fix: Linux 系统安装时游戏目录默认回退到用户主目录

从 deb 等系统包安装时，启动器可执行文件位于 /usr/bin，此前一键安装
StarLight 实例的"选择游戏目录"弹窗会默认到这个系统目录，普通用户既
无写权限，也不适合存放游戏数据。

将默认目录计算移入 theseus::default_game_dir_root()：Linux 下若可执行
文件位于 /usr、/opt、/snap 等系统路径，回退到用户主目录；便携版与其
他平台仍使用可执行文件所在目录。

.github/workflows/changelog-comment.yml

@@ -12,7 +12,7 @@ on:
 
 permissions:
   issues: write
-  pull-requests: read
+  pull-requests: write
 
 jobs:
   comment:
@@ -21,7 +21,7 @@ jobs:
 
     permissions:
       issues: write
-      pull-requests: read
+      pull-requests: write
       contents: read
 
     steps:

.github/workflows/check-rust.yml

@@ -22,5 +22,5 @@ jobs:
           node-version-file: .nvmrc
       - uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8 # stable
       - uses: cargo-bins/cargo-binstall@dc19f1e48450eefe5a29b8da6c6b00a87d730b37 # v1.18.1
-      - run: cargo binstall --no-confirm cargo-shear
+      - run: cargo binstall --no-confirm cargo-shear@1.13.4
       - run: cargo shear

Cargo.lock

@@ -6841,7 +6841,7 @@ dependencies = [
 
 [[package]]
 name = "theseus"
-version = "1.0.0-beta15"
+version = "1.0.2-beta7"
 dependencies = [
  "ariadne",
  "async-minecraft-ping",
@@ -6945,7 +6945,7 @@ dependencies = [
 
 [[package]]
 name = "theseus_gui"
-version = "1.0.0-beta15"
+version = "1.0.2-beta7"
 dependencies = [
  "ashpd",
  "async_zip",

apps/app-frontend/package.json

@@ -1,7 +1,7 @@
 {
 	"name": "@modrinth/app-frontend",
 	"private": true,
-	"version": "1.0.0-beta15",
+	"version": "1.0.2-beta7",
 	"type": "module",
 	"scripts": {
 		"dev": "vite",

apps/app-frontend/src/App.vue

@@ -95,6 +95,7 @@ import NavRail from '@/components/ui/NavRail.vue'
 import OnboardingOverlay from '@/components/ui/onboarding/OnboardingOverlay.vue'
 import QuickInstanceSwitcher from '@/components/ui/QuickInstanceSwitcher.vue'
 import SkinSiteSessionFrame from '@/components/ui/SkinSiteSessionFrame.vue'
+import RemoteAnnouncements from '@/components/ui/RemoteAnnouncements.vue'
 import StartupAnnouncementModal from '@/components/ui/StartupAnnouncementModal.vue'
 import SplashScreen from '@/components/ui/SplashScreen.vue'
 import WindowControls from '@/components/ui/WindowControls.vue'
@@ -168,6 +169,7 @@ import { createServerInstall, provideServerInstall } from '@/providers/server-in
 import { setupProviders } from '@/providers/setup'
 import { setupAuthProvider } from '@/providers/setup/auth'
 import { setupLoadingStateProvider } from '@/providers/setup/loading-state'
+import { setupKeyboardShortcuts } from '@/composables/useKeyboardShortcuts'
 import { useError } from '@/store/error.js'
 import { useTheming } from '@/store/state'
 
@@ -183,6 +185,8 @@ const onSchematicWorkshopPage = computed(() => route.path === '/lab/schematic-pr
 const isSchematicFile = (path: string) => /\.(litematic|schematic|schem)$/i.test(path)
 const APP_LEFT_NAV_WIDTH = '4rem'
 
+setupKeyboardShortcuts()
+
 const discoverContentPath = computed(() => {
 	const projectType = route.params.projectType
 	if (
@@ -2227,6 +2231,7 @@ provideAppUpdateDownloadProgress(appUpdateDownload)
 	<SkinSiteSessionFrame v-if="stateInitialized" />
 	<InstancePlayerModal v-if="stateInitialized" />
 	<StartupAnnouncementModal ref="startupAnnouncementModal" />
+	<RemoteAnnouncements :ready="stateInitialized && !showOnboarding && !stateFailed" />
 	<div id="teleports"></div>
 	<div
 		v-if="stateInitialized && themeStore.customBackgroundPath && !themeStore.transparentBackground"

apps/app-frontend/src/announcements/catalog.ts

@@ -32,6 +32,119 @@ export const ANNOUNCEMENT_CHANGE_TYPES: readonly AnnouncementChangeType[] = [
 ]
 
 export const launcherAnnouncements: readonly LauncherAnnouncement[] = [
+	{
+		id: 'launcher-1.0.2-beta6',
+		version: '1.0.2-beta6',
+		publishedAt: '2026-10-11',
+		title: {
+			'en-US': 'Starlight Launcher 1.0.2-beta6',
+			'zh-CN': 'Starlight Launcher 1.0.2-beta6',
+		},
+		changes: {
+			added: [
+				{
+					'en-US': 'Added keyboard shortcut settings: enable and rebind navigation and quick-scrolling shortcuts.',
+					'zh-CN': '新增键盘快捷键设置：可启用并自定义导航与快速滚动快捷键。',
+				},
+				{
+					'en-US': 'Added crash log sharing and AI analysis: share crash diagnostics to LogShare for a structured summary and optional AI analysis, with a rebuilt crash window that browses log files and streams the analysis.',
+					'zh-CN': '新增崩溃日志分享与 AI 分析：可将崩溃诊断分享到 LogShare 获取结构化摘要与 AI 分析；崩溃窗口重做为双栏布局，可浏览日志文件并流式查看分析结果。',
+				},
+				{
+					'en-US': 'Crash logs now also collect JVM crash reports (hs_err_pid*.log) and launcher logs.',
+					'zh-CN': '崩溃日志现在也会收集 JVM 崩溃报告（hs_err_pid*.log）与启动器日志。',
+				},
+				{
+					'en-US': 'Added a launcher log export entry.',
+					'zh-CN': '新增启动器日志导出入口。',
+				},
+				{
+					'en-US': 'Instance groups can now be reordered by dragging.',
+					'zh-CN': '实例分组支持拖拽重排。',
+				},
+			],
+			changed: [
+				{
+					'en-US': 'Synced the latest supported AI chat model list from LobeHub.',
+					'zh-CN': '同步 LobeHub 最新的 AI 聊天模型列表。',
+				},
+			],
+			fixed: [
+				{
+					'en-US': 'Fixed remote announcements not refreshing.',
+					'zh-CN': '修复远端公告不刷新的问题。',
+				},
+				{
+					'en-US': 'Completed the Chinese translations for the armor preview feature.',
+					'zh-CN': '补齐盔甲预览功能的中文翻译。',
+				},
+			],
+		},
+	},
+	{
+		id: 'launcher-1.0.2-beta5',
+		version: '1.0.2-beta5',
+		publishedAt: '2026-10-11',
+		title: {
+			'en-US': 'Starlight Launcher 1.0.2-beta5',
+			'zh-CN': 'Starlight Launcher 1.0.2-beta5',
+		},
+		changes: {
+			added: [
+				{
+					'en-US': 'Added a remote announcements center: a bell in the top bar opens a panel listing launcher announcements fetched from the Starlight skin site.',
+					'zh-CN': '新增远程公告中心：顶栏的铃铛可打开公告面板，展示从 Starlight 皮肤站拉取的启动器公告。',
+				},
+				{
+					'en-US': 'Added a custom Minecraft window title option: set a global toggle and default title, and let each instance override it. The game window is renamed on Windows.',
+					'zh-CN': '新增自定义 Minecraft 窗口标题：可设置全局开关与默认标题，并允许各实例单独覆盖；Windows 下会重命名游戏窗口。',
+				},
+			],
+			fixed: [
+				{
+					'en-US': 'Completed the Chinese translations for the armor preview feature.',
+					'zh-CN': '补齐盔甲预览功能的中文翻译。',
+				},
+			],
+		},
+	},
+	{
+		id: 'launcher-1.0.2-beta4',
+		version: '1.0.2-beta4',
+		publishedAt: '2026-10-08',
+		title: {
+			'en-US': 'Starlight Launcher 1.0.2-beta4',
+			'zh-CN': 'Starlight Launcher 1.0.2-beta4',
+		},
+		changes: {
+			added: [
+				{
+					'en-US': 'Added armor and armor-trim rendering to the skin preview, letting you try on armor pieces and trim patterns directly in the skin editor.',
+					'zh-CN': '皮肤预览新增盔甲与盔甲纹饰渲染，可在皮肤编辑器内直接试穿各部位盔甲并调整纹饰图案。',
+				},
+				{
+					'en-US': 'Armor preview selections in the skin editor are now saved locally, so they persist across sessions.',
+					'zh-CN': '皮肤编辑器中的盔甲预览选择现在会保存在本地，跨会话保留。',
+				},
+			],
+			changed: [
+				{
+					'en-US': 'Improved download scheduling to reduce concurrency automatically when tasks are waiting for capacity, making large Minecraft installations more reliable on constrained connections.',
+					'zh-CN': '优化下载任务调度：任务因容量不足排队时会自动降低并发，提升大型 Minecraft 版本在受限网络环境下的安装稳定性。',
+				},
+			],
+			fixed: [
+				{
+					'en-US': 'Fixed downloads timing out while waiting for internal connection capacity, which could cause Minecraft installations to fail even when the network was available.',
+					'zh-CN': '修复下载任务等待内部连接容量时过早超时，导致网络正常的情况下 Minecraft 安装仍可能失败的问题。',
+				},
+				{
+					'en-US': 'Fixed instance group changes not saving for some instances.',
+					'zh-CN': '修复部分实例的分组修改无法保存的问题。',
+				},
+			],
+		},
+	},
 	{
 		id: 'launcher-1.0.2-beta3',
 		version: '1.0.2-beta3',

apps/app-frontend/src/components/ui/AppActionBar.vue

@@ -67,6 +67,23 @@
 				</div>
 			</template>
 		</Dropdown>
+		<ButtonStyled
+			v-tooltip="formatMessage(messages.announcements)"
+			type="transparent"
+			circular
+		>
+			<button
+				:aria-label="formatMessage(messages.announcements)"
+				class="relative"
+				@click="openAnnouncementCenter"
+			>
+				<NewspaperIcon />
+				<span
+					v-if="announcementUnreadCount"
+					class="absolute right-0 top-0 size-2 rounded-full bg-red ring-2 ring-bg-raised"
+				/>
+			</button>
+		</ButtonStyled>
 		<ButtonStyled
 			v-if="!isDownloadsPage && hasActiveDownloads && !hasVisibleActiveDownloadToasts"
 			color="brand"
@@ -190,6 +207,7 @@
 <script setup lang="ts">
 import {
 	BellIcon,
+	NewspaperIcon,
 	DownloadIcon,
 	DropdownIcon,
 	OnlineIndicatorIcon,
@@ -211,7 +229,7 @@ import {
 } from '@modrinth/ui'
 import { convertFileSrc } from '@tauri-apps/api/core'
 import { Dropdown } from 'floating-vue'
-import { computed, onBeforeUnmount, ref, watch } from 'vue'
+import { computed, onBeforeUnmount, onMounted, ref, watch } from 'vue'
 import { useRoute, useRouter } from 'vue-router'
 
 import AppUpdateButton from '@/components/ui/app-update-button/index.vue'
@@ -222,6 +240,10 @@ import { get_many as getInstances } from '@/helpers/instance'
 import { get_all as getRunningProcesses, kill as killProcess } from '@/helpers/process'
 import type { LoadingBar } from '@/helpers/state'
 import { progress_bars_list } from '@/helpers/state'
+import {
+	OPEN_REMOTE_ANNOUNCEMENT_CENTER_EVENT,
+	REMOTE_ANNOUNCEMENTS_UPDATED_EVENT,
+} from '@/helpers/remote-announcements'
 import type { GameInstance } from '@/helpers/types'
 import { downloadBarTypes, injectDownloadManager } from '@/providers/download-manager'
 
@@ -231,6 +253,25 @@ const popupNotificationManager = injectPopupNotificationManager()
 const downloadManager = injectDownloadManager()
 const { formatMessage } = useVIntl()
 
+const announcementUnreadCount = ref(0)
+
+function openAnnouncementCenter() {
+	window.dispatchEvent(new CustomEvent(OPEN_REMOTE_ANNOUNCEMENT_CENTER_EVENT))
+}
+
+function updateAnnouncementCount(event: Event) {
+	const detail = (event as CustomEvent<{ unreadKeys?: string[] }>).detail
+	announcementUnreadCount.value = detail?.unreadKeys?.length ?? 0
+}
+
+onMounted(() => {
+	window.addEventListener(REMOTE_ANNOUNCEMENTS_UPDATED_EVENT, updateAnnouncementCount)
+})
+
+onBeforeUnmount(() => {
+	window.removeEventListener(REMOTE_ANNOUNCEMENTS_UPDATED_EVENT, updateAnnouncementCount)
+})
+
 type NotificationHistoryItem = {
 	key: string
 	createdAt?: number
@@ -370,6 +411,10 @@ const messages = defineMessages({
 		id: 'app.action-bar.notifications',
 		defaultMessage: 'Notifications',
 	},
+	announcements: {
+		id: 'app.action-bar.announcements',
+		defaultMessage: 'Announcements',
+	},
 	clearNotifications: {
 		id: 'app.action-bar.notifications.clear',
 		defaultMessage: 'Clear all',

apps/app-frontend/src/components/ui/RemoteAnnouncements.vue

@@ -0,0 +1,425 @@
+<script setup lang="ts">
+import {
+	Button,
+	commonMessages,
+	defineMessages,
+	NewModal,
+	useModalStack,
+	useVIntl,
+} from '@modrinth/ui'
+import { renderString } from '@modrinth/utils'
+import { fetch as tauriFetch } from '@tauri-apps/plugin-http'
+import { openUrl } from '@tauri-apps/plugin-opener'
+import { computed, nextTick, onMounted, onUnmounted, reactive, ref, watch } from 'vue'
+
+import {
+	announcementKey,
+	isAnnouncementActive,
+	mapBroadcastAnnouncements,
+	OPEN_REMOTE_ANNOUNCEMENT_CENTER_EVENT,
+	parseAnnouncements,
+	REMOTE_ANNOUNCEMENTS_UPDATED_EVENT,
+	type RemoteAnnouncement,
+	safeAnnouncementUrl,
+} from '@/helpers/remote-announcements'
+
+import {
+	requestSkinSiteDownloadToken,
+	skinSiteStatus,
+	waitForSkinSiteSession,
+} from '@/composables/skin-site-session.ts'
+
+const props = defineProps<{ ready: boolean; previewOnly?: boolean }>()
+const { formatMessage } = useVIntl()
+const { hasModal } = useModalStack()
+const messages = defineMessages({
+	view: { id: 'app.remote-announcements.view', defaultMessage: 'View announcement' },
+	unread: { id: 'app.remote-announcements.unread', defaultMessage: 'Unread' },
+	readAll: {
+		id: 'app.remote-announcements.read-all',
+		defaultMessage: 'Mark all announcements as read',
+	},
+	centerTitle: { id: 'app.remote-announcements.center-title', defaultMessage: 'Announcements' },
+	empty: { id: 'app.remote-announcements.empty', defaultMessage: 'No announcements' },
+	previewTitle: {
+		id: 'app.remote-announcements.preview-title',
+		defaultMessage: 'Announcement style preview',
+	},
+	previewSummary: {
+		id: 'app.remote-announcements.preview-summary',
+		defaultMessage:
+			'This is a local preview. Select View announcement to preview the full Markdown content.',
+	},
+	previewContent: {
+		id: 'app.remote-announcements.preview-content',
+		defaultMessage:
+			'## Announcement preview\n\nThis is **sample content**, not a published announcement.\n\n- Supports headings, lists, and links\n- Close buttons are always available\n\n> Previewing does not change real announcement read status.\n\n| Type | Display |\n| --- | --- |\n| Modal | Full Markdown content |\n| Popup | Summary, then full content |\n\n[Visit the website](https://skin.starlight.cool/)',
+	},
+	previewAction: { id: 'app.remote-announcements.preview-action', defaultMessage: 'Visit website' },
+})
+const modal = ref<InstanceType<typeof NewModal>>()
+const selected = ref<RemoteAnnouncement | null>(null)
+const active = ref(false)
+const centerOpen = ref(false)
+const startupNotice = ref<RemoteAnnouncement | null>(null)
+const html = computed(() => renderString(selected.value?.content ?? ''))
+const stateKey = 'starlight-remote-announcements-v2'
+const read = reactive(new Set<string>())
+const queuedThisSession = new Set<string>()
+const startupNotified = new Set<string>()
+let items: RemoteAnnouncement[] = []
+let pending: RemoteAnnouncement[] = []
+let cacheKey = 'starlight-remote-announcements-cache-v1'
+let cacheLoaded = false
+let disposed = false
+let interval: ReturnType<typeof setInterval> | undefined
+let advanceTimer: ReturnType<typeof setTimeout> | undefined
+
+function persist() {
+	if (props.previewOnly) return
+	try {
+		localStorage.setItem(
+			stateKey,
+			JSON.stringify({
+				read: [...read].slice(-1000),
+			}),
+		)
+	} catch {
+		// localStorage may be unavailable (private mode / quota)
+	}
+}
+function emitState() {
+	window.dispatchEvent(
+		new CustomEvent(REMOTE_ANNOUNCEMENTS_UPDATED_EVENT, {
+			detail: {
+				items,
+				unreadKeys: items.filter((item) => !read.has(announcementKey(item))).map(announcementKey),
+			},
+		}),
+	)
+}
+function openCenter(item?: RemoteAnnouncement) {
+	if (!props.ready || disposed) return
+	void refresh()
+	centerOpen.value = true
+	if (item) {
+		startupNotice.value = null
+		selectAnnouncement(item)
+	} else if (!selected.value && items.length) {
+		selectAnnouncement(items[0])
+	}
+	void nextTick(() => modal.value?.show())
+}
+function handleOpenCenter() {
+	if (props.previewOnly) return
+	openCenter()
+}
+async function show(item: RemoteAnnouncement) {
+	if (
+		disposed ||
+		!props.ready ||
+		!isAnnouncementActive(item) ||
+		(hasModal.value && !active.value && !centerOpen.value)
+	)
+		return
+	centerOpen.value = true
+	active.value = true
+	selectAnnouncement(item)
+	await nextTick()
+	if (!disposed) modal.value?.show()
+}
+function selectAnnouncement(item: RemoteAnnouncement) {
+	selected.value = item
+	const key = announcementKey(item)
+	read.add(key)
+	pending = pending.filter((entry) => announcementKey(entry) !== key)
+	persist()
+	emitState()
+}
+function markAllRead() {
+	for (const item of items) {
+		read.add(announcementKey(item))
+	}
+	pending = []
+	persist()
+	emitState()
+}
+function advance() {
+	if (disposed || !props.ready || hasModal.value || active.value) return
+	const next = pending.shift()
+	if (next) {
+		void show(next)
+		return
+	}
+	for (const item of items) {
+		const key = announcementKey(item)
+		if (
+			item.type === 'notification' &&
+			!startupNotified.has(key) &&
+			!read.has(key) &&
+			isAnnouncementActive(item)
+		) {
+			startupNotice.value = item
+			startupNotified.add(key)
+			setTimeout(() => {
+				if (startupNotice.value === item) {
+					startupNotice.value = null
+					advance()
+				}
+			}, 8000)
+			break
+		}
+	}
+}
+function closed() {
+	active.value = false
+	centerOpen.value = false
+	if (advanceTimer) clearTimeout(advanceTimer)
+	advanceTimer = setTimeout(advance, 350)
+}
+function sync(next: RemoteAnnouncement[], fresh: boolean) {
+	items = next.filter((item) => isAnnouncementActive(item))
+	const keys = new Set(items.map(announcementKey))
+	pending = pending.filter((item) => keys.has(announcementKey(item)))
+	if (selected.value && !keys.has(announcementKey(selected.value))) selected.value = null
+	emitState()
+	if (fresh) {
+		for (const item of items) {
+			const key = announcementKey(item)
+			if (
+				item.type === 'modal' &&
+				!queuedThisSession.has(key) &&
+				(!read.has(key) || item.priority === 'critical')
+			) {
+				queuedThisSession.add(key)
+				pending.push(item)
+			}
+		}
+		advance()
+	}
+}
+function loadCache() {
+	if (cacheLoaded || !cacheKey) return
+	cacheLoaded = true
+	try {
+		const cached = JSON.parse(localStorage.getItem(cacheKey) ?? 'null')
+		if (cached && typeof cached.savedAt === 'number' && Date.now() - cached.savedAt < 86400000) {
+			const parsed = parseAnnouncements(cached.items)
+			if (parsed) sync(parsed, false)
+		}
+	} catch {
+		// Ignore malformed or expired cache payloads
+	}
+}
+function saveCache(next: RemoteAnnouncement[]) {
+	if (!cacheKey) return
+	try {
+		localStorage.setItem(cacheKey, JSON.stringify({ savedAt: Date.now(), items: next }))
+	} catch {
+		// localStorage may be unavailable (private mode / quota)
+	}
+}
+async function refresh() {
+	if (disposed) return
+	loadCache()
+	if (skinSiteStatus.value !== 'signed-in') return
+	try {
+		await waitForSkinSiteSession()
+		const token = await requestSkinSiteDownloadToken()
+		const response = await tauriFetch('https://skin.starlight.cool/starlight/skin/broadcast/all', {
+			method: 'GET',
+			headers: { Authorization: `Bearer ${token}` },
+		})
+		if (!response.ok) return
+		const data = await response.json()
+		const parsed = mapBroadcastAnnouncements((data as { payload?: unknown } | null)?.payload)
+		if (parsed && !disposed) {
+			sync(parsed, true)
+			saveCache(parsed)
+		}
+	} catch {
+		// Remote fetch failed; previously cached items remain displayed
+	}
+}
+async function openLink(value: unknown) {
+	const url = safeAnnouncementUrl(value)
+	if (!url) return
+	try {
+		await openUrl(url)
+	} catch {
+		// Opener may reject unknown schemes
+	}
+}
+function contentClick(event: MouseEvent) {
+	const link = event.target instanceof Element ? event.target.closest('a') : null
+	if (!link) return
+	event.preventDefault()
+	event.stopPropagation()
+	void openLink(link.getAttribute('href'))
+}
+function preview(type: RemoteAnnouncement['type'], withAction = false) {
+	if (!props.previewOnly || !props.ready || hasModal.value || disposed) return
+	const now = new Date().toISOString()
+	const item: RemoteAnnouncement = {
+		id: 'local-preview-' + type,
+		title: formatMessage(messages.previewTitle),
+		summary: formatMessage(messages.previewSummary),
+		content: formatMessage(messages.previewContent),
+		type,
+		priority: 'normal',
+		starts_at: now,
+		ends_at: null,
+		published_at: now,
+		action_label: withAction ? formatMessage(messages.previewAction) : null,
+		action_url: withAction ? 'https://skin.starlight.cool/' : null,
+	}
+	read.clear()
+	queuedThisSession.clear()
+	sync([item], true)
+}
+defineExpose({ preview })
+onMounted(() => {
+	if (props.previewOnly) return
+	try {
+		const saved = JSON.parse(localStorage.getItem(stateKey) ?? 'null')
+		if (saved && Array.isArray(saved.read))
+			for (const key of saved.read) if (typeof key === 'string') read.add(key)
+	} catch {
+		// Ignore malformed local read-state
+	}
+	window.addEventListener(OPEN_REMOTE_ANNOUNCEMENT_CENTER_EVENT, handleOpenCenter)
+	const start = () => {
+		if (disposed) return
+		void refresh()
+		interval = setInterval(() => {
+			sync(items, false)
+			advance()
+		}, 15000)
+	}
+	// Defer the startup request until after first paint.
+	if (typeof requestIdleCallback === 'function') {
+		requestIdleCallback(start, { timeout: 2000 })
+	} else {
+		setTimeout(start, 500)
+	}
+})
+watch(skinSiteStatus, (status) => {
+	if (disposed || props.previewOnly) return
+	if (status === 'signed-in') void refresh()
+})
+watch([() => props.ready, hasModal], () => {
+	if (advanceTimer) clearTimeout(advanceTimer)
+	advanceTimer = setTimeout(advance, 350)
+})
+onUnmounted(() => {
+	disposed = true
+	if (interval) clearInterval(interval)
+	if (advanceTimer) clearTimeout(advanceTimer)
+	window.removeEventListener(OPEN_REMOTE_ANNOUNCEMENT_CENTER_EVENT, handleOpenCenter)
+})
+</script>
+
+<template>
+	<div
+		v-if="startupNotice"
+		class="fixed right-4 top-16 z-50 w-[22rem] max-w-[calc(100vw-2rem)] rounded-xl border border-surface-5 bg-surface-3 p-3 shadow-lg"
+	>
+		<button class="w-full text-left" @click="startupNotice && openCenter(startupNotice)">
+			<div class="mb-1 text-xs font-semibold uppercase text-brand">
+				{{ formatMessage(messages.unread) }}
+			</div>
+			<div class="font-semibold text-[var(--color-text-primary)]">{{ startupNotice.title }}</div>
+			<div
+				v-if="startupNotice.summary"
+				class="mt-1 line-clamp-2 text-sm text-[var(--color-text-tertiary)]"
+			>
+				{{ startupNotice.summary }}
+			</div>
+		</button>
+	</div>
+	<NewModal
+		ref="modal"
+		:header="formatMessage(messages.centerTitle)"
+		:on-hide="closed"
+		max-width="80vw"
+		width="80vw"
+		max-content-height="calc(80vh - 8rem)"
+		scrollable
+	>
+		<div class="flex h-[calc(80vh-8rem)] min-h-0 gap-3">
+			<aside class="flex min-h-0 w-[32%] min-w-[14rem] flex-col border-r border-surface-5 pr-3">
+				<div class="mb-2 flex items-center justify-between">
+					<span class="font-semibold text-[var(--color-text-primary)]">{{
+						formatMessage(messages.centerTitle)
+					}}</span>
+					<Button
+						v-if="items.some((item) => !read.has(announcementKey(item)))"
+						@click="markAllRead"
+						>{{ formatMessage(messages.readAll) }}</Button
+					>
+				</div>
+				<div
+					v-if="!items.length"
+					class="py-8 text-center text-sm text-[var(--color-text-tertiary)]"
+				>
+					{{ formatMessage(messages.empty) }}
+				</div>
+				<div v-else class="flex min-h-0 flex-col gap-1 overflow-auto">
+					<button
+						v-for="item in items"
+						:key="announcementKey(item)"
+						class="flex items-start gap-2 rounded-lg p-2 text-left hover:bg-surface-4"
+						:class="{
+							'bg-surface-4': selected && announcementKey(selected) === announcementKey(item),
+						}"
+						@click="selectAnnouncement(item)"
+					>
+						<span
+							class="mt-1.5 size-2 shrink-0 rounded-full"
+							:class="read.has(announcementKey(item)) ? 'opacity-0' : 'bg-red'"
+						/>
+						<span class="min-w-0 flex-1">
+							<span class="block truncate font-medium text-[var(--color-text-primary)]">{{
+								item.title
+							}}</span>
+							<span class="block line-clamp-2 text-xs text-[var(--color-text-tertiary)]">{{
+								item.summary || item.content
+							}}</span>
+						</span>
+					</button>
+				</div>
+			</aside>
+			<section v-if="selected" class="min-h-0 min-w-0 flex-1 overflow-auto px-1">
+				<h2 class="mb-4 text-xl font-semibold text-[var(--color-text-primary)]">
+					{{ selected.title }}
+				</h2>
+				<div
+					class="markdown-body break-words"
+					@click="contentClick"
+					@auxclick="contentClick"
+					v-html="html"
+				/>
+				<div class="mt-4 flex justify-end">
+					<Button
+						v-if="selected.action_url && selected.action_label"
+						type="colored"
+						color="brand"
+						@click="openLink(selected.action_url)"
+						>{{ selected.action_label }}</Button
+					>
+				</div>
+			</section>
+			<div
+				v-else
+				class="flex flex-1 items-center justify-center text-sm text-[var(--color-text-tertiary)]"
+			>
+				{{ formatMessage(messages.empty) }}
+			</div>
+		</div>
+		<template #actions>
+			<div class="flex flex-wrap justify-end gap-2">
+				<Button @click="modal?.hide()">{{ formatMessage(commonMessages.closeButton) }} </Button>
+			</div>
+		</template>
+	</NewModal>
+</template>

apps/app-frontend/src/components/ui/instance_settings/WindowSettings.vue

@@ -36,24 +36,29 @@ const fullscreenSetting: Ref<boolean> = ref(
 	instance.value.force_fullscreen ?? globalSettings.force_fullscreen,
 )
 const maximizeWindowSetting = ref(instance.value.maximize_window ?? globalSettings.maximize_window)
+const windowTitle = ref(instance.value.window_title ?? '')
 
 const editInstanceObject = computed(() => {
+	const title = windowTitle.value.trim() ? windowTitle.value.trim() : null
 	if (!overrideWindowSettings.value) {
 		return {
 			force_fullscreen: null,
 			maximize_window: null,
 			game_resolution: null,
+			// The title is independent of the window-size override checkbox.
+			window_title: title,
 		}
 	}
 	return {
 		force_fullscreen: fullscreenSetting.value,
 		maximize_window: maximizeWindowSetting.value,
 		game_resolution: fullscreenSetting.value ? null : resolution.value,
+		window_title: title,
 	}
 })
 
 watch(
-	[overrideWindowSettings, resolution, fullscreenSetting, maximizeWindowSetting],
+	[overrideWindowSettings, resolution, fullscreenSetting, maximizeWindowSetting, windowTitle],
 	async () => {
 		await edit(instance.value.id, editInstanceObject.value)
 	},
@@ -109,6 +114,18 @@ const messages = defineMessages({
 		id: 'instance.settings.tabs.window.height.enter',
 		defaultMessage: 'Enter height...',
 	},
+	windowTitle: {
+		id: 'instance.settings.tabs.window.window-title',
+		defaultMessage: 'Window title',
+	},
+	windowTitleDescription: {
+		id: 'instance.settings.tabs.window.window-title.description',
+		defaultMessage: 'Customize the Minecraft window title. Leave empty to keep the default.',
+	},
+	enterWindowTitle: {
+		id: 'instance.settings.tabs.window.window-title.enter',
+		defaultMessage: 'Enter window title...',
+	},
 })
 </script>
 
@@ -200,5 +217,25 @@ const messages = defineMessages({
 				:placeholder="formatMessage(messages.enterHeight)"
 			/>
 		</div>
+		<div
+			v-if="globalSettings.custom_window_title_enabled"
+			class="flex items-center gap-4 justify-between"
+		>
+			<div class="flex flex-col gap-1">
+				<h2 class="m-0 inline-flex items-center gap-2 text-lg font-semibold text-contrast">
+					{{ formatMessage(messages.windowTitle) }}
+				</h2>
+				<p class="m-0">
+					{{ formatMessage(messages.windowTitleDescription) }}
+				</p>
+			</div>
+			<StyledInput
+				id="window-title"
+				v-model="windowTitle"
+				autocomplete="off"
+				type="text"
+				:placeholder="formatMessage(messages.enterWindowTitle)"
+			/>
+		</div>
 	</div>
 </template>

apps/app-frontend/src/components/ui/library/DraggableInstanceCard.vue

@@ -0,0 +1,92 @@
+<script setup lang="ts">
+import { KeyboardSensor, PointerSensor, useDraggable } from '@dnd-kit/vue'
+import { useEventListener } from '@vueuse/core'
+import { computed, ref } from 'vue'
+
+import type { GameInstance } from '@/helpers/types'
+
+const props = defineProps<{
+	instance: GameInstance
+	instanceGroupId: string
+	disabled: boolean
+}>()
+
+const emit = defineEmits<{
+	(e: 'contextmenu' | 'card-click', event: MouseEvent): void
+	(e: 'start-long-press' | 'cancel-long-press'): void
+}>()
+
+const cardElement = ref<HTMLElement>()
+
+const instanceCardSensors = [
+	PointerSensor.configure({
+		preventActivation: () => false,
+	}),
+	KeyboardSensor,
+]
+
+const dragDisabled = computed(() => props.disabled)
+
+const { isDragging } = useDraggable({
+	id: computed(() => `instance:${props.instanceGroupId}:${props.instance.id}`),
+	element: cardElement,
+	disabled: dragDisabled,
+	sensors: instanceCardSensors,
+	data: computed(() => ({
+		instanceId: props.instance.id,
+		fromGroup: props.instanceGroupId,
+	})),
+})
+
+let wantsClick = false
+
+useEventListener(window, 'pointerdown', () => {
+	wantsClick = true
+})
+useEventListener(window, 'pointerup', () => {
+	if (isDragging.value) {
+		wantsClick = false
+	}
+})
+useEventListener(window, 'blur', () => {
+	wantsClick = false
+})
+
+function onCardClick(event: MouseEvent) {
+	if (!wantsClick || isDragging.value) return
+	wantsClick = false
+	emit('card-click', event)
+}
+
+function onContextMenu(event: MouseEvent) {
+	emit('contextmenu', event)
+}
+
+function onMouseDown() {
+	if (!dragDisabled.value) {
+		emit('start-long-press')
+	}
+}
+
+function onMouseUp() {
+	emit('cancel-long-press')
+}
+</script>
+
+<template>
+	<div
+		ref="cardElement"
+		class="group relative min-w-0 w-full"
+		@click="onCardClick"
+		@mousedown="onMouseDown"
+		@mouseup="onMouseUp"
+		@mouseleave="onMouseUp"
+		@touchstart="!dragDisabled && onMouseDown()"
+		@touchend="onMouseUp"
+		@touchcancel="onMouseUp"
+		@contextmenu.prevent.stop="onContextMenu"
+	>
+		<slot :is-dragging="isDragging" />
+		<slot v-if="!isDragging" name="overlay" />
+	</div>
+</template>

apps/app-frontend/src/components/ui/library/InstanceGroup.vue

@@ -0,0 +1,521 @@
+<script setup lang="ts">
+import { useDroppable } from '@dnd-kit/vue'
+import {
+	ArrowDownIcon,
+	ArrowUpIcon,
+	DropdownIcon,
+	EditIcon,
+	PlusIcon,
+	TrashIcon,
+	XIcon,
+} from '@modrinth/assets'
+import {
+	Button,
+	Checkbox,
+	commonMessages,
+	defineMessages,
+	IconButton,
+	InlineEditableText,
+	NewModal,
+	TagItem,
+	useVIntl,
+} from '@modrinth/ui'
+import { computed, nextTick, ref, watch } from 'vue'
+
+import ContextMenu from '@/components/ui/ContextMenu.vue'
+import Instance from '@/components/ui/Instance.vue'
+import DraggableInstanceCard from '@/components/ui/library/DraggableInstanceCard.vue'
+import { UNGROUPED_GROUP_KEY } from '@/composables/useGridGrouping'
+import { FAVORITES_GROUP_ID } from '@/composables/useInstanceGroups'
+import type { GameInstance } from '@/helpers/types'
+
+const MAX_GROUP_NAME_LENGTH = 256
+
+const { formatMessage } = useVIntl()
+
+const messages = defineMessages({
+	ungrouped: { id: 'app.instances.group.ungrouped', defaultMessage: 'No group' },
+	pinned: { id: 'app.instances.group.pinned', defaultMessage: 'Pinned' },
+	emptyGroup: {
+		id: 'app.instances.group.empty',
+		defaultMessage: 'Drag and drop to add instances.',
+	},
+	editGroupName: {
+		id: 'app.instances.group.edit-name',
+		defaultMessage: 'Edit group name',
+	},
+	deleteGroup: {
+		id: 'app.instances.group.delete-group',
+		defaultMessage: 'Delete group',
+	},
+	deleteGroupDescription: {
+		id: 'app.instances.group.delete-description',
+		defaultMessage: 'Instances in this group will be ungrouped.',
+	},
+	moveGroupUp: {
+		id: 'app.instances.group.move-up',
+		defaultMessage: 'Move group up',
+	},
+	moveGroupDown: {
+		id: 'app.instances.group.move-down',
+		defaultMessage: 'Move group down',
+	},
+	addToGroup: {
+		id: 'app.instances.group.add-to-group',
+		defaultMessage: 'Add to group',
+	},
+	newInstance: {
+		id: 'app.instances.group.new-instance',
+		defaultMessage: 'New instance',
+	},
+	collapseGroup: {
+		id: 'app.instances.group.collapse',
+		defaultMessage: 'Collapse group',
+	},
+	expandGroup: {
+		id: 'app.instances.group.expand',
+		defaultMessage: 'Expand group',
+	},
+	renameGroup: {
+		id: 'app.instances.group.rename-group',
+		defaultMessage: 'Rename group',
+	},
+	groupNameEmpty: {
+		id: 'app.instances.group.name-empty',
+		defaultMessage: 'Group names cannot be empty.',
+	},
+	groupNameTooLong: {
+		id: 'app.instances.group.name-too-long',
+		defaultMessage: 'Group names cannot be longer than {maxLength} characters.',
+	},
+})
+
+const props = defineProps<{
+	sectionKey: string
+	groupName?: string
+	instances: GameInstance[]
+	grouping: string
+	isCollapsed: boolean
+	displayMode: string
+	selectMode: boolean
+	selectedInstanceIds: Set<string>
+	isSortAscending?: boolean
+	hideHeader?: boolean
+	canMoveUp?: boolean
+	canMoveDown?: boolean
+	groupPendingNameEdit?: string | null
+}>()
+
+// Events are grouped only where the payload shapes genuinely match; the
+// per-event names are documentation, not part of the type.
+const emit = defineEmits<{
+	(e: 'toggleCollapse' | 'deleteGroup' | 'addToGroup' | 'startLongPress', id: string): void
+	(e: 'handleCheckboxClick' | 'handleCardClick', instanceId: string, event: MouseEvent): void
+	(e: 'handleContextMenu', event: MouseEvent, instanceId: string, sectionKey: string): void
+	(e: 'renameGroup', oldKey: string, newKey: string): void
+	(e: 'cancelLongPress' | 'newInstance' | 'renameComplete'): void
+	(e: 'moveGroup', groupKey: string, direction: -1 | 1): void
+}>()
+
+const groupOptions = ref<InstanceType<typeof ContextMenu>>()
+const groupContainerRef = ref<HTMLElement>()
+const groupNameInput = ref<InstanceType<typeof InlineEditableText>>()
+const deletingGroup = ref(false)
+const confirmDeleteGroupModal = ref<InstanceType<typeof NewModal>>()
+const groupName = ref(props.groupName ?? props.sectionKey)
+
+const isUngrouped = computed(() => props.sectionKey === UNGROUPED_GROUP_KEY)
+const isFavorites = computed(() => props.sectionKey === FAVORITES_GROUP_ID)
+const isCustomGroup = computed(
+	() => props.grouping === 'Group' && !isUngrouped.value && !isFavorites.value,
+)
+const isGroupDragActive = computed(() => props.grouping === 'Group')
+const effectiveCollapsed = computed(() => (props.hideHeader ? false : props.isCollapsed))
+
+const { isDropTarget } = useDroppable({
+	id: computed(() => `instance-group:${props.sectionKey}`),
+	element: groupContainerRef,
+	disabled: computed(() => props.hideHeader || !isGroupDragActive.value),
+	data: computed(() => ({
+		groupId: props.sectionKey,
+	})),
+})
+
+watch(
+	() => [props.sectionKey, props.groupName],
+	() => {
+		groupName.value = props.groupName ?? props.sectionKey
+	},
+)
+
+watch(
+	() => props.groupPendingNameEdit,
+	async (pendingId) => {
+		if (pendingId !== props.sectionKey) return
+
+		await nextTick()
+		groupContainerRef.value?.scrollIntoView({ block: 'nearest' })
+		await groupNameInput.value?.startEditing()
+		emit('renameComplete')
+	},
+	{ immediate: true, flush: 'post' },
+)
+
+function validateGroupName(value: string) {
+	const normalized = value.trim()
+	if (normalized.length === 0) return false
+	if (normalized.length > MAX_GROUP_NAME_LENGTH) return false
+	return true
+}
+
+async function updateGroupName(value: string) {
+	const newName = value.trim()
+	if (!newName || newName === groupName.value) return false
+	emit('renameGroup', props.sectionKey, newName)
+	return true
+}
+
+function openGroupContextMenu(event: MouseEvent) {
+	groupOptions.value?.showMenu(
+		event,
+		props.sectionKey,
+		isCustomGroup.value
+			? [
+					{ name: 'new_instance' },
+					{ name: 'add_instances' },
+					{ name: 'edit_name' },
+					{ type: 'divider' },
+					{ name: 'delete_group', color: 'danger' },
+				]
+			: [{ name: 'new_instance' }],
+	)
+}
+
+async function handleGroupOption({ option }: { option: string }) {
+	if (option === 'new_instance') {
+		emit('newInstance')
+	} else if (option === 'add_instances') {
+		emit('addToGroup', props.sectionKey)
+	} else if (option === 'edit_name') {
+		groupNameInput.value?.startEditing()
+	} else if (option === 'delete_group') {
+		requestGroupDeletion()
+	}
+}
+
+function requestGroupDeletion() {
+	if (isUngrouped.value || isFavorites.value) return
+
+	if (props.instances.length > 0) {
+		confirmDeleteGroupModal.value?.show()
+	} else {
+		void removeGroup()
+	}
+}
+
+async function removeGroup() {
+	if (deletingGroup.value) return
+
+	deletingGroup.value = true
+	emit('deleteGroup', props.sectionKey)
+	setTimeout(() => {
+		deletingGroup.value = false
+		confirmDeleteGroupModal.value?.hide()
+	}, 300)
+}
+
+function onCardClick(instanceId: string, event: MouseEvent) {
+	emit('handleCardClick', instanceId, event)
+}
+
+function onStartLongPress(instanceId: string) {
+	emit('startLongPress', instanceId)
+}
+</script>
+
+<template>
+	<div
+		ref="groupContainerRef"
+		class="instance-group group/instance-container relative select-none pb-3"
+		@contextmenu.prevent.stop="openGroupContextMenu"
+	>
+		<div
+			v-if="!hideHeader && isDropTarget && isGroupDragActive"
+			class="pointer-events-none absolute -inset-2 inset-y-0 z-20 rounded-xl border-2 border-dashed border-contrast opacity-40 bg-transparent transition-opacity duration-150"
+		/>
+		<div
+			v-if="!hideHeader && (grouping === 'Group' || sectionKey !== UNGROUPED_GROUP_KEY)"
+			class="group/header flex h-10 w-full items-center gap-2 border-0 border-b border-solid border-b-surface-5"
+			:class="{ 'group-drag-handle cursor-grab': isCustomGroup }"
+		>
+			<div
+				class="flex min-w-0 cursor-pointer items-center gap-2"
+				@click="emit('toggleCollapse', sectionKey)"
+			>
+				<button
+					class="flex shrink-0 items-center border-0 bg-transparent p-0 cursor-pointer"
+					type="button"
+					:aria-expanded="!effectiveCollapsed"
+					:aria-label="
+						formatMessage(effectiveCollapsed ? messages.expandGroup : messages.collapseGroup)
+					"
+					@click.stop="emit('toggleCollapse', sectionKey)"
+				>
+					<DropdownIcon
+						class="size-5 shrink-0 text-[var(--color-text-tertiary)] transition-transform duration-300"
+						:class="{ 'rotate-180': !effectiveCollapsed }"
+					/>
+				</button>
+				<InlineEditableText
+					v-if="!isUngrouped && !isFavorites"
+					ref="groupNameInput"
+					v-model="groupName"
+					activation-mode="manual"
+					class="text-base font-semibold !h-10 text-[var(--color-text-default)] select-none"
+					max-width="24rem"
+					:max-length="MAX_GROUP_NAME_LENGTH"
+					:on-change="updateGroupName"
+					:validate="validateGroupName"
+				/>
+				<span v-else class="text-base font-semibold text-[var(--color-text-default)] select-none">
+					{{ isFavorites ? formatMessage(messages.pinned) : formatMessage(messages.ungrouped) }}
+				</span>
+				<TagItem v-if="instances.length" class="shrink-0 border-surface-3 bg-surface-2">
+					{{ instances.length }}
+				</TagItem>
+			</div>
+			<div class="min-w-0 flex-1" />
+			<div
+				v-if="isCustomGroup"
+				class="flex shrink-0 items-center opacity-0 transition-opacity duration-250 group-hover/header:opacity-100 focus-within:opacity-100"
+			>
+				<IconButton
+					v-tooltip="formatMessage(messages.moveGroupUp)"
+					:label="formatMessage(messages.moveGroupUp)"
+					type="quiet"
+					size="sm"
+					:disabled="!canMoveUp"
+					@click.stop="emit('moveGroup', sectionKey, -1)"
+				>
+					<ArrowUpIcon />
+				</IconButton>
+				<IconButton
+					v-tooltip="formatMessage(messages.moveGroupDown)"
+					:label="formatMessage(messages.moveGroupDown)"
+					type="quiet"
+					size="sm"
+					:disabled="!canMoveDown"
+					@click.stop="emit('moveGroup', sectionKey, 1)"
+				>
+					<ArrowDownIcon />
+				</IconButton>
+				<IconButton
+					v-tooltip="formatMessage(messages.editGroupName)"
+					:label="formatMessage(messages.editGroupName)"
+					type="quiet"
+					size="sm"
+					@click.stop="groupNameInput?.startEditing()"
+				>
+					<EditIcon />
+				</IconButton>
+				<IconButton
+					v-tooltip="formatMessage(messages.addToGroup)"
+					:label="formatMessage(messages.addToGroup)"
+					type="quiet"
+					size="sm"
+					@click.stop="emit('addToGroup', sectionKey)"
+				>
+					<PlusIcon />
+				</IconButton>
+				<IconButton
+					v-tooltip="formatMessage(messages.deleteGroup)"
+					:label="formatMessage(messages.deleteGroup)"
+					type="quiet"
+					size="sm"
+					:disabled="deletingGroup"
+					@click.stop="handleGroupOption({ option: 'delete_group' })"
+				>
+					<TrashIcon />
+				</IconButton>
+			</div>
+		</div>
+		<div v-if="!effectiveCollapsed" class="mt-2.5">
+			<section
+				class="grid grid-cols-[repeat(auto-fill,minmax(16rem,1fr))] w-full gap-3 mr-auto scroll-smooth overflow-y-auto"
+				:class="{
+					'grid-cols-[repeat(auto-fill,minmax(13rem,1fr))] gap-4': displayMode === 'cards',
+				}"
+			>
+				<template v-for="instance in instances" :key="instance.id">
+					<DraggableInstanceCard
+						v-if="isGroupDragActive"
+						:instance="instance"
+						:instance-group-id="sectionKey"
+						:disabled="selectMode"
+						@card-click="(event: MouseEvent) => onCardClick(instance.id, event)"
+						@contextmenu="
+							(event: MouseEvent) => emit('handleContextMenu', event, instance.id, props.sectionKey)
+						"
+						@start-long-press="onStartLongPress(instance.id)"
+						@cancel-long-press="emit('cancelLongPress')"
+					>
+						<template #default="{ isDragging }">
+							<div
+								:class="{
+									'pointer-events-none': selectMode,
+									'relative cursor-pointer select-none rounded-lg transition-all hover:brightness-90 active:scale-[0.98]': true,
+								}"
+								@click.capture="
+									(event: MouseEvent) => {
+										if (event.shiftKey && !selectMode) {
+											event.stopPropagation()
+											emit('handleCardClick', instance.id, event)
+										}
+									}
+								"
+							>
+								<Instance
+									:instance="instance"
+									:disabled="selectMode || isDragging"
+									:variant="displayMode === 'cards' ? 'library' : 'standard'"
+									:class="{
+										'opacity-50': selectMode && !selectedInstanceIds.has(instance.id),
+									}"
+								/>
+							</div>
+						</template>
+						<template #overlay>
+							<div
+								class="absolute right-2 bottom-2 z-10 transition-opacity"
+								:class="
+									selectMode && selectedInstanceIds.has(instance.id)
+										? ''
+										: 'opacity-0 group-hover:opacity-100'
+								"
+								@click.stop="emit('handleCheckboxClick', instance.id, $event)"
+							>
+								<Checkbox :model-value="selectedInstanceIds.has(instance.id)" />
+							</div>
+							<div
+								v-if="!selectMode"
+								class="absolute right-2 top-2 opacity-0 group-hover:opacity-100 transition-opacity"
+								@click.stop="
+									emit('handleContextMenu', $event as MouseEvent, instance.id, props.sectionKey)
+								"
+							>
+								<Button type="quiet" size="2xs" circular icon-only
+									><slot name="moreIcon" />
+								</Button>
+							</div>
+						</template>
+					</DraggableInstanceCard>
+
+					<div v-else class="group relative">
+						<div
+							class="relative cursor-pointer select-none rounded-lg transition-all hover:brightness-90 active:scale-[0.98]"
+							@click.capture="
+								(event: MouseEvent) => {
+									if (event.shiftKey && !selectMode) {
+										event.stopPropagation()
+										emit('handleCardClick', instance.id, event)
+									}
+								}
+							"
+							@click="emit('handleCardClick', instance.id, $event as MouseEvent)"
+							@mousedown="!selectMode && emit('startLongPress', instance.id)"
+							@mouseup="emit('cancelLongPress')"
+							@mouseleave="emit('cancelLongPress')"
+							@touchstart="!selectMode && emit('startLongPress', instance.id)"
+							@touchend="emit('cancelLongPress')"
+							@touchcancel="emit('cancelLongPress')"
+						>
+							<div :class="{ 'pointer-events-none': selectMode }">
+								<Instance
+									:instance="instance"
+									:disabled="selectMode"
+									:variant="displayMode === 'cards' ? 'library' : 'standard'"
+									:class="{
+										'opacity-50': selectMode && !selectedInstanceIds.has(instance.id),
+									}"
+									@contextmenu.prevent.stop="
+										(event: MouseEvent) =>
+											emit('handleContextMenu', event, instance.id, props.sectionKey)
+									"
+								/>
+							</div>
+						</div>
+						<div
+							class="absolute right-2 bottom-2 z-10 transition-opacity"
+							:class="
+								selectMode && selectedInstanceIds.has(instance.id)
+									? ''
+									: 'opacity-0 group-hover:opacity-100'
+							"
+							@click.stop="emit('handleCheckboxClick', instance.id, $event)"
+						>
+							<Checkbox :model-value="selectedInstanceIds.has(instance.id)" />
+						</div>
+						<div
+							v-if="!selectMode"
+							class="absolute right-2 top-2 opacity-0 group-hover:opacity-100 transition-opacity"
+							@click.stop="
+								emit('handleContextMenu', $event as MouseEvent, instance.id, props.sectionKey)
+							"
+						>
+							<Button type="quiet" size="2xs" circular icon-only><slot name="moreIcon" /> </Button>
+						</div>
+					</div>
+				</template>
+				<p
+					v-if="instances.length === 0"
+					class="col-span-full m-0 pt-1 pl-0.5 text-base font-base text-[var(--color-text-tertiary)] opacity-80"
+				>
+					{{ formatMessage(messages.emptyGroup) }}
+				</p>
+			</section>
+		</div>
+	</div>
+
+	<ContextMenu ref="groupOptions" @option-clicked="handleGroupOption">
+		<template #new_instance>
+			<PlusIcon />
+			{{ formatMessage(messages.newInstance) }}
+		</template>
+		<template #add_instances>
+			<PlusIcon />
+			{{ formatMessage(messages.addToGroup) }}
+		</template>
+		<template #edit_name>
+			<EditIcon />
+			{{ formatMessage(messages.editGroupName) }}
+		</template>
+		<template #delete_group>
+			<TrashIcon />
+			{{ formatMessage(messages.deleteGroup) }}
+		</template>
+	</ContextMenu>
+
+	<NewModal
+		ref="confirmDeleteGroupModal"
+		:header="formatMessage(messages.deleteGroup)"
+		fade="danger"
+		width="500px"
+	>
+		<p class="m-0 text-base text-[var(--color-text-default)]">
+			{{ formatMessage(messages.deleteGroupDescription) }}
+		</p>
+
+		<template #actions>
+			<div class="flex justify-end gap-2">
+				<Button type="outlined" @click="confirmDeleteGroupModal?.hide()">
+					<XIcon />
+					{{ formatMessage(commonMessages.cancelButton) }}
+				</Button>
+				<Button type="colored" color="red" :disabled="deletingGroup" @click="removeGroup">
+					<TrashIcon />
+					{{ formatMessage(messages.deleteGroup) }}
+				</Button>
+			</div>
+		</template>
+	</NewModal>
+</template>

apps/app-frontend/src/components/ui/minecraft-crash-logs.ts

@@ -0,0 +1,62 @@
+export interface CrashLogFile {
+	age: number
+	filename: string
+	log_type: 'InfoLog' | 'CrashReport' | 'JvmCrash' | 'LauncherLog'
+	output?: string | null
+}
+
+const RUN_ASSOCIATION_WINDOW_SECONDS = 3 * 60
+
+export function shouldUseLogShareAutoAnalysis(settings: {
+	ai_source: 'logshare' | 'custom'
+	auto_upload: boolean
+	no_storage?: boolean
+}): boolean {
+	return settings.ai_source === 'logshare' && settings.auto_upload
+}
+
+function isRelevantLog(file: CrashLogFile): boolean {
+	const lower = file.filename.toLowerCase()
+	if (file.log_type === 'CrashReport') return lower.endsWith('.txt')
+	if (file.log_type === 'JvmCrash') return lower.startsWith('hs_err') && lower.endsWith('.log')
+	return ['latest.log', 'debug.log', 'launcher_log.txt', 'latest_stdout.log'].includes(lower)
+}
+
+export function selectCrashLogFiles(files: CrashLogFile[]): CrashLogFile[] {
+	const sorted = files.filter(isRelevantLog).sort((left, right) => right.age - left.age)
+	const anchor = sorted[0]?.age
+	if (anchor === undefined) return []
+
+	const singletonTypes = new Set<CrashLogFile['log_type']>()
+	return sorted.filter((file) => {
+		if (anchor - file.age > RUN_ASSOCIATION_WINDOW_SECONDS) return false
+		if (file.log_type !== 'CrashReport' && file.log_type !== 'JvmCrash') return true
+		if (singletonTypes.has(file.log_type)) return false
+		singletonTypes.add(file.log_type)
+		return true
+	})
+}
+
+export function crashLogKey(file: CrashLogFile): string {
+	return `${file.log_type}:${file.filename}`
+}
+
+export function crashLogLabel(file: CrashLogFile): string {
+	return file.log_type === 'CrashReport' ? `crash-reports/${file.filename}` : file.filename
+}
+
+export function preferredCrashLogKey(files: CrashLogFile[]): string {
+	const preferred =
+		files.find((file) => file.log_type === 'CrashReport') ??
+		files.find((file) => file.log_type === 'JvmCrash') ??
+		files.find((file) => file.filename.toLowerCase() === 'latest.log') ??
+		files[0]
+	return preferred ? crashLogKey(preferred) : ''
+}
+
+export function combineCrashLogs(files: CrashLogFile[]): string {
+	return files
+		.filter((file) => file.output)
+		.map((file) => `===== ${crashLogLabel(file)} =====\n${file.output}`)
+		.join('\n\n')
+}

apps/app-frontend/src/components/ui/modal/InstanceGroupModal.vue

@@ -0,0 +1,313 @@
+<template>
+	<NewModal ref="modal" no-padding scrollable actions-divider max-width="560px" width="560px">
+		<template #title>
+			<span class="text-2xl font-semibold text-[var(--color-text-primary)]">
+				{{
+					existingGroupName
+						? formatMessage(messages.addToGroupTitle, { groupName: existingGroupName })
+						: formatMessage(messages.header)
+				}}
+			</span>
+		</template>
+
+		<template v-if="!existingGroupName">
+			<div class="flex flex-col gap-2.5 p-6">
+				<label for="new-group-name" class="font-semibold text-[var(--color-text-primary)]">
+					{{ formatMessage(messages.groupName) }}
+				</label>
+				<StyledInput
+					id="new-group-name"
+					ref="groupNameInput"
+					v-model="newGroupName"
+					:placeholder="formatMessage(messages.groupNamePlaceholder)"
+					:maxlength="32"
+					@click="groupNameInput?.select()"
+				/>
+			</div>
+
+			<div class="h-px bg-divider" />
+		</template>
+
+		<div class="flex h-[400px] flex-col gap-3 overflow-y-auto bg-surface-2 py-4">
+			<div class="px-6">
+				<StyledInput
+					v-model="newGroupSearch"
+					:icon="SearchIcon"
+					:placeholder="formatMessage(messages.searchInstance)"
+					class="w-full"
+				/>
+			</div>
+
+			<div
+				v-if="newGroupInstances.length === 0"
+				class="flex items-center justify-center py-12 text-[var(--color-text-tertiary)]"
+			>
+				{{ formatMessage(messages.noInstancesFound) }}
+			</div>
+			<div v-else class="flex flex-col gap-1">
+				<div
+					v-for="instance in newGroupInstances"
+					:key="instance.id"
+					class="flex items-center justify-between gap-4 px-6 py-1.5 hover:bg-surface-3"
+					:class="{ 'opacity-60': selectedNewGroupInstanceIds.has(instance.id) }"
+				>
+					<div class="flex min-w-0 items-center gap-2.5">
+						<InstanceIcon
+							:icon-path="instance.icon_path"
+							:instance-id="instance.id"
+							:loader="instance.loader"
+							class="!size-[2rem] !rounded-md"
+						/>
+						<div class="flex min-w-0 items-center gap-2">
+							<span class="truncate font-semibold text-[var(--color-text-primary)]">{{
+								instance.name
+							}}</span>
+							<TagItem v-if="instance.groups && instance.groups.length > 0" class="shrink-0">
+								{{ getGroupName(instance.groups[0]) }}
+							</TagItem>
+						</div>
+					</div>
+					<Button
+						:type="selectedNewGroupInstanceIds.has(instance.id) ? 'outlined' : 'base'"
+						@click="toggleNewGroupInstance(instance.id)"
+					>
+						<CheckIcon v-if="selectedNewGroupInstanceIds.has(instance.id)" />
+						{{
+							formatMessage(
+								selectedNewGroupInstanceIds.has(instance.id) ? messages.added : messages.add,
+							)
+						}}
+					</Button>
+				</div>
+			</div>
+		</div>
+
+		<template #actions>
+			<div class="flex items-center justify-end gap-2">
+				<Button type="outlined" @click="modal?.hide()">
+					<XIcon />
+					{{ formatMessage(messages.cancel) }}
+				</Button>
+				<Button
+					type="colored"
+					color="brand"
+					:disabled="existingGroupName ? !canSaveGroups : !canCreateGroup"
+					@click="existingGroupName ? handleSaveGroups() : handleCreateGroup()"
+				>
+					<SpinnerIcon v-if="creatingGroup" class="animate-spin" />
+					<CheckIcon v-else-if="existingGroupName" />
+					<PlusIcon v-else />
+					{{ formatMessage(existingGroupName ? messages.saveChanges : messages.createGroup) }}
+				</Button>
+			</div>
+		</template>
+	</NewModal>
+</template>
+
+<script setup lang="ts">
+import { CheckIcon, PlusIcon, SearchIcon, SpinnerIcon, XIcon } from '@modrinth/assets'
+import { Button, defineMessages, NewModal, StyledInput, TagItem, useVIntl } from '@modrinth/ui'
+import { computed, ref } from 'vue'
+
+import InstanceIcon from '@/components/ui/InstanceIcon.vue'
+import { FAVORITES_GROUP_ID } from '@/composables/useInstanceGroups'
+import { list } from '@/helpers/instance'
+import { create_group, list_groups, set_group_memberships } from '@/helpers/instance-groups'
+import type { GameInstance } from '@/helpers/types'
+
+const { formatMessage } = useVIntl()
+
+const props = defineProps<{
+	instanceIds: string[]
+	existingGroupName?: string
+	existingGroupId?: string
+}>()
+
+const emit = defineEmits<{
+	(e: 'applied'): void
+}>()
+
+const messages = defineMessages({
+	header: {
+		id: 'app.instances.batch-edit-groups.header',
+		defaultMessage: 'Create group',
+	},
+	addToGroupTitle: {
+		id: 'app.instances.batch-edit-groups.add-to-group-title',
+		defaultMessage: 'Add instances to "{groupName}"',
+	},
+	groupName: {
+		id: 'app.instances.batch-edit-groups.group-name',
+		defaultMessage: 'Group name',
+	},
+	groupNamePlaceholder: {
+		id: 'app.instances.batch-edit-groups.group-name-placeholder',
+		defaultMessage: 'Enter group name',
+	},
+	searchInstance: {
+		id: 'app.instances.batch-edit-groups.search-instance',
+		defaultMessage: 'Search instances',
+	},
+	noInstancesFound: {
+		id: 'app.instances.batch-edit-groups.no-instances-found',
+		defaultMessage: 'No instances found',
+	},
+	add: {
+		id: 'app.instances.batch-edit-groups.add',
+		defaultMessage: 'Add',
+	},
+	added: {
+		id: 'app.instances.batch-edit-groups.added',
+		defaultMessage: 'Added',
+	},
+	cancel: {
+		id: 'app.instances.batch-edit-groups.cancel',
+		defaultMessage: 'Cancel',
+	},
+	createGroup: {
+		id: 'app.instances.batch-edit-groups.create',
+		defaultMessage: 'Create group',
+	},
+	pinnedGroupName: {
+		id: 'app.instances.group.pinned',
+		defaultMessage: 'Pinned',
+	},
+	saveChanges: {
+		id: 'app.instances.batch-edit-groups.save-changes',
+		defaultMessage: 'Save',
+	},
+})
+
+const modal = ref<InstanceType<typeof NewModal>>()
+const groupNameInput = ref<InstanceType<typeof StyledInput>>()
+const newGroupName = ref('')
+const newGroupSearch = ref('')
+const creatingGroup = ref(false)
+const allInstances = ref<GameInstance[]>([])
+const groupNameMap = ref(new Map<string, string>())
+const selectedNewGroupInstanceIds = ref(new Set<string>())
+
+const canCreateGroup = computed(() => newGroupName.value.trim().length > 0)
+
+const canSaveGroups = computed(() => {
+	if (!props.existingGroupName) return false
+	const groupId = props.existingGroupId
+	if (!groupId) return false
+	return allInstances.value.some((instance) => {
+		const isSelected = selectedNewGroupInstanceIds.value.has(instance.id)
+		const hasGroup = (instance.groups || []).includes(groupId)
+		return isSelected !== hasGroup
+	})
+})
+
+const newGroupInstances = computed(() => {
+	const search = newGroupSearch.value.toLowerCase()
+	return allInstances.value.filter((instance) => {
+		if (!search) return true
+		return instance.name.toLowerCase().includes(search)
+	})
+})
+
+function getGroupName(groupId: string) {
+	if (groupId === FAVORITES_GROUP_ID) {
+		return formatMessage(messages.pinnedGroupName)
+	}
+	return groupNameMap.value.get(groupId) || groupId
+}
+
+function show(ids?: string[]) {
+	newGroupSearch.value = ''
+	creatingGroup.value = false
+	Promise.all([list(), list_groups()]).then(([instances, groups]) => {
+		allInstances.value = instances as GameInstance[]
+		const map = new Map<string, string>()
+		for (const g of groups) {
+			map.set(g.id, g.name)
+		}
+		groupNameMap.value = map
+
+		if (!props.existingGroupName) {
+			const customGroups = groups.filter((g: { id: string }) => g.id !== 'group:favorites')
+			let groupNumber = customGroups.length + 1
+			const existingNames = new Set(groups.map((g: { name: string }) => g.name.toLowerCase()))
+			while (existingNames.has(`group ${groupNumber}`)) {
+				groupNumber++
+			}
+			newGroupName.value = `Group ${groupNumber}`
+		}
+
+		if (props.existingGroupName) {
+			const groupId = props.existingGroupId
+			selectedNewGroupInstanceIds.value = new Set(
+				allInstances.value.filter((i) => (i.groups || []).includes(groupId || '')).map((i) => i.id),
+			)
+		} else {
+			selectedNewGroupInstanceIds.value = new Set(ids ?? props.instanceIds)
+		}
+	})
+	modal.value?.show()
+}
+
+function toggleNewGroupInstance(instanceId: string) {
+	const next = new Set(selectedNewGroupInstanceIds.value)
+	if (next.has(instanceId)) {
+		next.delete(instanceId)
+	} else {
+		next.add(instanceId)
+	}
+	selectedNewGroupInstanceIds.value = next
+}
+
+async function handleCreateGroup() {
+	const name = newGroupName.value.trim()
+	if (!name || selectedNewGroupInstanceIds.value.size === 0) return
+
+	creatingGroup.value = true
+
+	const group = await create_group(name).catch(() => null)
+	if (!group) {
+		creatingGroup.value = false
+		return
+	}
+
+	if (selectedNewGroupInstanceIds.value.size > 0) {
+		const updates = [...selectedNewGroupInstanceIds.value].map((instanceId) => ({
+			instance_id: instanceId,
+			group_ids: [group.id],
+		}))
+		await set_group_memberships(updates).catch(() => {})
+	}
+
+	creatingGroup.value = false
+	modal.value?.hide()
+	emit('applied')
+}
+
+async function handleSaveGroups() {
+	if (!props.existingGroupName) return
+
+	creatingGroup.value = true
+	const groupId = props.existingGroupId
+
+	const changedInstances = allInstances.value.filter((instance) => {
+		const isSelected = selectedNewGroupInstanceIds.value.has(instance.id)
+		const hasGroup = (instance.groups || []).includes(groupId || '')
+		return isSelected !== hasGroup
+	})
+
+	const updates = changedInstances.map((instance) => {
+		const isSelected = selectedNewGroupInstanceIds.value.has(instance.id)
+		return {
+			instance_id: instance.id,
+			group_ids: isSelected ? [groupId!] : [],
+		}
+	})
+	await set_group_memberships(updates).catch(() => {})
+
+	creatingGroup.value = false
+	modal.value?.hide()
+	emit('applied')
+}
+
+defineExpose({ show })
+</script>

apps/app-frontend/src/components/ui/settings/DefaultInstanceSettings.vue

@@ -6,6 +6,8 @@ import { ref, watch } from 'vue'
 import { get, set } from '@/helpers/settings.ts'
 
 import CrashAnalysisAISettings from './CrashAnalysisAISettings.vue'
+import LogShareSettings from './LogShareSettings.vue'
+import SharedLogsSettings from './SharedLogsSettings.vue'
 import SettingsRow from './SettingsRow.vue'
 import SettingsSection from './SettingsSection.vue'
 
@@ -38,6 +40,26 @@ const messages = defineMessages({
 		id: 'app.settings.defaults.maximize-window.unsupported',
 		defaultMessage: 'Not supported on this operating system.',
 	},
+	windowTitleEnabled: {
+		id: 'app.settings.defaults.window-title.enabled',
+		defaultMessage: 'Custom Minecraft window title',
+	},
+	windowTitleEnabledDescription: {
+		id: 'app.settings.defaults.window-title.enabled-description',
+		defaultMessage: 'Allow instances to customize the Minecraft window title.',
+	},
+	defaultWindowTitle: {
+		id: 'app.settings.defaults.window-title.default',
+		defaultMessage: 'Default window title',
+	},
+	defaultWindowTitleDescription: {
+		id: 'app.settings.defaults.window-title.default-description',
+		defaultMessage: 'Used when an instance leaves its window title empty.',
+	},
+	defaultWindowTitlePlaceholder: {
+		id: 'app.settings.defaults.window-title.default-placeholder',
+		defaultMessage: 'Enter default window title...',
+	},
 	width: { id: 'app.settings.defaults.width', defaultMessage: 'Width' },
 	widthDescription: {
 		id: 'app.settings.defaults.width-description',
@@ -212,6 +234,36 @@ watch(
 					/>
 				</template>
 			</SettingsRow>
+			<SettingsRow>
+				<template #label>
+					<span id="settings-target-defaults-window-title" tabindex="-1">
+						{{ formatMessage(messages.windowTitleEnabled) }}
+					</span>
+				</template>
+				<template #description>{{
+					formatMessage(messages.windowTitleEnabledDescription)
+				}}</template>
+				<template #control>
+					<Toggle id="custom-window-title-enabled" v-model="settings.custom_window_title_enabled" />
+				</template>
+			</SettingsRow>
+			<SettingsRow stacked>
+				<template #label>{{ formatMessage(messages.defaultWindowTitle) }}</template>
+				<template #description>{{
+					formatMessage(messages.defaultWindowTitleDescription)
+				}}</template>
+				<template #control>
+					<StyledInput
+						id="default-window-title"
+						v-model="settings.default_window_title"
+						:disabled="!settings.custom_window_title_enabled"
+						autocomplete="off"
+						type="text"
+						:placeholder="formatMessage(messages.defaultWindowTitlePlaceholder)"
+						wrapper-class="w-full"
+					/>
+				</template>
+			</SettingsRow>
 		</SettingsSection>
 
 		<SettingsSection>
@@ -341,5 +393,7 @@ watch(
 		</SettingsSection>
 
 		<CrashAnalysisAISettings />
+		<LogShareSettings />
+		<SharedLogsSettings />
 	</div>
 </template>

apps/app-frontend/src/components/ui/settings/KeybindSettings.vue

@@ -0,0 +1,231 @@
+<script setup lang="ts">
+import {
+	defineMessages,
+	type KeyBinding,
+	KeybindingChips,
+	KeybindingModal,
+	Toggle,
+	useVIntl,
+} from '@modrinth/ui'
+import { computed, ref } from 'vue'
+
+import { getNavShortcutEnabled, setNavShortcutEnabled } from '@/helpers/nav-shortcut-state'
+import { getQuickScrollEnabled, setQuickScrollEnabled } from '@/helpers/scroll-top-state'
+import { NAV_ACTIONS, SCROLL_ACTIONS, type ShortcutAction } from '@/helpers/shortcut-actions'
+import {
+	buildConflicts,
+	clearStoredBinding,
+	resolveAllBindings,
+	storeBinding,
+} from '@/helpers/shortcut-bindings'
+import { useTheming } from '@/store/theme'
+
+import SettingsRow from './SettingsRow.vue'
+import SettingsSection from './SettingsSection.vue'
+
+const { formatMessage } = useVIntl()
+const themeStore = useTheming()
+
+themeStore.quickScrollEnabled = getQuickScrollEnabled()
+themeStore.shortcutBindings = resolveAllBindings()
+for (const action of NAV_ACTIONS) {
+	themeStore[action.enabledField] = getNavShortcutEnabled(action.id)
+}
+
+const messages = defineMessages({
+	scrollTitle: {
+		id: 'app.shortcut-settings.scroll-title',
+		defaultMessage: 'Quick scrolling',
+	},
+	scrollDescription: {
+		id: 'app.shortcut-settings.scroll-description',
+		defaultMessage: 'Move through long pages with the keyboard.',
+	},
+	enable: { id: 'app.shortcut-settings.enable', defaultMessage: 'Enable quick scrolling' },
+	navTitle: {
+		id: 'app.shortcut-settings.nav-title',
+		defaultMessage: 'Navigation shortcuts',
+	},
+	navDescription: {
+		id: 'app.shortcut-settings.nav-description',
+		defaultMessage: 'Jump to a menu item with its shortcut. Each shortcut is off until enabled.',
+	},
+	changeShortcut: {
+		id: 'app.shortcut-settings.change-shortcut',
+		defaultMessage: 'Change the shortcut for {action}',
+	},
+})
+
+function actionLabel(action: ShortcutAction) {
+	return formatMessage(action.label)
+}
+
+function actionDescription(action: ShortcutAction) {
+	return formatMessage(action.description)
+}
+
+function bindingFor(action: ShortcutAction): KeyBinding {
+	return themeStore.shortcutBindings[action.id] ?? action.defaultBinding
+}
+
+function sameBinding(left: KeyBinding, right: KeyBinding) {
+	return (
+		left.device === right.device &&
+		left.code === right.code &&
+		left.mod === right.mod &&
+		left.shift === right.shift &&
+		left.alt === right.alt
+	)
+}
+
+const editing = ref<ShortcutAction | null>(null)
+const keybindingModal = ref<InstanceType<typeof KeybindingModal>>()
+
+const editingLabel = computed(() => (editing.value ? actionLabel(editing.value) : undefined))
+const editingBinding = computed(() => (editing.value ? bindingFor(editing.value) : null))
+const editingDefault = computed(() => editing.value?.defaultBinding ?? null)
+const editingConflicts = computed(() =>
+	editing.value
+		? buildConflicts(editing.value.id, (id) => {
+				const action = [...SCROLL_ACTIONS, ...NAV_ACTIONS].find((candidate) => candidate.id === id)
+				return action ? actionLabel(action) : id
+			})
+		: [],
+)
+
+function openShortcut(action: ShortcutAction) {
+	editing.value = action
+	keybindingModal.value?.show()
+}
+
+function saveShortcut(binding: KeyBinding) {
+	const action = editing.value
+	if (!action) return
+
+	// A combination matching the default is stored as "not changed", so a later
+	// change to the default still reaches this shortcut.
+	if (sameBinding(binding, action.defaultBinding)) clearStoredBinding(action.id)
+	else storeBinding(action.id, binding)
+
+	themeStore.shortcutBindings = { ...themeStore.shortcutBindings, [action.id]: binding }
+}
+
+function toggleQuickScroll(value: unknown) {
+	themeStore.quickScrollEnabled = !!value
+	setQuickScrollEnabled(themeStore.quickScrollEnabled)
+}
+
+function toggleNavShortcut(action: ShortcutAction, value: unknown) {
+	themeStore[action.enabledField] = !!value
+	setNavShortcutEnabled(action.id, !!value)
+}
+</script>
+
+<template>
+	<div class="flex flex-col gap-6">
+		<SettingsSection>
+			<template #header>
+				<h2 class="m-0 text-lg font-semibold text-[var(--color-text-primary)]">
+					{{ formatMessage(messages.scrollTitle) }}
+				</h2>
+				<p class="m-0 mt-1 text-sm leading-relaxed text-[var(--color-text-tertiary)]">
+					{{ formatMessage(messages.scrollDescription) }}
+				</p>
+			</template>
+			<SettingsRow>
+				<template #label>
+					<span id="settings-target-shortcuts-enable" tabindex="-1">
+						{{ formatMessage(messages.enable) }}
+					</span>
+				</template>
+				<template #control>
+					<Toggle
+						id="quick-scroll-enabled"
+						:model-value="themeStore.quickScrollEnabled"
+						@update:model-value="toggleQuickScroll"
+					/>
+				</template>
+			</SettingsRow>
+			<SettingsRow v-for="action in SCROLL_ACTIONS" :key="action.id">
+				<template #label>
+					<span :id="`settings-target-${action.id}`" tabindex="-1">{{ actionLabel(action) }}</span>
+				</template>
+				<template #description>{{ actionDescription(action) }}</template>
+				<template #control>
+					<button
+						type="button"
+						class="keybinding-trigger"
+						:aria-label="formatMessage(messages.changeShortcut, { action: actionLabel(action) })"
+						@click="openShortcut(action)"
+					>
+						<KeybindingChips :binding="bindingFor(action)" />
+					</button>
+				</template>
+			</SettingsRow>
+		</SettingsSection>
+
+		<SettingsSection>
+			<template #header>
+				<h2
+					id="settings-target-shortcuts-nav"
+					tabindex="-1"
+					class="m-0 text-lg font-semibold text-[var(--color-text-primary)]"
+				>
+					{{ formatMessage(messages.navTitle) }}
+				</h2>
+				<p class="m-0 mt-1 text-sm leading-relaxed text-[var(--color-text-tertiary)]">
+					{{ formatMessage(messages.navDescription) }}
+				</p>
+			</template>
+			<SettingsRow v-for="action in NAV_ACTIONS" :key="action.id">
+				<template #label>{{ actionLabel(action) }}</template>
+				<template #description>{{ actionDescription(action) }}</template>
+				<template #control>
+					<div class="flex flex-wrap items-center justify-end gap-3">
+						<button
+							type="button"
+							class="keybinding-trigger"
+							:aria-label="formatMessage(messages.changeShortcut, { action: actionLabel(action) })"
+							@click="openShortcut(action)"
+						>
+							<KeybindingChips :binding="bindingFor(action)" />
+						</button>
+						<Toggle
+							:id="`nav-shortcut-${action.id}`"
+							:model-value="themeStore[action.enabledField]"
+							@update:model-value="(value) => toggleNavShortcut(action, value)"
+						/>
+					</div>
+				</template>
+			</SettingsRow>
+		</SettingsSection>
+
+		<KeybindingModal
+			ref="keybindingModal"
+			:action-label="editingLabel"
+			:binding="editingBinding"
+			:default-binding="editingDefault"
+			:conflicts="editingConflicts"
+			@save="saveShortcut"
+		/>
+	</div>
+</template>
+
+<style scoped>
+.keybinding-trigger {
+	cursor: pointer;
+	border-radius: var(--radius-md);
+	border: 1px solid transparent;
+	background: transparent;
+	padding: 0.25rem 0.375rem;
+	transition:
+		background-color 0.15s ease,
+		border-color 0.15s ease;
+}
+
+.keybinding-trigger:hover,
+.keybinding-trigger:focus-visible {
+	border-color: var(--surface-4);
+	background: var(--surface-3);
+}
+</style>

apps/app-frontend/src/components/ui/settings/LogExportModal.vue

@@ -0,0 +1,192 @@
+<script setup lang="ts">
+import { DownloadIcon, FolderOpenIcon, XIcon } from '@modrinth/assets'
+import {
+	Button,
+	Checkbox,
+	Combobox,
+	commonMessages,
+	defineMessages,
+	injectNotificationManager,
+	injectPopupNotificationManager,
+	NewModal,
+	useVIntl,
+} from '@modrinth/ui'
+import { computed, ref } from 'vue'
+
+import { exportLauncherLogs, highlightInFolder } from '@/helpers/utils'
+
+const { formatMessage } = useVIntl()
+const { handleError } = injectNotificationManager()
+const popupNotificationManager = injectPopupNotificationManager()
+
+const modal = ref<InstanceType<typeof NewModal>>()
+const exporting = ref(false)
+const selectedRange = ref<'last30Minutes' | 'last2Hours' | 'all'>('last2Hours')
+const selectedLevel = ref<'all' | 'debug' | 'info'>('all')
+const includeSystemInfo = ref(true)
+const includeInstanceLogs = ref(false)
+const includeCrashAnalysis = ref(false)
+
+const messages = defineMessages({
+	title: { id: 'app.settings.logs.export.modal.title', defaultMessage: 'Export logs' },
+	description: {
+		id: 'app.settings.logs.export.modal.description',
+		defaultMessage:
+			'Choose how much detail to include. Exported logs have access tokens, Minecraft tokens, and IP addresses replaced with placeholders.',
+	},
+	rangeLabel: { id: 'app.settings.logs.export.modal.range', defaultMessage: 'Time range' },
+	rangeLast30Minutes: {
+		id: 'app.settings.logs.export.modal.range.30-minutes',
+		defaultMessage: 'Last 30 minutes',
+	},
+	rangeLast2Hours: {
+		id: 'app.settings.logs.export.modal.range.2-hours',
+		defaultMessage: 'Last 2 hours',
+	},
+	rangeAll: { id: 'app.settings.logs.export.modal.range.all', defaultMessage: 'All sessions' },
+	levelLabel: { id: 'app.settings.logs.export.modal.level', defaultMessage: 'Log level' },
+	levelAll: { id: 'app.settings.logs.export.modal.level.all', defaultMessage: 'All levels' },
+	levelDebug: {
+		id: 'app.settings.logs.export.modal.level.debug',
+		defaultMessage: 'Debug and above',
+	},
+	levelInfo: { id: 'app.settings.logs.export.modal.level.info', defaultMessage: 'Info and above' },
+	extrasLabel: {
+		id: 'app.settings.logs.export.modal.extras',
+		defaultMessage: 'Additional information',
+	},
+	systemInfo: {
+		id: 'app.settings.logs.export.modal.system-info',
+		defaultMessage: 'System and environment summary',
+	},
+	instanceLogs: {
+		id: 'app.settings.logs.export.modal.instance-logs',
+		defaultMessage: 'Most recent instance log',
+	},
+	crashAnalysis: {
+		id: 'app.settings.logs.export.modal.crash-analysis',
+		defaultMessage: 'Crash analysis (when a crash is detected)',
+	},
+	cancel: { id: 'app.settings.logs.export.modal.cancel', defaultMessage: 'Cancel' },
+	confirm: { id: 'app.settings.logs.export.modal.confirm', defaultMessage: 'Export' },
+	exportedTitle: {
+		id: 'app.settings.logs.export.notification-title',
+		defaultMessage: 'Logs exported',
+	},
+	exportedText: {
+		id: 'app.settings.logs.export.notification-text',
+		defaultMessage: 'The log archive was saved to {path}',
+	},
+})
+
+const rangeOptions = computed(() => [
+	{ value: 'last30Minutes', label: formatMessage(messages.rangeLast30Minutes) },
+	{ value: 'last2Hours', label: formatMessage(messages.rangeLast2Hours) },
+	{ value: 'all', label: formatMessage(messages.rangeAll) },
+])
+
+const levelOptions = computed(() => [
+	{ value: 'all', label: formatMessage(messages.levelAll) },
+	{ value: 'debug', label: formatMessage(messages.levelDebug) },
+	{ value: 'info', label: formatMessage(messages.levelInfo) },
+])
+
+async function exportLogs() {
+	exporting.value = true
+	try {
+		const path = await exportLauncherLogs({
+			range: selectedRange.value,
+			level: selectedLevel.value,
+			includeSystemInfo: includeSystemInfo.value,
+			includeInstanceLogs: includeInstanceLogs.value,
+			includeCrashAnalysis: includeCrashAnalysis.value,
+		})
+
+		if (path) {
+			modal.value?.hide()
+			popupNotificationManager.addPopupNotification({
+				title: formatMessage(messages.exportedTitle),
+				text: formatMessage(messages.exportedText, { path }),
+				type: 'success',
+				buttons: [
+					{
+						label: formatMessage(commonMessages.openInFolderButton),
+						icon: FolderOpenIcon,
+						action: () => highlightInFolder(path).catch(handleError),
+					},
+				],
+			})
+		}
+	} catch (error) {
+		handleError(error)
+	} finally {
+		exporting.value = false
+	}
+}
+
+defineExpose({
+	show: () => modal.value?.show(),
+	hide: () => modal.value?.hide(),
+})
+</script>
+
+<template>
+	<NewModal
+		ref="modal"
+		:header="formatMessage(messages.title)"
+		:closable="true"
+		:close-on-click-outside="true"
+		width="40rem"
+		scrollable
+	>
+		<div class="flex flex-col gap-4">
+			<p class="m-0">{{ formatMessage(messages.description) }}</p>
+
+			<div class="flex flex-col gap-2">
+				<span class="font-semibold text-[var(--color-text-primary)]">{{
+					formatMessage(messages.rangeLabel)
+				}}</span>
+				<Combobox
+					id="log-export-range"
+					v-model="selectedRange"
+					:name="formatMessage(messages.rangeLabel)"
+					:options="rangeOptions"
+				/>
+			</div>
+
+			<div class="flex flex-col gap-2">
+				<span class="font-semibold text-[var(--color-text-primary)]">{{
+					formatMessage(messages.levelLabel)
+				}}</span>
+				<Combobox
+					id="log-export-level"
+					v-model="selectedLevel"
+					:name="formatMessage(messages.levelLabel)"
+					:options="levelOptions"
+				/>
+			</div>
+
+			<div class="flex flex-col gap-2">
+				<span class="font-semibold text-[var(--color-text-primary)]">{{
+					formatMessage(messages.extrasLabel)
+				}}</span>
+				<Checkbox v-model="includeSystemInfo" :label="formatMessage(messages.systemInfo)" />
+				<Checkbox v-model="includeInstanceLogs" :label="formatMessage(messages.instanceLogs)" />
+				<Checkbox v-model="includeCrashAnalysis" :label="formatMessage(messages.crashAnalysis)" />
+			</div>
+		</div>
+
+		<template #actions>
+			<div class="flex justify-end gap-2">
+				<Button type="outlined" :disabled="exporting" @click="modal?.hide()"
+					><XIcon />
+					{{ formatMessage(messages.cancel) }}
+				</Button>
+				<Button type="colored" color="brand" :disabled="exporting" @click="exportLogs"
+					><DownloadIcon />
+					{{ formatMessage(messages.confirm) }}
+				</Button>
+			</div>
+		</template>
+	</NewModal>
+</template>

apps/app-frontend/src/components/ui/settings/LogShareSettings.vue

@@ -0,0 +1,354 @@
+<script setup lang="ts">
+import { Combobox, defineMessages, injectNotificationManager, Toggle, useVIntl } from '@modrinth/ui'
+import { computed, onMounted, ref } from 'vue'
+
+import { type AIState, getAIState, sharedAIState } from '@/helpers/ai'
+import {
+	get_crash_analysis_ai_settings,
+	get_log_share_settings,
+	update_crash_analysis_ai_settings,
+	update_log_share_settings,
+} from '@/helpers/logs'
+
+import SettingsRow from './SettingsRow.vue'
+import SettingsSection from './SettingsSection.vue'
+
+type CrashAISettings = {
+	enabled: boolean
+	provider_id: string
+	model_id: string
+	ai_source: 'logshare' | 'custom'
+}
+
+type LogShareSettings = {
+	share_provider: 'logshare' | 'mclogs'
+	ai_source: string
+	auto_upload: boolean
+	multi_file: boolean
+	no_storage: boolean
+	show_progress: boolean
+}
+
+const { formatMessage } = useVIntl()
+const { handleError } = injectNotificationManager()
+const settings = ref<LogShareSettings>({
+	share_provider: 'logshare',
+	ai_source: 'logshare',
+	auto_upload: true,
+	multi_file: true,
+	no_storage: false,
+	show_progress: true,
+})
+const aiSettings = ref<CrashAISettings>({
+	enabled: false,
+	provider_id: '',
+	model_id: '',
+	ai_source: 'logshare',
+})
+const loading = ref(true)
+const saving = ref(false)
+
+const messages = defineMessages({
+	title: { id: 'app.log-share.settings.title', defaultMessage: 'Log sharing & AI analysis' },
+	description: {
+		id: 'app.log-share.settings.description',
+		defaultMessage:
+			'Share crash diagnostics with LogShare for a structured summary and optional AI analysis. LogShare is preferred; mclo.gs is used as a fallback.',
+	},
+	shareProvider: {
+		id: 'app.log-share.settings.share-provider',
+		defaultMessage: 'Log sharing service',
+	},
+	shareProviderDescription: {
+		id: 'app.log-share.settings.share-provider-description',
+		defaultMessage: 'Where the diagnostic link is uploaded when you share it.',
+	},
+	aiSource: { id: 'app.log-share.settings.ai-source', defaultMessage: 'AI analysis source' },
+	aiSourceLogShare: {
+		id: 'app.log-share.settings.ai-source-logshare',
+		defaultMessage: 'LogShare AI',
+	},
+	aiSourceCustom: {
+		id: 'app.log-share.settings.ai-source-custom',
+		defaultMessage: 'Custom AI provider',
+	},
+	aiSourceDescription: {
+		id: 'app.log-share.settings.ai-source-description',
+		defaultMessage:
+			'Both sources send a sanitized and shortened crash context. AI output may be inaccurate.',
+	},
+	enabled: {
+		id: 'app.crash-analysis.ai.settings.enabled',
+		defaultMessage: 'Enable AI explanations',
+	},
+	enabledDescription: {
+		id: 'app.crash-analysis.ai.settings.enabled-description',
+		defaultMessage: 'Local rule-based crash analysis remains available without AI.',
+	},
+	provider: { id: 'app.crash-analysis.ai.settings.provider', defaultMessage: 'AI provider' },
+	model: { id: 'app.crash-analysis.ai.settings.model', defaultMessage: 'Text model' },
+	noProviders: {
+		id: 'app.crash-analysis.ai.settings.no-providers',
+		defaultMessage: 'Enable a provider and a text model above before using AI crash explanations.',
+	},
+	autoUpload: {
+		id: 'app.log-share.settings.auto-upload',
+		defaultMessage: 'Upload to get a structured summary automatically',
+	},
+	autoUploadDescription: {
+		id: 'app.log-share.settings.auto-upload-description',
+		defaultMessage: 'Only effective in LogShare AI mode.',
+	},
+	multiFile: { id: 'app.log-share.settings.multi-file', defaultMessage: 'Multi-file upload' },
+	multiFileDescription: {
+		id: 'app.log-share.settings.multi-file-description',
+		defaultMessage: 'Upload latest.log, crash reports, hs_err and launcher logs together.',
+	},
+	noStorage: {
+		id: 'app.log-share.settings.no-storage',
+		defaultMessage: 'Analyze without storing logs',
+	},
+	noStorageDescription: {
+		id: 'app.log-share.settings.no-storage-description',
+		defaultMessage:
+			'Submit content directly for analysis and skip the stored upload. Disables the automatic summary.',
+	},
+	showProgress: {
+		id: 'app.log-share.settings.show-progress',
+		defaultMessage: 'Show AI analysis progress',
+	},
+	showProgressDescription: {
+		id: 'app.log-share.settings.show-progress-description',
+		defaultMessage: 'Display thinking, tool and limit status while LogShare AI is working.',
+	},
+})
+
+const emptyState: AIState = { settings: { enabled: false }, catalog_source: '', providers: [] }
+const aiState = computed(() => sharedAIState.value ?? emptyState)
+const providers = computed(() =>
+	aiState.value.providers.filter(
+		(provider) => provider.enabled && provider.models.some((model) => model.enabled),
+	),
+)
+const providerOptions = computed(() =>
+	providers.value.map((provider) => ({
+		value: provider.provider_id,
+		label: provider.custom_name || provider.provider_id,
+	})),
+)
+const modelOptions = computed(
+	() =>
+		providers.value
+			.find((provider) => provider.provider_id === aiSettings.value.provider_id)
+			?.models.filter((model) => model.enabled)
+			.map((model) => ({ value: model.id, label: model.name || model.id })) ?? [],
+)
+
+const isCustom = computed(() => aiSettings.value.ai_source === 'custom')
+const noStorageEnabled = computed(() => aiSettings.value.ai_source === 'logshare')
+
+const shareProviderOptions = [
+	{ value: 'logshare', label: 'LogShare' },
+	{ value: 'mclogs', label: 'mclo.gs' },
+]
+const aiSourceOptions = [
+	{ value: 'logshare', label: formatMessage(messages.aiSourceLogShare) },
+	{ value: 'custom', label: formatMessage(messages.aiSourceCustom) },
+]
+
+async function saveShare(next: LogShareSettings): Promise<void> {
+	saving.value = true
+	try {
+		await update_log_share_settings(next)
+		settings.value = next
+	} catch (error) {
+		handleError(error)
+	} finally {
+		saving.value = false
+	}
+}
+
+async function saveAI(next: CrashAISettings): Promise<void> {
+	saving.value = true
+	try {
+		await update_crash_analysis_ai_settings(next)
+		aiSettings.value = next
+		settings.value = { ...settings.value, ai_source: next.ai_source }
+	} catch (error) {
+		handleError(error)
+	} finally {
+		saving.value = false
+	}
+}
+
+function updateShare(patch: Partial<LogShareSettings>): void {
+	void saveShare({ ...settings.value, ...patch })
+}
+
+function selectShareProvider(value: unknown): void {
+	const provider = value === 'mclogs' ? 'mclogs' : 'logshare'
+	updateShare({ share_provider: provider, ai_source: aiSettings.value.ai_source })
+}
+
+function selectAiSource(value: unknown): void {
+	const source = value === 'custom' ? 'custom' : 'logshare'
+	void saveAI({ ...aiSettings.value, ai_source: source })
+}
+
+function updateEnabled(enabled: boolean): void {
+	void saveAI({ ...aiSettings.value, enabled })
+}
+
+function updateProvider(providerId: string): void {
+	const provider = providers.value.find((item) => item.provider_id === providerId)
+	const modelId = provider?.models.find((model) => model.enabled)?.id ?? ''
+	void saveAI({ ...aiSettings.value, provider_id: providerId, model_id: modelId })
+}
+
+function updateModel(modelId: string): void {
+	void saveAI({ ...aiSettings.value, model_id: modelId })
+}
+
+onMounted(async () => {
+	try {
+		const [nextShare, nextAI] = await Promise.all([
+			get_log_share_settings(),
+			get_crash_analysis_ai_settings(),
+			getAIState(),
+		])
+		settings.value = { ...nextShare, ai_source: nextAI.ai_source }
+		aiSettings.value = nextAI
+	} catch (error) {
+		handleError(error)
+	} finally {
+		loading.value = false
+	}
+})
+</script>
+
+<template>
+	<SettingsSection
+		v-if="!loading"
+		id="settings-target-log-share"
+		:title="formatMessage(messages.title)"
+		:description="formatMessage(messages.description)"
+	>
+		<SettingsRow>
+			<template #label>{{ formatMessage(messages.shareProvider) }}</template>
+			<template #description>{{ formatMessage(messages.shareProviderDescription) }}</template>
+			<template #control>
+				<Combobox
+					id="log-share-provider"
+					:model-value="settings.share_provider"
+					:options="shareProviderOptions"
+					:disabled="saving"
+					@update:model-value="selectShareProvider($event)"
+				/>
+			</template>
+		</SettingsRow>
+		<SettingsRow>
+			<template #label>{{ formatMessage(messages.aiSource) }}</template>
+			<template #description>{{ formatMessage(messages.aiSourceDescription) }}</template>
+			<template #control>
+				<Combobox
+					id="log-share-ai-source"
+					:model-value="aiSettings.ai_source"
+					:options="aiSourceOptions"
+					:disabled="saving"
+					@update:model-value="selectAiSource($event)"
+				/>
+			</template>
+		</SettingsRow>
+		<template v-if="isCustom">
+			<SettingsRow>
+				<template #label>{{ formatMessage(messages.enabled) }}</template>
+				<template #description>{{ formatMessage(messages.enabledDescription) }}</template>
+				<template #control>
+					<Toggle
+						id="crash-analysis-ai-enabled"
+						:model-value="aiSettings.enabled"
+						:disabled="saving || !aiState.settings.enabled || !providers.length"
+						@update:model-value="updateEnabled(!!$event)"
+					/>
+				</template>
+			</SettingsRow>
+			<template v-if="providers.length">
+				<SettingsRow>
+					<template #label>{{ formatMessage(messages.provider) }}</template>
+					<template #control>
+						<Combobox
+							id="crash-analysis-ai-provider"
+							:model-value="aiSettings.provider_id"
+							:options="providerOptions"
+							:disabled="saving"
+							@update:model-value="updateProvider(String($event))"
+						/>
+					</template>
+				</SettingsRow>
+				<SettingsRow>
+					<template #label>{{ formatMessage(messages.model) }}</template>
+					<template #control>
+						<Combobox
+							id="crash-analysis-ai-model"
+							:model-value="aiSettings.model_id"
+							:options="modelOptions"
+							:disabled="saving || !aiSettings.provider_id"
+							@update:model-value="updateModel(String($event))"
+						/>
+					</template>
+				</SettingsRow>
+			</template>
+			<p v-else class="m-0 p-4 text-sm text-[var(--color-text-tertiary)]">
+				{{ formatMessage(messages.noProviders) }}
+			</p>
+		</template>
+		<SettingsRow>
+			<template #label>{{ formatMessage(messages.autoUpload) }}</template>
+			<template #description>{{ formatMessage(messages.autoUploadDescription) }}</template>
+			<template #control>
+				<Toggle
+					id="log-share-auto-upload"
+					:model-value="settings.auto_upload"
+					:disabled="saving || !noStorageEnabled || settings.no_storage"
+					@update:model-value="updateShare({ auto_upload: !!$event })"
+				/>
+			</template>
+		</SettingsRow>
+		<SettingsRow>
+			<template #label>{{ formatMessage(messages.multiFile) }}</template>
+			<template #description>{{ formatMessage(messages.multiFileDescription) }}</template>
+			<template #control>
+				<Toggle
+					id="log-share-multi-file"
+					:model-value="settings.multi_file"
+					:disabled="saving"
+					@update:model-value="updateShare({ multi_file: !!$event })"
+				/>
+			</template>
+		</SettingsRow>
+		<SettingsRow>
+			<template #label>{{ formatMessage(messages.noStorage) }}</template>
+			<template #description>{{ formatMessage(messages.noStorageDescription) }}</template>
+			<template #control>
+				<Toggle
+					id="log-share-no-storage"
+					:model-value="settings.no_storage"
+					:disabled="saving || !noStorageEnabled"
+					@update:model-value="updateShare({ no_storage: !!$event })"
+				/>
+			</template>
+		</SettingsRow>
+		<SettingsRow>
+			<template #label>{{ formatMessage(messages.showProgress) }}</template>
+			<template #description>{{ formatMessage(messages.showProgressDescription) }}</template>
+			<template #control>
+				<Toggle
+					id="log-share-show-progress"
+					:model-value="settings.show_progress"
+					:disabled="saving"
+					@update:model-value="updateShare({ show_progress: !!$event })"
+				/>
+			</template>
+		</SettingsRow>
+	</SettingsSection>
+</template>

apps/app-frontend/src/components/ui/settings/LogsSettings.vue

@@ -0,0 +1,66 @@
+<script setup lang="ts">
+import { FolderOpenIcon, UploadIcon } from '@modrinth/assets'
+import { Button, defineMessages, injectNotificationManager, useVIntl } from '@modrinth/ui'
+import { ref } from 'vue'
+
+import { showLauncherLogsFolder } from '@/helpers/utils'
+
+import LogExportModal from './LogExportModal.vue'
+import SettingsRow from './SettingsRow.vue'
+import SettingsSection from './SettingsSection.vue'
+
+const { formatMessage } = useVIntl()
+const { handleError } = injectNotificationManager()
+
+const exportModal = ref<InstanceType<typeof LogExportModal>>()
+
+const messages = defineMessages({
+	exportTitle: { id: 'app.settings.logs.export.title', defaultMessage: 'Export logs' },
+	exportDescription: {
+		id: 'app.settings.logs.export.description',
+		defaultMessage:
+			'Package launcher logs with an optional environment summary, instance log, and crash analysis.',
+	},
+	exportButton: { id: 'app.settings.logs.export.button', defaultMessage: 'Export logs…' },
+	openFolder: { id: 'app.settings.logs.open-folder', defaultMessage: 'Open logs folder' },
+})
+
+async function openLogsFolder() {
+	try {
+		await showLauncherLogsFolder()
+	} catch (error) {
+		handleError(error)
+	}
+}
+</script>
+
+<template>
+	<div class="flex flex-col gap-6">
+		<SettingsSection
+			:title="formatMessage(messages.exportTitle)"
+			:description="formatMessage(messages.exportDescription)"
+			title-id="settings-target-logs-export"
+		>
+			<SettingsRow stacked>
+				<template #label>
+					<span>{{ formatMessage(messages.exportTitle) }}</span>
+				</template>
+				<template #description>{{ formatMessage(messages.exportDescription) }}</template>
+				<template #control>
+					<div class="flex flex-wrap gap-2">
+						<Button type="colored" color="brand" @click="exportModal?.show()"
+							><UploadIcon />
+							{{ formatMessage(messages.exportButton) }}
+						</Button>
+						<Button @click="openLogsFolder"
+							><FolderOpenIcon />
+							{{ formatMessage(messages.openFolder) }}
+						</Button>
+					</div>
+				</template>
+			</SettingsRow>
+		</SettingsSection>
+
+		<LogExportModal ref="exportModal" />
+	</div>
+</template>

apps/app-frontend/src/components/ui/settings/SharedLogsSettings.vue

@@ -0,0 +1,129 @@
+<script setup lang="ts">
+import { Button, defineMessages, injectNotificationManager, useVIntl } from '@modrinth/ui'
+import { onMounted, ref } from 'vue'
+
+import { delete_shared_log, list_shared_logs } from '@/helpers/logs'
+
+import SettingsRow from './SettingsRow.vue'
+import SettingsSection from './SettingsSection.vue'
+
+type SharedLog = {
+	id: string
+	url: string
+	raw: string
+	token: string
+	provider: string
+	instance_id: string | null
+	instance_name: string | null
+	truncated: boolean
+	created_at: number
+}
+
+const { formatMessage } = useVIntl()
+const { addNotification, handleError } = injectNotificationManager()
+const logs = ref<SharedLog[]>([])
+const loading = ref(true)
+const deletingId = ref<string | null>(null)
+
+const messages = defineMessages({
+	title: { id: 'app.log-share.shared-logs.title', defaultMessage: 'Shared logs' },
+	description: {
+		id: 'app.log-share.shared-logs.description',
+		defaultMessage:
+			'Every diagnostic you have shared is listed here. Delete an entry to remove it from your history and request its removal from the sharing service.',
+	},
+	empty: { id: 'app.log-share.shared-logs.empty', defaultMessage: 'No shared logs yet.' },
+	delete: { id: 'app.log-share.shared-logs.delete', defaultMessage: 'Delete' },
+	deleting: { id: 'app.log-share.shared-logs.deleting', defaultMessage: 'Deleting…' },
+	deleted: {
+		id: 'app.log-share.shared-logs.deleted',
+		defaultMessage: 'Shared log removed.',
+	},
+	deleteFailed: {
+		id: 'app.log-share.shared-logs.delete-failed',
+		defaultMessage: 'Failed to delete the shared log.',
+	},
+	truncated: { id: 'app.log-share.shared-logs.truncated', defaultMessage: 'Truncated' },
+})
+
+async function refresh(): Promise<void> {
+	try {
+		logs.value = await list_shared_logs()
+	} catch (error) {
+		handleError(error)
+	} finally {
+		loading.value = false
+	}
+}
+
+async function remove(log: SharedLog): Promise<void> {
+	if (deletingId.value) return
+	deletingId.value = log.id
+	try {
+		await delete_shared_log(log.id, log.token)
+		logs.value = logs.value.filter((item) => item.id !== log.id)
+		addNotification({ title: formatMessage(messages.deleted), type: 'success' })
+	} catch (error) {
+		handleError(error)
+		addNotification({ title: formatMessage(messages.deleteFailed), type: 'error' })
+	} finally {
+		deletingId.value = null
+	}
+}
+
+function formatDate(timestamp: number): string {
+	return new Date(timestamp * 1000).toLocaleString()
+}
+
+onMounted(refresh)
+</script>
+
+<template>
+	<SettingsSection
+		id="settings-target-shared-logs"
+		:title="formatMessage(messages.title)"
+		:description="formatMessage(messages.description)"
+	>
+		<SettingsRow stacked>
+			<template #control>
+				<div class="flex w-full min-w-0 flex-col gap-2">
+					<p v-if="loading" class="m-0 p-2 text-sm text-[var(--color-text-tertiary)]">…</p>
+					<p v-else-if="!logs.length" class="m-0 p-2 text-sm text-[var(--color-text-tertiary)]">
+						{{ formatMessage(messages.empty) }}
+					</p>
+					<ul v-else class="m-0 flex max-h-72 list-none flex-col gap-1 overflow-y-auto p-2">
+						<li
+							v-for="log in logs"
+							:key="log.id"
+							class="flex items-center gap-3 rounded-lg bg-surface-2 px-3 py-2"
+						>
+							<a
+								:href="log.url || `https://logshare.cn/${log.id}`"
+								target="_blank"
+								rel="noopener noreferrer"
+								class="min-w-0 flex-1 truncate text-[var(--color-text-default)] underline"
+							>
+								{{ log.url || log.id }}
+							</a>
+							<span class="shrink-0 text-xs text-[var(--color-text-tertiary)]">
+								{{ log.provider }}
+								<template v-if="log.truncated">
+									· {{ formatMessage(messages.truncated) }}
+								</template>
+								<template v-if="log.instance_name"> · {{ log.instance_name }} </template>
+								· {{ formatDate(log.created_at) }}
+							</span>
+							<Button type="outlined" :disabled="deletingId === log.id" @click="remove(log)"
+								>{{
+									deletingId === log.id
+										? formatMessage(messages.deleting)
+										: formatMessage(messages.delete)
+								}}
+							</Button>
+						</li>
+					</ul>
+				</div>
+			</template>
+		</SettingsRow>
+	</SettingsSection>
+</template>

apps/app-frontend/src/components/ui/settings/settings-category-definitions.ts

@@ -3,6 +3,7 @@ import type { MessageDescriptor } from '@modrinth/ui'
 export type SettingsCategoryId =
 	| 'interface'
 	| 'home-navigation'
+	| 'shortcut-settings'
 	| 'language-translation'
 	| 'ai'
 	| 'java-performance'
@@ -13,6 +14,7 @@ export type SettingsCategoryId =
 	| 'updates'
 	| 'about'
 	| 'feature-flags'
+	| 'logs'
 
 export type SettingsGroupId = 'launcher' | 'game' | 'data-privacy' | 'support' | 'developer'
 
@@ -44,6 +46,15 @@ export const settingsCategoryDefinitions: SettingsCategoryDefinition[] = [
 		group: 'launcher',
 		onboardingId: 'settings-tab-home-navigation',
 	},
+	{
+		id: 'shortcut-settings',
+		name: {
+			id: 'app.settings.tabs.shortcut-settings',
+			defaultMessage: 'Keyboard shortcuts',
+		},
+		group: 'launcher',
+		onboardingId: 'settings-tab-shortcut-settings',
+	},
 	{
 		id: 'language-translation',
 		name: {
@@ -116,6 +127,11 @@ export const settingsCategoryDefinitions: SettingsCategoryDefinition[] = [
 		name: { id: 'app.settings.tabs.about', defaultMessage: 'About' },
 		group: 'support',
 	},
+	{
+		id: 'logs',
+		name: { id: 'app.settings.tabs.logs', defaultMessage: 'Logs' },
+		group: 'support',
+	},
 	{
 		id: 'feature-flags',
 		name: {

apps/app-frontend/src/components/ui/settings/settings-registry.ts

@@ -3,9 +3,11 @@ import {
 	BotIcon,
 	CoffeeIcon,
 	CpuIcon,
+	FileTextIcon,
 	GameIcon,
 	GaugeIcon,
 	InfoIcon,
+	KeyboardIcon,
 	LanguagesIcon,
 	LayoutTemplateIcon,
 	PaintbrushIcon,
@@ -48,6 +50,10 @@ const categoryContent: Record<SettingsCategoryId, Pick<SettingsCategory, 'icon'
 		icon: LayoutTemplateIcon,
 		content: defineAsyncComponent(() => import('./HomeNavigationSettings.vue')),
 	},
+	'shortcut-settings': {
+		icon: KeyboardIcon,
+		content: defineAsyncComponent(() => import('./KeybindSettings.vue')),
+	},
 	'language-translation': {
 		icon: LanguagesIcon,
 		content: defineAsyncComponent(() => import('./LanguageTranslationSettings.vue')),
@@ -78,6 +84,10 @@ const categoryContent: Record<SettingsCategoryId, Pick<SettingsCategory, 'icon'
 		content: defineAsyncComponent(() => import('./UpdateSettings.vue')),
 	},
 	about: { icon: InfoIcon, content: defineAsyncComponent(() => import('./AboutSettings.vue')) },
+	logs: {
+		icon: FileTextIcon,
+		content: defineAsyncComponent(() => import('./LogsSettings.vue')),
+	},
 	'feature-flags': {
 		icon: ToggleRightIcon,
 		content: defineAsyncComponent(() => import('./FeatureFlagSettings.vue')),

apps/app-frontend/src/components/ui/settings/settings-search-index.ts

@@ -384,6 +384,16 @@ export const settingsSearchEntries: SettingsSearchEntry[] = [
 		categoryId: 'feature-flags',
 		label: message('settings.feature-flags.title', 'Feature flags'),
 	},
+	{
+		id: 'logs-export',
+		categoryId: 'logs',
+		targetId: 'settings-target-logs-export',
+		label: message('app.settings.logs.export.title', 'Export logs'),
+		description: message(
+			'app.settings.logs.export.description',
+			'Package launcher logs with an optional environment summary, instance log, and crash analysis.',
+		),
+	},
 ]
 
 export function validateSettingsSearchEntries(entries = settingsSearchEntries): string[] {

apps/app-frontend/src/components/ui/skin/ArmorTrimTab.vue

@@ -0,0 +1,123 @@
+<script setup lang="ts">
+import { CheckIcon, RotateCounterClockwiseIcon, XIcon } from '@modrinth/assets'
+import {
+	type ArmorPreviewConfig,
+	ArmorTrimPanel,
+	Button,
+	defineMessages,
+	useVIntl,
+} from '@modrinth/ui'
+import { computed, onMounted, onUnmounted } from 'vue'
+
+const messages = defineMessages({
+	title: { id: 'app.skins.armor.title', defaultMessage: 'Armour and trims' },
+	description: {
+		id: 'app.skins.armor.description',
+		defaultMessage: 'Try armour and trims on your skin. Nothing is stored until you save it.',
+	},
+	unsaved: { id: 'app.skins.armor.unsaved', defaultMessage: 'Unsaved changes' },
+	resetToSaved: { id: 'app.skins.armor.reset-to-saved', defaultMessage: 'Reset to saved' },
+	restoreDefaults: {
+		id: 'app.skins.armor.restore-defaults',
+		defaultMessage: 'Restore defaults',
+	},
+	save: { id: 'app.skins.armor.save', defaultMessage: 'Save' },
+	close: { id: 'app.skins.armor.close', defaultMessage: 'Close' },
+})
+
+const draft = defineModel<ArmorPreviewConfig>({ required: true })
+const props = defineProps<{
+	saved: ArmorPreviewConfig
+	/** Stable id shared with the toggle so it can point `aria-controls` here. */
+	panelId: string
+}>()
+const emit = defineEmits<{
+	save: []
+	reset: []
+	defaults: []
+	close: []
+}>()
+
+const { formatMessage } = useVIntl()
+
+/**
+ * The tab is mounted only while it is showing, so this listens exactly for that
+ * window. It listens in the capture phase because the app's own global
+ * shortcuts listen on `window` the same way, and a bubble-phase listener here
+ * would be skipped as soon as anything closer stopped the event. A modal on top
+ * of the page owns Escape while it is up, and focus sits inside it, so the key
+ * is left to it.
+ */
+function handleKeydown(event: KeyboardEvent) {
+	if (event.key !== 'Escape') return
+	if (
+		event.target instanceof Element &&
+		event.target.closest('[role="dialog"], [role="alertdialog"], [aria-modal="true"]')
+	) {
+		return
+	}
+
+	emit('close')
+}
+
+onMounted(() => window.addEventListener('keydown', handleKeydown, true))
+onUnmounted(() => window.removeEventListener('keydown', handleKeydown, true))
+
+const isDirty = computed(() =>
+	Object.entries(draft.value).some(([slot, piece]) => {
+		const applied = props.saved[slot as keyof ArmorPreviewConfig]
+		return (
+			!applied ||
+			applied.material !== piece.material ||
+			applied.trimPattern !== piece.trimPattern ||
+			applied.trimMaterial !== piece.trimMaterial
+		)
+	}),
+)
+</script>
+
+<template>
+	<div
+		:id="panelId"
+		role="region"
+		:aria-label="formatMessage(messages.title)"
+		class="flex min-h-[24rem] flex-col gap-4 rounded-2xl border border-solid border-surface-5 bg-surface-2 p-4"
+	>
+		<header class="flex flex-wrap items-start justify-between gap-3">
+			<div class="min-w-0">
+				<h2 class="m-0 text-lg font-bold text-[var(--color-text-primary)]">
+					{{ formatMessage(messages.title) }}
+				</h2>
+				<p class="m-0 mt-1 text-sm leading-6 text-[var(--color-text-tertiary)]">
+					{{ formatMessage(messages.description) }}
+				</p>
+			</div>
+			<div class="flex shrink-0 flex-wrap items-center gap-2">
+				<span v-if="isDirty" class="text-sm font-semibold text-[var(--color-text-tertiary)]">
+					{{ formatMessage(messages.unsaved) }}
+				</span>
+				<Button type="outlined" @click="emit('close')"
+					><XIcon />{{ formatMessage(messages.close) }}</Button
+				>
+			</div>
+		</header>
+
+		<ArmorTrimPanel v-model="draft" />
+
+		<footer
+			class="mt-auto flex flex-wrap items-center justify-between gap-2 border-0 border-t border-solid border-surface-5 pt-3"
+		>
+			<div class="flex flex-wrap items-center gap-2">
+				<Button type="outlined" :disabled="!isDirty" @click="emit('reset')"
+					><RotateCounterClockwiseIcon />{{ formatMessage(messages.resetToSaved) }}</Button
+				>
+				<Button type="outlined" @click="emit('defaults')">{{
+					formatMessage(messages.restoreDefaults)
+				}}</Button>
+			</div>
+			<Button type="colored" color="brand" :disabled="!isDirty" @click="emit('save')"
+				><CheckIcon />{{ formatMessage(messages.save) }}</Button
+			>
+		</footer>
+	</div>
+</template>

apps/app-frontend/src/components/ui/skin/SkinListSkeleton.vue

@@ -0,0 +1,28 @@
+<script setup lang="ts">
+const { sections = 2, cards = 12 } = defineProps<{
+	sections?: number
+	cards?: number
+}>()
+</script>
+
+<template>
+	<!--
+		Shaped after VirtualSkinSectionList: the same grid breakpoints and card
+		ratio, so the swap to real content does not move anything. Decorative, so
+		it stays out of the accessibility tree.
+	-->
+	<div class="flex flex-col gap-8" aria-hidden="true">
+		<div v-for="section in sections" :key="section" class="flex flex-col gap-4">
+			<div class="h-7 w-44 animate-pulse rounded-lg bg-surface-4" />
+			<div
+				class="grid w-full grid-cols-3 gap-3 min-[1300px]:grid-cols-4 min-[1750px]:grid-cols-5 min-[2050px]:grid-cols-6"
+			>
+				<div
+					v-for="card in cards"
+					:key="card"
+					class="aspect-[31/40] w-full animate-pulse rounded-[20px] bg-surface-4"
+				/>
+			</div>
+		</div>
+	</div>
+</template>

apps/app-frontend/src/composables/useGridGrouping.ts

@@ -7,15 +7,22 @@ export const UNGROUPED_GROUP_KEY = '__ungrouped__'
 
 export type GridGroupingOption = 'Group' | 'Loader' | 'Game version' | 'None'
 export type GridSortOption =
-	| 'Name'
-	| 'Last played'
-	| 'Date created'
-	| 'Date modified'
-	| 'Game version'
+	'Name' | 'Last played' | 'Date created' | 'Date modified' | 'Game version'
+
+export type GridSortDirection = 'asc' | 'desc'
+
+export const defaultSortDirections: Record<GridSortOption, GridSortDirection> = {
+	Name: 'asc',
+	'Last played': 'desc',
+	'Date created': 'desc',
+	'Date modified': 'desc',
+	'Game version': 'asc',
+}
 
 export interface GridDisplayState {
 	group: GridGroupingOption
 	sortBy: GridSortOption
+	sortDirections: Partial<Record<GridSortOption, GridSortDirection>>
 	collapsedGroups: string[]
 }
 
@@ -38,6 +45,7 @@ export function useGridGrouping<T extends Record<string, unknown>>(
 		{
 			group: 'Group',
 			sortBy: 'Name',
+			sortDirections: {},
 			collapsedGroups: [],
 		},
 		localStorage,
@@ -66,7 +74,7 @@ export function useGridGrouping<T extends Record<string, unknown>>(
 		state.value.collapsedGroups = [...collapsedSections]
 	}
 
-	function sortInstances(instances: T[], sortBy: GridSortOption): T[] {
+	function sortInstances(instances: T[], sortBy: GridSortOption, ascending: boolean): T[] {
 		const sorted = [...instances]
 		const getGameVersion = options.getGameVersion ?? ((i: T) => i.game_version ?? '')
 		const getLastPlayed = options.getLastPlayed ?? ((i: T) => i.last_played ?? 0)
@@ -83,16 +91,19 @@ export function useGridGrouping<T extends Record<string, unknown>>(
 				)
 				break
 			case 'Last played':
-				sorted.sort((a, b) => dayjs(getLastPlayed(b)).diff(dayjs(getLastPlayed(a))))
+				sorted.sort((a, b) => dayjs(getLastPlayed(a)).diff(dayjs(getLastPlayed(b))))
 				break
 			case 'Date created':
-				sorted.sort((a, b) => dayjs(getDateCreated(b)).diff(dayjs(getDateCreated(a))))
+				sorted.sort((a, b) => dayjs(getDateCreated(a)).diff(dayjs(getDateCreated(b))))
 				break
 			case 'Date modified':
-				sorted.sort((a, b) => dayjs(getDateModified(b)).diff(dayjs(getDateModified(a))))
+				sorted.sort((a, b) => dayjs(getDateModified(a)).diff(dayjs(getDateModified(b))))
 				break
 		}
 
+		if (!ascending) {
+			sorted.reverse()
+		}
 		return sorted
 	}
 
@@ -148,11 +159,25 @@ export function useGridGrouping<T extends Record<string, unknown>>(
 	function sortSections(
 		instanceMap: Map<string, T[]>,
 		group: GridGroupingOption,
+		sortBy: GridSortOption,
 	): Map<string, T[]> {
 		if (group !== 'Group' && group !== 'Game version') {
 			return instanceMap
 		}
 
+		if (group === 'Group' && sortBy !== 'Name') {
+			if (instanceMap.has(UNGROUPED_GROUP_KEY) && instanceMap.size > 1) {
+				const ungroupedInstances = instanceMap.get(UNGROUPED_GROUP_KEY)!
+				instanceMap.delete(UNGROUPED_GROUP_KEY)
+				const newMap = new Map<string, T[]>([[UNGROUPED_GROUP_KEY, ungroupedInstances]])
+				for (const [key, instances] of instanceMap) {
+					newMap.set(key, instances)
+				}
+				return newMap
+			}
+			return instanceMap
+		}
+
 		const sortedEntries = [...instanceMap.entries()].sort((a, b) => {
 			if (group === 'Group') {
 				if (a[0] === UNGROUPED_GROUP_KEY && b[0] !== UNGROUPED_GROUP_KEY) return -1
@@ -166,12 +191,30 @@ export function useGridGrouping<T extends Record<string, unknown>>(
 		return instanceMap
 	}
 
+	const sortDirection = computed<GridSortDirection>(() => {
+		return (
+			state.value.sortDirections[state.value.sortBy] ?? defaultSortDirections[state.value.sortBy]
+		)
+	})
+
+	const isSortAscending = computed(() => sortDirection.value === 'asc')
+
+	const toggleSortDirection = () => {
+		const current = sortDirection.value
+		const next: GridSortDirection = current === 'asc' ? 'desc' : 'asc'
+		state.value.sortDirections = {
+			...state.value.sortDirections,
+			[state.value.sortBy]: next,
+		}
+	}
+
 	const filteredResults = computed(() => {
 		const { group = 'Group', sortBy = 'Name' } = state.value
+		const ascending = isSortAscending.value
 
-		const sorted = sortInstances(instances.value, sortBy)
+		const sorted = sortInstances(instances.value, sortBy, ascending)
 		const grouped = groupInstances(sorted, group)
-		return sortSections(grouped, group)
+		return sortSections(grouped, group, sortBy)
 	})
 
 	return {
@@ -180,6 +223,9 @@ export function useGridGrouping<T extends Record<string, unknown>>(
 		filteredResults,
 		isSectionCollapsed,
 		setSectionCollapsed,
+		sortDirection,
+		isSortAscending,
+		toggleSortDirection,
 		UNGROUPED_GROUP_KEY,
 	}
-}
+}

apps/app-frontend/src/composables/useInstanceGroups.ts

@@ -0,0 +1,182 @@
+import { computed, type Ref, ref, watch } from 'vue'
+
+import { instance_groups_listener } from '@/helpers/events'
+import {
+	create_group,
+	delete_group,
+	type InstanceGroupDefinition,
+	type InstanceGroupMembershipUpdate,
+	list_groups,
+	MAX_INSTANCE_GROUP_NAME_LENGTH,
+	rename_group,
+	set_group_memberships,
+	set_group_order,
+} from '@/helpers/instance-groups'
+
+export const FAVORITES_GROUP_ID = 'group:favorites'
+
+export const UNGROUPED_GROUP_ID = 'group:none'
+
+export { MAX_INSTANCE_GROUP_NAME_LENGTH }
+
+export { type InstanceGroupDefinition, type InstanceGroupMembershipUpdate }
+
+export interface InstanceGroupWithMembership {
+	key: string
+	name: string
+	instances: string[]
+}
+
+export function useInstanceGroups(instances: Ref<{ id: string; groups: string[] }[]>) {
+	const libraryGroups = ref<InstanceGroupDefinition[]>([])
+	const libraryGroupsLoaded = ref(false)
+
+	async function fetchGroups() {
+		libraryGroups.value = await list_groups()
+		libraryGroupsLoaded.value = true
+	}
+
+	fetchGroups()
+
+	instance_groups_listener(() => {
+		fetchGroups()
+	})
+
+	const orderedLibraryGroupIds = ref<string[]>([])
+
+	watch(
+		libraryGroups,
+		(groups) => {
+			orderedLibraryGroupIds.value = groups.map((g) => g.id)
+		},
+		{ immediate: true },
+	)
+
+	const instanceGroups = computed(() => {
+		if (!libraryGroupsLoaded.value) {
+			return []
+		}
+
+		const instanceGroupMap = new Map<string, string[]>()
+
+		for (const instance of instances.value) {
+			const groups = instance.groups ?? []
+			for (const groupId of groups) {
+				if (!instanceGroupMap.has(groupId)) {
+					instanceGroupMap.set(groupId, [])
+				}
+				instanceGroupMap.get(groupId)!.push(instance.id)
+			}
+		}
+
+		const allGroupIds = new Set<string>()
+		const groupMap = new Map<string, string[]>()
+
+		for (const groupId of orderedLibraryGroupIds.value) {
+			allGroupIds.add(groupId)
+			groupMap.set(groupId, instanceGroupMap.get(groupId) ?? [])
+		}
+
+		const ungroupedIds: string[] = []
+		for (const instance of instances.value) {
+			const instanceGroups = instance.groups ?? []
+			const isInAnyGroup = instanceGroups.some((g) => allGroupIds.has(g))
+			if (!isInAnyGroup) {
+				ungroupedIds.push(instance.id)
+			}
+		}
+
+		if (ungroupedIds.length > 0) {
+			groupMap.set(UNGROUPED_GROUP_ID, ungroupedIds)
+		}
+
+		return [...groupMap.entries()].map(([key, instances]) => ({
+			key,
+			name:
+				key === UNGROUPED_GROUP_ID
+					? 'Ungrouped'
+					: (libraryGroups.value.find((g) => g.id === key)?.name ?? key),
+			instances,
+		}))
+	})
+
+	const creatingGroup = ref(false)
+	const reorderingGroups = ref(false)
+
+	async function createNewGroup(name: string): Promise<string | null> {
+		creatingGroup.value = true
+		try {
+			const group = await create_group(name)
+			libraryGroups.value = [...libraryGroups.value, group]
+			orderedLibraryGroupIds.value = [...orderedLibraryGroupIds.value, group.id]
+			return group.id
+		} finally {
+			creatingGroup.value = false
+		}
+	}
+
+	async function renameGroupById(id: string, newName: string): Promise<boolean> {
+		if (id === FAVORITES_GROUP_ID) return false
+		const result = await rename_group(id, newName)
+		const idx = libraryGroups.value.findIndex((g) => g.id === id)
+		if (idx !== -1) {
+			libraryGroups.value = [
+				...libraryGroups.value.slice(0, idx),
+				result,
+				...libraryGroups.value.slice(idx + 1),
+			]
+		}
+		return true
+	}
+
+	async function deleteGroupById(id: string): Promise<boolean> {
+		if (id === FAVORITES_GROUP_ID) return false
+		await delete_group(id)
+		libraryGroups.value = libraryGroups.value.filter((g) => g.id !== id)
+		orderedLibraryGroupIds.value = orderedLibraryGroupIds.value.filter((gid) => gid !== id)
+		return true
+	}
+
+	async function reorderGroups(groupIds: string[]): Promise<boolean> {
+		reorderingGroups.value = true
+		try {
+			await set_group_order(groupIds)
+			// Favorites is rendered separately from draggable sections. Keep it in
+			// the local order after a drag even though the backend accepts only the
+			// reorderable group ids; otherwise it appears again as an ordinary
+			// section until the next full group refresh.
+			orderedLibraryGroupIds.value = [
+				FAVORITES_GROUP_ID,
+				...groupIds.filter((id) => id !== FAVORITES_GROUP_ID),
+			]
+			return true
+		} finally {
+			reorderingGroups.value = false
+		}
+	}
+
+	async function setMemberships(updates: InstanceGroupMembershipUpdate[]): Promise<boolean> {
+		await set_group_memberships(updates)
+		return true
+	}
+
+	function groupNameById(id: string): string | undefined {
+		if (id === UNGROUPED_GROUP_ID) return 'Ungrouped'
+		return libraryGroups.value.find((g) => g.id === id)?.name
+	}
+
+	return {
+		libraryGroups,
+		libraryGroupsLoaded,
+		orderedLibraryGroupIds,
+		instanceGroups,
+		creatingGroup,
+		reorderingGroups,
+		createGroup: createNewGroup,
+		renameGroupById,
+		deleteGroupById,
+		reorderGroups,
+		setMemberships,
+		groupNameById,
+	}
+}

apps/app-frontend/src/composables/useKeyboardShortcuts.ts

@@ -0,0 +1,215 @@
+import {
+	type KeyBinding,
+	bindingMatchesKeyboardEvent,
+	bindingMatchesMouseEvent,
+	bindingMatchesWheelEvent,
+	useModalStack,
+} from '@modrinth/ui'
+import { computed, onUnmounted } from 'vue'
+import { useRoute, useRouter } from 'vue-router'
+
+import { useNetworkStatus } from '@/composables/useNetworkStatus'
+import {
+	SCROLL_ACTIONS,
+	SHORTCUT_ACTIONS,
+	type ShortcutAction,
+} from '@/helpers/shortcut-actions'
+import { resolveAllBindings } from '@/helpers/shortcut-bindings'
+import { getNavShortcutEnabled } from '@/helpers/nav-shortcut-state'
+import { getQuickScrollEnabled } from '@/helpers/scroll-top-state'
+import { useTheming } from '@/store/theme'
+
+/** Editing surfaces keep these keys for themselves. */
+function isEditableTarget(target: EventTarget | null) {
+	return (
+		target instanceof HTMLInputElement ||
+		target instanceof HTMLTextAreaElement ||
+		target instanceof HTMLSelectElement ||
+		(target instanceof HTMLElement && target.isContentEditable)
+	)
+}
+
+function scrollsAtOwnLevel(element: Element) {
+	const { overflowY } = getComputedStyle(element)
+	return /(auto|scroll|overlay)/.test(overflowY) && element.scrollHeight > element.clientHeight
+}
+
+/** A container that scrolls the page itself rather than a widget on it. */
+function isPageScroller(element: Element) {
+	return scrollsAtOwnLevel(element) && element.clientHeight >= window.innerHeight / 2
+}
+
+/** Nearest scrolling ancestor, whatever its size. */
+function nearestScrollContainer(target: EventTarget | null) {
+	let element = target instanceof Element ? target : null
+	while (element) {
+		if (scrollsAtOwnLevel(element)) return element
+		element = element.parentElement
+	}
+	return null
+}
+
+/**
+ * The page's own scroller. Most pages scroll inside `.app-viewport`, but some
+ * screens (settings, consoles, studios) turn that element's scrolling off and
+ * host a full-height container inside it, so fall back to whatever fills the
+ * middle of the viewport.
+ */
+function resolvePageScroller() {
+	const viewport = document.querySelector<HTMLElement>('.app-viewport')
+	if (!viewport) return null
+	if (isPageScroller(viewport)) return viewport
+
+	const bounds = viewport.getBoundingClientRect()
+	let element: Element | null = document.elementFromPoint(
+		bounds.left + bounds.width / 2,
+		bounds.top + bounds.height / 2,
+	)
+	while (element) {
+		if (isPageScroller(element)) return element
+		element = element.parentElement
+	}
+
+	return viewport
+}
+
+export function setupKeyboardShortcuts() {
+	const themeStore = useTheming()
+	const { hasModal } = useModalStack()
+	const route = useRoute()
+	const router = useRouter()
+	const { offline } = useNetworkStatus()
+
+	themeStore.quickScrollEnabled = getQuickScrollEnabled()
+	for (const shortcut of SHORTCUT_ACTIONS) {
+		if (shortcut.group === 'nav') themeStore[shortcut.enabledField] = getNavShortcutEnabled(shortcut.id)
+	}
+	themeStore.shortcutBindings = resolveAllBindings()
+
+	/** The combination an action answers to now: recorded if there is one, default otherwise. */
+	function bindingFor(action: ShortcutAction): KeyBinding {
+		return themeStore.shortcutBindings[action.id] ?? action.defaultBinding
+	}
+
+	/** Whether an action is switched on and reachable in the current state. */
+	function shortcutIsAvailable(action: ShortcutAction): boolean {
+		if (!themeStore[action.enabledField]) return false
+		return !action.unavailable?.({
+			worldsTabEnabled: themeStore.featureFlags.worlds_tab,
+			offline: offline.value,
+		})
+	}
+
+	function findShortcut<E extends Event>(
+		event: E,
+		matches: (binding: KeyBinding, event: E) => boolean,
+		{ includeDisabled = false }: { includeDisabled?: boolean } = {},
+	): ShortcutAction | null {
+		if (hasModal.value) return null
+		if (isEditableTarget(event.target)) return null
+
+		for (const action of SHORTCUT_ACTIONS) {
+			if (!includeDisabled && !shortcutIsAvailable(action)) continue
+			if (matches(bindingFor(action), event)) return action
+		}
+
+		return null
+	}
+
+	/** Does what an action is for. Scrolling actions move the page's own scroller. */
+	function runShortcut(action: ShortcutAction, event: Event) {
+		if (action.target) {
+			router.push(action.target(route))
+			return
+		}
+
+		const focusedContainer = nearestScrollContainer(event.target)
+		if (focusedContainer && !isPageScroller(focusedContainer)) return
+
+		const scroller = resolvePageScroller()
+		if (!scroller) return
+
+		action.applyScroll?.(scroller)
+	}
+
+	function handleScrollShortcutKey(event: KeyboardEvent) {
+		if (event.isComposing) return
+
+		const match = findShortcut(event, bindingMatchesKeyboardEvent, { includeDisabled: true })
+		if (match?.group !== 'scroll') return
+
+		const focusedContainer = nearestScrollContainer(event.target)
+		if (focusedContainer && !isPageScroller(focusedContainer)) return
+
+		const scroller = resolvePageScroller()
+		if (!scroller) return
+
+		event.preventDefault()
+		if (!shortcutIsAvailable(match)) return
+
+		match.applyScroll?.(scroller)
+	}
+
+	function handleNavShortcutKey(event: KeyboardEvent) {
+		if (event.isComposing) return
+
+		const match = findShortcut(event, bindingMatchesKeyboardEvent)
+		if (match?.group !== 'nav') return
+
+		event.preventDefault()
+		runShortcut(match, event)
+	}
+
+	const hasPointerBindings = computed(() =>
+		SHORTCUT_ACTIONS.some((action) => bindingFor(action).device === 'mouse'),
+	)
+
+	function handleShortcutMouse(event: MouseEvent) {
+		if (!hasPointerBindings.value) return
+
+		const match = findShortcut(event, bindingMatchesMouseEvent)
+		if (!match) return
+
+		event.preventDefault()
+		event.stopPropagation()
+		runShortcut(match, event)
+	}
+
+	function handleShortcutWheel(event: WheelEvent) {
+		if (!hasPointerBindings.value) return
+
+		const match = findShortcut(event, bindingMatchesWheelEvent)
+		if (!match) return
+
+		event.preventDefault()
+		event.stopPropagation()
+		runShortcut(match, event)
+	}
+
+	function handleGlobalKeydown(event: KeyboardEvent) {
+		const key = event.key.toLowerCase()
+		const isFindShortcut = key === 'f' && (event.ctrlKey || event.metaKey)
+		const isBlockedDevtoolsShortcut = event.key === 'F12' && !themeStore.devMode
+
+		if (isFindShortcut || isBlockedDevtoolsShortcut) {
+			event.preventDefault()
+			event.stopPropagation()
+		}
+
+		handleScrollShortcutKey(event)
+		handleNavShortcutKey(event)
+	}
+
+	window.addEventListener('keydown', handleGlobalKeydown, true)
+	window.addEventListener('mousedown', handleShortcutMouse, true)
+	// Not passive: a bound wheel direction has to keep the page from scrolling.
+	window.addEventListener('wheel', handleShortcutWheel, { capture: true, passive: false })
+
+	onUnmounted(() => {
+		window.removeEventListener('keydown', handleGlobalKeydown, true)
+		window.removeEventListener('mousedown', handleShortcutMouse, true)
+		window.removeEventListener('wheel', handleShortcutWheel, { capture: true, passive: false })
+	})
+
+	return { bindingFor, shortcutIsAvailable, SCROLL_ACTIONS }
+}

apps/app-frontend/src/helpers/analytics.ts

@@ -0,0 +1,75 @@
+interface InstanceProperties {
+	loader: string
+	game_version: string
+}
+
+interface ProjectProperties extends InstanceProperties {
+	id: string
+	project_type: string
+}
+
+type AnalyticsEventMap = {
+	Launched: { version: string; dev: boolean; onboarded: boolean }
+	PageView: { path: string; fromPath: string; failed: unknown }
+	InstanceCreate: { source: string }
+	InstanceCreateStart: { source: string }
+	InstanceStart: InstanceProperties & { source: string }
+	InstanceStop: Partial<InstanceProperties> & { source?: string }
+	InstanceDuplicate: InstanceProperties
+	InstanceRepair: InstanceProperties
+	InstanceSetIcon: Record<string, never>
+	InstanceRemoveIcon: Record<string, never>
+	InstanceUpdateAll: InstanceProperties & { count: number; selected: boolean }
+	InstanceProjectUpdate: InstanceProperties & { id: string; name: string; project_type: string }
+	InstanceProjectDisable: InstanceProperties & {
+		id: string
+		name: string
+		project_type: string
+		disabled: boolean
+	}
+	InstanceProjectRemove: InstanceProperties & { id: string; name: string; project_type: string }
+	ProjectInstall: ProjectProperties & { version_id: string; title: string; source: string }
+	ProjectInstallStart: { source: string }
+	PackInstall: { id: string; version_id: string; title: string; source: string }
+	PackInstallStart: Record<string, never>
+	AccountLogIn: { source?: string }
+	AccountLogOut: Record<string, never>
+	JavaTest: { path: string; success: boolean }
+	JavaManualSelect: { version: string }
+	JavaAutoDetect: { path: string; version: string }
+	GalleryImageNext: { project_id: string; url: string }
+	GalleryImagePrevious: { project_id: string; url: unknown }
+	GalleryImageExpand: { project_id: string; url: string }
+}
+
+export type AnalyticsEvent = keyof AnalyticsEventMap
+
+let optedIn = false
+let debugEnabled = false
+
+export const initAnalytics = () => {
+	optedIn = true
+}
+
+export const debugAnalytics = () => {
+	debugEnabled = true
+}
+
+export const optOutAnalytics = () => {
+	optedIn = false
+}
+
+export const optInAnalytics = () => {
+	optedIn = true
+}
+
+type OptionalArgs<T> = Record<string, never> extends T ? [properties?: T] : [properties: T]
+
+export const trackEvent = <E extends AnalyticsEvent>(
+	eventName: E,
+	...args: OptionalArgs<AnalyticsEventMap[E]>
+) => {
+	if (optedIn && debugEnabled) {
+		console.debug('[Starlight telemetry disabled]', eventName, args[0])
+	}
+}

apps/app-frontend/src/helpers/events.js

@@ -82,6 +82,16 @@ export async function instance_bulk_update_progress_listener(callback) {
 	return await listen('instance_bulk_update_progress', (event) => callback(event.payload))
 }
 
+/// Payload for the 'instance_groups_changed' event
+/*
+	InstanceGroupsChangedPayload {
+		instance_ids: string[]
+	}
+*/
+export async function instance_groups_listener(callback) {
+	return await listen('instance_groups_changed', (event) => callback(event.payload))
+}
+
 export async function install_job_listener(callback) {
 	return await listen('install_job', (event) => callback(event.payload))
 }
@@ -150,6 +160,10 @@ export async function notification_listener(callback) {
 	return await listen('notification', (event) => callback(event.payload))
 }
 
+export async function logshare_ai_listener(callback) {
+	return await listen('logshare_ai', (event) => callback(event.payload))
+}
+
 /// Payload for the 'log' event
 /*
     LogPayload {

apps/app-frontend/src/helpers/instance-groups.ts

@@ -1 +1,46 @@
-export const MAX_INSTANCE_GROUP_NAME_LENGTH = 256
+import { invoke } from '@tauri-apps/api/core'
+
+export const MAX_INSTANCE_GROUP_NAME_LENGTH = 256
+
+export type InstanceGroupDefinition = {
+	id: string
+	name: string
+}
+
+export type InstanceGroupMembershipUpdate = {
+	instance_id: string
+	group_ids: string[]
+}
+
+export async function list_groups(): Promise<InstanceGroupDefinition[]> {
+	return await invoke('plugin:instance|instance_list_groups')
+}
+
+export async function create_group(name: string): Promise<InstanceGroupDefinition> {
+	return await invoke('plugin:instance|instance_create_group', { name })
+}
+
+export async function rename_group(id: string, newName: string): Promise<InstanceGroupDefinition> {
+	return await invoke('plugin:instance|instance_rename_group', {
+		id,
+		newName,
+	})
+}
+
+export async function delete_group(id: string): Promise<void> {
+	return await invoke('plugin:instance|instance_delete_group', { id })
+}
+
+export async function set_group_order(group_ids: string[]): Promise<void> {
+	return await invoke('plugin:instance|instance_set_group_order', {
+		groupIds: group_ids,
+	})
+}
+
+export async function set_group_memberships(
+	updates: InstanceGroupMembershipUpdate[],
+): Promise<void> {
+	return await invoke('plugin:instance|instance_set_group_memberships', {
+		updates,
+	})
+}

apps/app-frontend/src/helpers/logs.js

@@ -95,6 +95,50 @@ export async function undo_added_mod(instanceId, filename, expectedHash) {
 	return await invoke('plugin:logs|logs_undo_added_mod', { instanceId, filename, expectedHash })
 }
 
+export async function get_log_share_settings() {
+	return await invoke('plugin:logs|logs_get_log_share_settings')
+}
+
+export async function update_log_share_settings(settings) {
+	return await invoke('plugin:logs|logs_update_log_share_settings', { settings })
+}
+
+export async function logshare_upload_crash(instanceId) {
+	return await invoke('plugin:logs|logs_logshare_upload_crash', { instanceId })
+}
+
+export async function logshare_get_insights(id) {
+	return await invoke('plugin:logs|logs_logshare_get_insights', { id })
+}
+
+export async function logshare_analyse_crash_direct(instanceId) {
+	return await invoke('plugin:logs|logs_logshare_analyse_crash_direct', { instanceId })
+}
+
+export async function logshare_ai_analyze_stored(instanceId, id) {
+	return await invoke('plugin:logs|logs_logshare_ai_analyze_stored', { instanceId, id })
+}
+
+export async function logshare_ai_analyze_direct(instanceId) {
+	return await invoke('plugin:logs|logs_logshare_ai_analyze_direct', { instanceId })
+}
+
+export async function logshare_delete(id, token) {
+	return await invoke('plugin:logs|logs_logshare_delete', { id, token })
+}
+
+export async function list_shared_logs() {
+	return await invoke('plugin:logs|logs_list_shared_logs')
+}
+
+export async function record_shared_log(log) {
+	return await invoke('plugin:logs|logs_record_shared_log', { log })
+}
+
+export async function delete_shared_log(id, token) {
+	return await invoke('plugin:logs|logs_delete_shared_log', { id, token })
+}
+
 /// Export the censored files and local analysis from an instance's latest run.
 export async function export_crash_context(instanceId, instanceName) {
 	const timestamp = new Date().toISOString().replace(/[:.]/g, '-')

apps/app-frontend/src/helpers/nav-shortcut-state.ts

@@ -0,0 +1,14 @@
+const NAV_SHORTCUT_STORAGE_PREFIX = 'starlight-shortcut-nav-'
+
+/**
+ * Whether a navigation shortcut is enabled. Shortcuts are off by default;
+ * each one is turned on individually from the Shortcut settings page.
+ */
+export function getNavShortcutEnabled(id: string): boolean {
+	const value = localStorage.getItem(NAV_SHORTCUT_STORAGE_PREFIX + id)
+	return value === 'true'
+}
+
+export function setNavShortcutEnabled(id: string, enabled: boolean) {
+	localStorage.setItem(NAV_SHORTCUT_STORAGE_PREFIX + id, String(enabled))
+}

apps/app-frontend/src/helpers/remote-announcements.test.ts

@@ -0,0 +1,78 @@
+import assert from 'node:assert/strict'
+import test from 'node:test'
+
+import { mapBroadcastAnnouncements } from './remote-announcements.ts'
+
+test('maps a broadcast entry into a remote announcement', () => {
+	const result = mapBroadcastAnnouncements([
+		{
+			id: 1,
+			title: '维护通知',
+			subtitle: '今晚停机',
+			content: '服务器将于今晚维护。',
+			updateAt: 1791640873710,
+			star: true,
+			importantLevel: 9,
+			source: 'SKIN',
+		},
+	])
+	assert.equal(result?.length, 1)
+	const item = result?.[0]
+	assert.equal(item?.id, '1')
+	assert.equal(item?.title, '维护通知')
+	assert.equal(item?.summary, '今晚停机')
+	assert.equal(item?.priority, 'critical')
+	assert.equal(item?.pinned, true)
+	assert.equal(item?.type, 'modal')
+	assert.equal(item?.published_at, new Date(1791640873710).toISOString())
+	assert.equal(item?.ends_at, null)
+})
+
+test('empty or blank subtitle becomes null summary', () => {
+	const result = mapBroadcastAnnouncements([
+		{ id: 2, title: '公告', subtitle: '  ', content: '内容', updateAt: 1000 },
+	])
+	assert.equal(result?.[0]?.summary, null)
+})
+
+test('skips entries missing required fields', () => {
+	const result = mapBroadcastAnnouncements([
+		{ id: 3, title: '有效', content: '内容', updateAt: 1000 },
+		{ id: 4, title: '', content: '内容', updateAt: 1000 },
+		{ title: '无 id', content: '内容', updateAt: 1000 },
+		{ id: 5, title: '无时间', content: '内容' },
+		null,
+		'不是对象',
+	])
+	assert.equal(result?.length, 1)
+	assert.equal(result?.[0]?.id, '3')
+})
+
+test('clamps importantLevel and maps priority boundaries', () => {
+	const result = mapBroadcastAnnouncements([
+		{ id: 6, title: 'a', content: 'x', updateAt: 1000, importantLevel: 0 },
+		{ id: 7, title: 'b', content: 'x', updateAt: 1000, importantLevel: 3 },
+		{ id: 8, title: 'c', content: 'x', updateAt: 1000, importantLevel: 6 },
+		{ id: 9, title: 'd', content: 'x', updateAt: 1000, importantLevel: 999 },
+	])
+	const byId = new Map(result?.map((item) => [item.id, item.priority]))
+	assert.equal(byId.get('6'), 'low')
+	assert.equal(byId.get('7'), 'normal')
+	assert.equal(byId.get('8'), 'high')
+	assert.equal(byId.get('9'), 'critical')
+})
+
+test('returns null for non-array payloads', () => {
+	assert.equal(mapBroadcastAnnouncements(null), null)
+	assert.equal(mapBroadcastAnnouncements({ payload: [] }), null)
+	assert.equal(mapBroadcastAnnouncements('nope'), null)
+})
+
+test('pinned announcements sort first', () => {
+	const result = mapBroadcastAnnouncements([
+		{ id: 10, title: '普通', content: 'x', updateAt: 2000, importantLevel: 9 },
+		{ id: 11, title: '置顶', content: 'x', updateAt: 1000, star: true },
+	])
+	assert.equal(result?.[0]?.id, '11')
+	assert.equal(result?.[1]?.id, '10')
+})

apps/app-frontend/src/helpers/remote-announcements.ts

@@ -5,6 +5,7 @@ export type RemoteAnnouncement = {
 	content: string
 	type: 'modal' | 'notification'
 	priority: 'low' | 'normal' | 'high' | 'critical'
+	pinned?: boolean
 	starts_at: string
 	ends_at: string | null
 	published_at: string
@@ -32,18 +33,28 @@ export function parseAnnouncements(value: unknown): RemoteAnnouncement[] | null
 		if (!entry || typeof entry !== 'object') continue
 		const item = entry as Record<string, unknown>
 		if (
-			typeof item.id !== 'string' || item.id.length > 100 || ids.has(item.id) ||
-			typeof item.title !== 'string' || !item.title.trim() || item.title.length > 120 ||
-			typeof item.content !== 'string' || item.content.length > 20000 ||
+			typeof item.id !== 'string' ||
+			item.id.length > 100 ||
+			ids.has(item.id) ||
+			typeof item.title !== 'string' ||
+			!item.title.trim() ||
+			item.title.length > 120 ||
+			typeof item.content !== 'string' ||
+			item.content.length > 20000 ||
 			(item.summary != null && (typeof item.summary !== 'string' || item.summary.length > 300)) ||
 			!['modal', 'notification'].includes(String(item.type)) ||
 			!['low', 'normal', 'high', 'critical'].includes(String(item.priority)) ||
-			typeof item.starts_at !== 'string' || !Number.isFinite(Date.parse(item.starts_at)) ||
-			typeof item.published_at !== 'string' || !Number.isFinite(Date.parse(item.published_at)) ||
-			(item.ends_at != null && (typeof item.ends_at !== 'string' || !Number.isFinite(Date.parse(item.ends_at)))) ||
-			(item.action_label != null && (typeof item.action_label !== 'string' || item.action_label.length > 80)) ||
+			typeof item.starts_at !== 'string' ||
+			!Number.isFinite(Date.parse(item.starts_at)) ||
+			typeof item.published_at !== 'string' ||
+			!Number.isFinite(Date.parse(item.published_at)) ||
+			(item.ends_at != null &&
+				(typeof item.ends_at !== 'string' || !Number.isFinite(Date.parse(item.ends_at)))) ||
+			(item.action_label != null &&
+				(typeof item.action_label !== 'string' || item.action_label.length > 80)) ||
 			(item.action_url != null && !safeAnnouncementUrl(item.action_url))
-		) continue
+		)
+			continue
 		ids.add(item.id)
 		items.push({
 			...item,
@@ -54,7 +65,12 @@ export function parseAnnouncements(value: unknown): RemoteAnnouncement[] | null
 		} as RemoteAnnouncement)
 	}
 	const rank = { low: 0, normal: 1, high: 2, critical: 3 }
-	return items.sort((first, second) => rank[second.priority] - rank[first.priority] || Date.parse(second.published_at) - Date.parse(first.published_at))
+	return items.sort(
+		(first, second) =>
+			Number(second.pinned ?? false) - Number(first.pinned ?? false) ||
+			rank[second.priority] - rank[first.priority] ||
+			Date.parse(second.published_at) - Date.parse(first.published_at),
+	)
 }
 
 export function isAnnouncementActive(item: RemoteAnnouncement, now = Date.now()) {
@@ -64,3 +80,76 @@ export function isAnnouncementActive(item: RemoteAnnouncement, now = Date.now())
 export function announcementKey(item: RemoteAnnouncement) {
 	return item.id + ':' + item.published_at
 }
+
+export const REMOTE_ANNOUNCEMENTS_UPDATED_EVENT = 'starlight:remote-announcements-updated'
+export const OPEN_REMOTE_ANNOUNCEMENT_CENTER_EVENT = 'starlight:open-remote-announcement-center'
+type BroadcastAnnouncementEntry = {
+	title?: unknown
+	subtitle?: unknown
+	content?: unknown
+	updateAt?: unknown
+	star?: unknown
+	importantLevel?: unknown
+	id?: unknown
+}
+
+function broadcastPriority(level: number): RemoteAnnouncement['priority'] {
+	if (level >= 9) return 'critical'
+	if (level >= 6) return 'high'
+	if (level >= 3) return 'normal'
+	return 'low'
+}
+
+export function mapBroadcastAnnouncements(payload: unknown): RemoteAnnouncement[] | null {
+	if (!Array.isArray(payload) || payload.length > 200) return null
+	const items: RemoteAnnouncement[] = []
+	const seen = new Set<string>()
+	for (const entry of payload) {
+		if (!entry || typeof entry !== 'object') continue
+		const item = entry as BroadcastAnnouncementEntry
+		if (
+			typeof item.id !== 'number' ||
+			!Number.isFinite(item.id) ||
+			typeof item.title !== 'string' ||
+			!item.title.trim() ||
+			item.title.length > 120 ||
+			typeof item.content !== 'string' ||
+			item.content.length > 20000 ||
+			typeof item.updateAt !== 'number' ||
+			!Number.isFinite(item.updateAt) ||
+			(item.subtitle != null && typeof item.subtitle !== 'string')
+		)
+			continue
+		const id = String(item.id)
+		if (seen.has(id)) continue
+		seen.add(id)
+		const level =
+			typeof item.importantLevel === 'number' && Number.isFinite(item.importantLevel)
+				? Math.max(0, Math.min(10, Math.floor(item.importantLevel)))
+				: 0
+		const starred = item.star === true
+		const published = new Date(item.updateAt).toISOString()
+		const summary = typeof item.subtitle === 'string' && item.subtitle.trim() ? item.subtitle : null
+		items.push({
+			id,
+			title: item.title,
+			summary,
+			content: item.content,
+			type: starred || level >= 8 ? 'modal' : 'notification',
+			priority: broadcastPriority(level),
+			pinned: starred,
+			starts_at: published,
+			ends_at: null,
+			published_at: published,
+			action_url: null,
+			action_label: null,
+		})
+	}
+	const rank = { low: 0, normal: 1, high: 2, critical: 3 }
+	return items.sort(
+		(first, second) =>
+			Number(second.pinned ?? false) - Number(first.pinned ?? false) ||
+			rank[second.priority] - rank[first.priority] ||
+			Date.parse(second.published_at) - Date.parse(first.published_at),
+	)
+}

apps/app-frontend/src/helpers/scroll-top-state.ts

@@ -0,0 +1,20 @@
+const SHOW_SCROLL_TOP_STORAGE_KEY = 'starlight-show-scroll-top'
+const QUICK_SCROLL_ENABLED_STORAGE_KEY = 'starlight-quick-scroll-enabled'
+
+export function getShowScrollTop(): boolean {
+	const value = localStorage.getItem(SHOW_SCROLL_TOP_STORAGE_KEY)
+	return value !== 'false'
+}
+
+export function setShowScrollTop(show: boolean) {
+	localStorage.setItem(SHOW_SCROLL_TOP_STORAGE_KEY, String(show))
+}
+
+export function getQuickScrollEnabled(): boolean {
+	const value = localStorage.getItem(QUICK_SCROLL_ENABLED_STORAGE_KEY)
+	return value === 'true'
+}
+
+export function setQuickScrollEnabled(enabled: boolean) {
+	localStorage.setItem(QUICK_SCROLL_ENABLED_STORAGE_KEY, String(enabled))
+}

apps/app-frontend/src/helpers/shortcut-actions.ts

@@ -0,0 +1,309 @@
+import { defineMessages, type KeyBinding, type MessageDescriptor } from '@modrinth/ui'
+import type { RouteLocationNormalizedLoaded } from 'vue-router'
+
+import { getLastBrowseContentProjectType, isBrowseContentProjectType } from '@/helpers/settings'
+
+/** Which half of the settings page an action belongs to. */
+export type ShortcutGroupId = 'scroll' | 'nav'
+
+/** Theme store fields that switch an action on. */
+export type ShortcutEnabledField =
+	| 'quickScrollEnabled'
+	| 'shortcutNavHome'
+	| 'shortcutNavWorlds'
+	| 'shortcutNavDiscover'
+	| 'shortcutNavSkins'
+	| 'shortcutNavMultiplayer'
+	| 'shortcutNavLibrary'
+	| 'shortcutNavLab'
+	| 'shortcutNavDownloads'
+	| 'shortcutNavCreate'
+	| 'shortcutNavSettings'
+
+export interface ShortcutContext {
+	worldsTabEnabled: boolean
+	offline: boolean
+}
+
+export interface ShortcutAction {
+	/** Stable id, used for the binding, the enable flag and the settings row. */
+	id: string
+	group: ShortcutGroupId
+	enabledField: ShortcutEnabledField
+	defaultBinding: KeyBinding
+	label: MessageDescriptor
+	description: MessageDescriptor
+	/** Navigation actions know where they lead. */
+	target?: (route: RouteLocationNormalizedLoaded) => string
+	/** Navigation actions that are not reachable right now. */
+	unavailable?: (context: ShortcutContext) => boolean
+	/** Scrolling actions move the page's own scroller. */
+	applyScroll?: (scroller: HTMLElement) => void
+}
+
+/**
+ * Declared here rather than assembled from the action ids, so the extractor can
+ * see them; an id built at runtime is one a translation pass would drop.
+ */
+const messages = defineMessages({
+	scrollTop: {
+		id: 'app.shortcut-settings.home-action',
+		defaultMessage: 'Scroll to the top',
+	},
+	scrollTopDescription: {
+		id: 'app.shortcut-settings.home-action-description',
+		defaultMessage: 'Moves the page you are reading to the top.',
+	},
+	scrollBottom: {
+		id: 'app.shortcut-settings.end-action',
+		defaultMessage: 'Scroll to the bottom',
+	},
+	scrollBottomDescription: {
+		id: 'app.shortcut-settings.end-action-description',
+		defaultMessage: 'Moves the page you are reading to the bottom.',
+	},
+	scrollUp: {
+		id: 'app.shortcut-settings.page-up-action',
+		defaultMessage: 'Scroll up one screen',
+	},
+	scrollUpDescription: {
+		id: 'app.shortcut-settings.page-up-action-description',
+		defaultMessage: 'Moves the page you are reading up by one screen.',
+	},
+	scrollDown: {
+		id: 'app.shortcut-settings.page-down-action',
+		defaultMessage: 'Scroll down one screen',
+	},
+	scrollDownDescription: {
+		id: 'app.shortcut-settings.page-down-action-description',
+		defaultMessage: 'Moves the page you are reading down by one screen.',
+	},
+	navHome: { id: 'app.shortcut-settings.nav-home', defaultMessage: 'Home' },
+	navHomeDescription: {
+		id: 'app.shortcut-settings.nav-home-description',
+		defaultMessage: 'Jump to the Home page.',
+	},
+	navWorlds: { id: 'app.shortcut-settings.nav-worlds', defaultMessage: 'Worlds' },
+	navWorldsDescription: {
+		id: 'app.shortcut-settings.nav-worlds-description',
+		defaultMessage: 'Jump to your worlds.',
+	},
+	navDiscover: {
+		id: 'app.shortcut-settings.nav-discover',
+		defaultMessage: 'Discover content',
+	},
+	navDiscoverDescription: {
+		id: 'app.shortcut-settings.nav-discover-description',
+		defaultMessage: 'Jump to browsing content.',
+	},
+	navSkins: { id: 'app.shortcut-settings.nav-skins', defaultMessage: 'Skin selector' },
+	navSkinsDescription: {
+		id: 'app.shortcut-settings.nav-skins-description',
+		defaultMessage: 'Jump to the skin selector.',
+	},
+	navMultiplayer: { id: 'app.shortcut-settings.nav-multiplayer', defaultMessage: 'Multiplayer' },
+	navMultiplayerDescription: {
+		id: 'app.shortcut-settings.nav-multiplayer-description',
+		defaultMessage: 'Jump to multiplayer.',
+	},
+	navLibrary: { id: 'app.shortcut-settings.nav-library', defaultMessage: 'Library' },
+	navLibraryDescription: {
+		id: 'app.shortcut-settings.nav-library-description',
+		defaultMessage: 'Jump to your library.',
+	},
+	navLab: { id: 'app.shortcut-settings.nav-lab', defaultMessage: 'Lab' },
+	navLabDescription: {
+		id: 'app.shortcut-settings.nav-lab-description',
+		defaultMessage: 'Jump to the Lab.',
+	},
+	navDownloads: { id: 'app.shortcut-settings.nav-downloads', defaultMessage: 'Downloads' },
+	navDownloadsDescription: {
+		id: 'app.shortcut-settings.nav-downloads-description',
+		defaultMessage: 'Jump to downloads.',
+	},
+	navCreate: { id: 'app.shortcut-settings.nav-create', defaultMessage: 'Create new instance' },
+	navCreateDescription: {
+		id: 'app.shortcut-settings.nav-create-description',
+		defaultMessage: 'Jump to creating a new instance.',
+	},
+	navSettings: { id: 'app.shortcut-settings.nav-settings', defaultMessage: 'Settings' },
+	navSettingsDescription: {
+		id: 'app.shortcut-settings.nav-settings-description',
+		defaultMessage: 'Jump to the settings.',
+	},
+})
+
+function keyboard(code: string, mod = false, alt = false, shift = false): KeyBinding {
+	return { device: 'keyboard', code, mod, alt, shift }
+}
+
+/**
+ * Resolves the Discover content target from the current route, so the nav
+ * button and the keyboard shortcut share one source of truth.
+ */
+export function discoverContentTarget(route: RouteLocationNormalizedLoaded): string {
+	const projectType = route.params.projectType
+	if (
+		!route.query.i &&
+		!route.query.sid &&
+		!route.query.wid &&
+		typeof projectType === 'string' &&
+		isBrowseContentProjectType(projectType)
+	) {
+		return `/browse/${projectType}`
+	}
+
+	return `/browse/${getLastBrowseContentProjectType()}`
+}
+
+/**
+ * Every shortcut the launcher answers to. The binding here is the one a fresh
+ * install uses; a recorded binding is stored separately and wins over it.
+ */
+export const SHORTCUT_ACTIONS: ShortcutAction[] = [
+	{
+		id: 'shortcutScrollTop',
+		group: 'scroll',
+		enabledField: 'quickScrollEnabled',
+		defaultBinding: keyboard('Home'),
+		label: messages.scrollTop,
+		description: messages.scrollTopDescription,
+		applyScroll: (scroller) => scroller.scrollTo({ top: 0, behavior: 'smooth' }),
+	},
+	{
+		id: 'shortcutScrollBottom',
+		group: 'scroll',
+		enabledField: 'quickScrollEnabled',
+		defaultBinding: keyboard('End'),
+		label: messages.scrollBottom,
+		description: messages.scrollBottomDescription,
+		applyScroll: (scroller) =>
+			scroller.scrollTo({ top: scroller.scrollHeight, behavior: 'smooth' }),
+	},
+	{
+		id: 'shortcutScrollUp',
+		group: 'scroll',
+		enabledField: 'quickScrollEnabled',
+		defaultBinding: keyboard('PageUp'),
+		label: messages.scrollUp,
+		description: messages.scrollUpDescription,
+		applyScroll: (scroller) => {
+			// Immediate scrolling keeps rapid key repeats responsive.
+			scroller.scrollTop = Math.max(0, scroller.scrollTop - scroller.clientHeight * 0.9)
+		},
+	},
+	{
+		id: 'shortcutScrollDown',
+		group: 'scroll',
+		enabledField: 'quickScrollEnabled',
+		defaultBinding: keyboard('PageDown'),
+		label: messages.scrollDown,
+		description: messages.scrollDownDescription,
+		applyScroll: (scroller) => {
+			scroller.scrollTop = Math.min(
+				scroller.scrollHeight,
+				scroller.scrollTop + scroller.clientHeight * 0.9,
+			)
+		},
+	},
+	{
+		id: 'shortcutNavHome',
+		group: 'nav',
+		enabledField: 'shortcutNavHome',
+		defaultBinding: keyboard('Digit1', true),
+		label: messages.navHome,
+		description: messages.navHomeDescription,
+		target: () => '/',
+	},
+	{
+		id: 'shortcutNavWorlds',
+		group: 'nav',
+		enabledField: 'shortcutNavWorlds',
+		defaultBinding: keyboard('Digit2', true),
+		label: messages.navWorlds,
+		description: messages.navWorldsDescription,
+		target: () => '/worlds',
+		unavailable: (context) => !context.worldsTabEnabled,
+	},
+	{
+		id: 'shortcutNavDiscover',
+		group: 'nav',
+		enabledField: 'shortcutNavDiscover',
+		defaultBinding: keyboard('Digit3', true),
+		label: messages.navDiscover,
+		description: messages.navDiscoverDescription,
+		target: (route) => discoverContentTarget(route),
+		unavailable: (context) => context.offline,
+	},
+	{
+		id: 'shortcutNavSkins',
+		group: 'nav',
+		enabledField: 'shortcutNavSkins',
+		defaultBinding: keyboard('Digit4', true),
+		label: messages.navSkins,
+		description: messages.navSkinsDescription,
+		target: () => '/skins',
+	},
+	{
+		id: 'shortcutNavMultiplayer',
+		group: 'nav',
+		enabledField: 'shortcutNavMultiplayer',
+		defaultBinding: keyboard('Digit5', true),
+		label: messages.navMultiplayer,
+		description: messages.navMultiplayerDescription,
+		target: () => '/multiplayer',
+	},
+	{
+		id: 'shortcutNavLibrary',
+		group: 'nav',
+		enabledField: 'shortcutNavLibrary',
+		defaultBinding: keyboard('Digit6', true),
+		label: messages.navLibrary,
+		description: messages.navLibraryDescription,
+		target: () => '/library',
+	},
+	{
+		id: 'shortcutNavLab',
+		group: 'nav',
+		enabledField: 'shortcutNavLab',
+		defaultBinding: keyboard('Digit7', true),
+		label: messages.navLab,
+		description: messages.navLabDescription,
+		target: () => '/lab',
+	},
+	{
+		id: 'shortcutNavDownloads',
+		group: 'nav',
+		enabledField: 'shortcutNavDownloads',
+		defaultBinding: keyboard('Digit8', true),
+		label: messages.navDownloads,
+		description: messages.navDownloadsDescription,
+		target: () => '/downloads',
+	},
+	{
+		id: 'shortcutNavCreate',
+		group: 'nav',
+		enabledField: 'shortcutNavCreate',
+		defaultBinding: keyboard('Digit9', true),
+		label: messages.navCreate,
+		description: messages.navCreateDescription,
+		target: () => '/create',
+		unavailable: (context) => context.offline,
+	},
+	{
+		id: 'shortcutNavSettings',
+		group: 'nav',
+		enabledField: 'shortcutNavSettings',
+		defaultBinding: keyboard('Comma', true),
+		label: messages.navSettings,
+		description: messages.navSettingsDescription,
+		target: () => '/settings',
+	},
+]
+
+export const SCROLL_ACTIONS = SHORTCUT_ACTIONS.filter((action) => action.group === 'scroll')
+export const NAV_ACTIONS = SHORTCUT_ACTIONS.filter((action) => action.group === 'nav')
+
+export function shortcutAction(id: string): ShortcutAction | undefined {
+	return SHORTCUT_ACTIONS.find((action) => action.id === id)
+}

apps/app-frontend/src/helpers/shortcut-bindings.ts

@@ -0,0 +1,120 @@
+import type { BindingConflict, KeyBinding } from '@modrinth/ui'
+
+import { SHORTCUT_ACTIONS, shortcutAction } from '@/helpers/shortcut-actions'
+
+const BINDING_STORAGE_PREFIX = 'starlight-shortcut-binding-'
+
+/**
+ * Combinations the shell or the operating system answers to before the launcher
+ * sees them. Saved shortcuts may not take these over.
+ */
+export const RESERVED_BINDINGS: BindingConflict[] = [
+	{
+		id: 'system-find',
+		label: 'Find in page (Ctrl/Cmd + F)',
+		binding: keyboard('KeyF', true),
+		reserved: true,
+	},
+	{
+		id: 'system-devtools',
+		label: 'Developer tools (F12)',
+		binding: keyboard('F12'),
+		reserved: true,
+	},
+	{
+		id: 'system-close',
+		label: 'Close window (Ctrl/Cmd + W)',
+		binding: keyboard('KeyW', true),
+		reserved: true,
+	},
+	{
+		id: 'system-quit',
+		label: 'Quit (Ctrl/Cmd + Q)',
+		binding: keyboard('KeyQ', true),
+		reserved: true,
+	},
+	{
+		id: 'system-reload',
+		label: 'Reload (Ctrl/Cmd + R)',
+		binding: keyboard('KeyR', true),
+		reserved: true,
+	},
+	{ id: 'system-refresh', label: 'Refresh (F5)', binding: keyboard('F5'), reserved: true },
+	{
+		id: 'system-exit',
+		label: 'Close window (Alt + F4)',
+		binding: keyboard('F4', false, true),
+		reserved: true,
+	},
+]
+
+function keyboard(code: string, mod = false, alt = false, shift = false): KeyBinding {
+	return { device: 'keyboard', code, mod, alt, shift }
+}
+
+function isKeyBinding(value: unknown): value is KeyBinding {
+	if (!value || typeof value !== 'object') return false
+	const candidate = value as Partial<KeyBinding>
+	return (
+		(candidate.device === 'keyboard' || candidate.device === 'mouse') &&
+		typeof candidate.code === 'string' &&
+		candidate.code.length > 0 &&
+		typeof candidate.mod === 'boolean' &&
+		typeof candidate.shift === 'boolean' &&
+		typeof candidate.alt === 'boolean'
+	)
+}
+
+/** The combination recorded for an action, if it has one. */
+export function readStoredBinding(id: string): KeyBinding | null {
+	const raw = localStorage.getItem(BINDING_STORAGE_PREFIX + id)
+	if (!raw) return null
+
+	try {
+		const parsed = JSON.parse(raw)
+		return isKeyBinding(parsed) ? parsed : null
+	} catch {
+		// A value that cannot be read is treated as unset, so the action keeps
+		// working with its default rather than becoming unreachable.
+		return null
+	}
+}
+
+export function storeBinding(id: string, binding: KeyBinding) {
+	localStorage.setItem(BINDING_STORAGE_PREFIX + id, JSON.stringify(binding))
+}
+
+/** Drops the recorded combination, putting the action back on its default. */
+export function clearStoredBinding(id: string) {
+	if (readStoredBinding(id)) localStorage.removeItem(BINDING_STORAGE_PREFIX + id)
+}
+
+/** The combination an action answers to now: the recorded one, or its default. */
+export function resolveBinding(id: string): KeyBinding | null {
+	const action = shortcutAction(id)
+	if (!action) return null
+	return readStoredBinding(id) ?? action.defaultBinding
+}
+
+export function resolveAllBindings(): Record<string, KeyBinding> {
+	const bindings: Record<string, KeyBinding> = {}
+	for (const action of SHORTCUT_ACTIONS) {
+		bindings[action.id] = resolveBinding(action.id) ?? action.defaultBinding
+	}
+	return bindings
+}
+
+/**
+ * Everything a new combination would collide with: the other actions, plus the
+ * combinations the shell owns. `label` is what the dialog names in the error.
+ */
+export function buildConflicts(exceptId: string, label: (id: string) => string): BindingConflict[] {
+	const conflicts = SHORTCUT_ACTIONS.filter((action) => action.id !== exceptId).flatMap(
+		(action) => {
+			const binding = resolveBinding(action.id)
+			return binding ? [{ id: action.id, label: label(action.id), binding }] : []
+		},
+	)
+
+	return [...conflicts, ...RESERVED_BINDINGS]
+}

apps/app-frontend/src/helpers/skin-armor-preview.test.ts

@@ -0,0 +1,60 @@
+import assert from 'node:assert/strict'
+import test from 'node:test'
+
+import { loadSkinArmorPreview, saveSkinArmorPreview } from './skin-armor-preview.ts'
+
+const originalStorage = Object.getOwnPropertyDescriptor(globalThis, 'localStorage')
+
+function withStorage(run: (values: Map<string, string>) => void): void {
+	const values = new Map<string, string>()
+	Object.defineProperty(globalThis, 'localStorage', {
+		configurable: true,
+		value: {
+			getItem: (key: string) => values.get(key) ?? null,
+			setItem: (key: string, value: string) => values.set(key, value),
+		},
+	})
+	try {
+		run(values)
+	} finally {
+		if (originalStorage) Object.defineProperty(globalThis, 'localStorage', originalStorage)
+		else delete (globalThis as { localStorage?: Storage }).localStorage
+	}
+}
+
+test('armor preview selections survive storage round trips', () => {
+	withStorage(() => {
+		const config = loadSkinArmorPreview()
+		config.helmet.material = 'diamond'
+		config.helmet.trimPattern = 'sentry'
+		config.helmet.trimMaterial = 'gold'
+		saveSkinArmorPreview(config)
+
+		assert.deepEqual(loadSkinArmorPreview(), config)
+	})
+})
+
+test('invalid stored armor values fall back per slot and field', () => {
+	withStorage((values) => {
+		values.set(
+			'axolotl:skin-armor-preview',
+			JSON.stringify({
+				helmet: { material: 'diamond', trimPattern: 'invalid', trimMaterial: 'gold' },
+				boots: { material: 'turtle', trimPattern: 'sentry', trimMaterial: 'invalid' },
+			}),
+		)
+
+		const config = loadSkinArmorPreview()
+		assert.deepEqual(config.helmet, {
+			material: 'diamond',
+			trimPattern: null,
+			trimMaterial: 'gold',
+		})
+		assert.deepEqual(config.boots, {
+			material: null,
+			trimPattern: 'sentry',
+			trimMaterial: 'iron',
+		})
+		assert.equal(config.chestplate.material, null)
+	})
+})

apps/app-frontend/src/helpers/skin-armor-preview.ts

@@ -0,0 +1,47 @@
+import {
+	ARMOR_SLOTS,
+	ARMOR_TRIM_MATERIALS,
+	ARMOR_TRIM_PATTERNS,
+	armorMaterialsForSlot,
+	type ArmorPreviewConfig,
+	createDefaultArmorPreviewConfig,
+} from '@modrinth/ui'
+
+const STORAGE_KEY = 'axolotl:skin-armor-preview'
+
+function includes<T extends string>(values: readonly T[], value: unknown): value is T {
+	return typeof value === 'string' && values.some((item) => item === value)
+}
+
+export function loadSkinArmorPreview(): ArmorPreviewConfig {
+	const config = createDefaultArmorPreviewConfig()
+	try {
+		const saved = JSON.parse(globalThis.localStorage?.getItem(STORAGE_KEY) ?? 'null')
+		if (!saved || typeof saved !== 'object' || Array.isArray(saved)) return config
+
+		for (const slot of ARMOR_SLOTS) {
+			const piece = saved[slot]
+			if (!piece || typeof piece !== 'object' || Array.isArray(piece)) continue
+			if (piece.material === null || includes(armorMaterialsForSlot(slot), piece.material)) {
+				config[slot].material = piece.material
+			}
+			if (piece.trimPattern === null || includes(ARMOR_TRIM_PATTERNS, piece.trimPattern)) {
+				config[slot].trimPattern = piece.trimPattern
+			}
+			if (includes(ARMOR_TRIM_MATERIALS, piece.trimMaterial)) {
+				config[slot].trimMaterial = piece.trimMaterial
+			}
+		}
+	} catch {
+		// Invalid or unavailable local storage falls back to a fresh preview.
+	}
+	return config
+}
+
+export function saveSkinArmorPreview(config: ArmorPreviewConfig): void {
+	try {
+		globalThis.localStorage?.setItem(STORAGE_KEY, JSON.stringify(config))
+	} catch {
+		// The preview remains usable when local storage is unavailable.
+	}
+}

apps/app-frontend/src/helpers/types.d.ts

@@ -55,6 +55,7 @@ export type GameInstance = {
 	force_fullscreen?: boolean
 	maximize_window?: boolean
 	game_resolution?: [number, number]
+	window_title?: string | null
 	launch_preparation_timeout?: number | null
 	hooks: Hooks
 }
@@ -239,6 +240,8 @@ type AppSettings = {
 	force_fullscreen: boolean
 	maximize_window: boolean
 	game_resolution: [number, number]
+	custom_window_title_enabled: boolean
+	default_window_title: string
 	hide_on_process_start: boolean
 	enter_lightweight_mode_on_game_launch: boolean
 	auto_set_java_high_performance_mode: boolean

apps/app-frontend/src/helpers/utils.js

@@ -81,6 +81,38 @@ export async function exportErrorLogs(
 	return await invoke('plugin:utils|export_error_logs', { outputPath, errorMessage })
 }
 
+export async function exportLauncherLogs({
+	range = 'last2Hours',
+	level = 'all',
+	includeSystemInfo = true,
+	includeInstanceLogs = false,
+	includeCrashAnalysis = false,
+	fileNamePrefix = 'Starlight Launcher logs',
+} = {}) {
+	const timestamp = new Date().toISOString().replace(/[:.]/g, '-')
+	const outputPath = await save({
+		defaultPath: `${fileNamePrefix} ${timestamp}.zip`,
+		filters: [
+			{
+				name: 'ZIP archive',
+				extensions: ['zip'],
+			},
+		],
+	})
+
+	if (!outputPath) return null
+
+	await invoke('plugin:utils|export_launcher_logs', {
+		outputPath,
+		range,
+		level,
+		includeSystemInfo,
+		includeInstanceLogs,
+		includeCrashAnalysis,
+	})
+	return outputPath
+}
+
 export async function createInstanceShortcut(instanceName, instanceId, options = {}) {
 	const outputPath = await save({
 		defaultPath: `Modrinth - ${instanceName}`,

apps/app-frontend/src/locales/en-US/index.json

@@ -11431,5 +11431,261 @@
   },
   "app.anniversary.banner": {
     "message": "Happy {ordinal} Anniversary, Starlight!"
-  }
+  },
+  "instance.settings.tabs.window.window-title": {
+    "message": "Window title"
+  },
+  "instance.settings.tabs.window.window-title.description": {
+    "message": "Customize the Minecraft window title. Leave empty to keep the default."
+  },
+  "instance.settings.tabs.window.window-title.enter": {
+    "message": "Enter window title..."
+  },
+  "app.settings.defaults.window-title.enabled": {
+    "message": "Custom Minecraft window title"
+  },
+  "app.settings.defaults.window-title.enabled-description": {
+    "message": "Allow instances to customize the Minecraft window title."
+  },
+  "app.settings.defaults.window-title.default": {
+    "message": "Default window title"
+  },
+  "app.settings.defaults.window-title.default-description": {
+    "message": "Used when an instance does not provide its own title."
+  },
+  "app.settings.defaults.window-title.default-placeholder": {
+    "message": "Enter the default window title..."
+  },
+  "app.action-bar.announcements": {
+    "message": "Announcements"
+  },
+  "app.remote-announcements.center-title": {
+    "message": "Announcements"
+  },
+  "app.remote-announcements.empty": {
+    "message": "No announcements"
+  },
+  "app.remote-announcements.view": {
+    "message": "View announcement"
+  },
+  "app.remote-announcements.unread": {
+    "message": "Unread"
+  },
+  "app.remote-announcements.read-all": {
+    "message": "Mark all announcements as read"
+  },
+  "app.remote-announcements.preview-title": {
+    "message": "Announcement style preview"
+  },
+  "app.remote-announcements.preview-summary": {
+    "message": "This is a local preview notification. Select View announcement to see the full Markdown content."
+  },
+  "app.remote-announcements.preview-content": {
+    "message": "## Announcement preview\n\nThis is **sample content**, not a published announcement.\n\n- Supports headings, lists, and links\n- Close buttons are always available\n\n> Previewing does not change real announcement read status.\n\n| Type | Display |\n| --- | --- |\n| Modal | Full Markdown content |\n| Popup | Summary, then full content |\n\n[Visit the website](https://skin.starlight.cool/)"
+  },
+  "app.remote-announcements.preview-action": {
+    "message": "Visit website"
+  },
+  "app.settings.tabs.logs": {
+    "message": "Logs & diagnostics"
+  },
+  "app.settings.logs.export.title": {
+    "message": "Export logs"
+  },
+  "app.settings.logs.export.description": {
+    "message": "Package launcher logs with an optional environment summary, instance log, and crash analysis."
+  },
+  "app.settings.logs.export.button": {
+    "message": "Export logs…"
+  },
+  "app.settings.logs.open-folder": {
+    "message": "Open logs folder"
+  },
+  "app.settings.logs.export.modal.title": {
+    "message": "Export logs"
+  },
+  "app.settings.logs.export.modal.description": {
+    "message": "Choose how much detail to include. Exported logs have access tokens, Minecraft tokens, and IP addresses replaced with placeholders."
+  },
+  "app.settings.logs.export.modal.range": {
+    "message": "Time range"
+  },
+  "app.settings.logs.export.modal.range.30-minutes": {
+    "message": "Last 30 minutes"
+  },
+  "app.settings.logs.export.modal.range.2-hours": {
+    "message": "Last 2 hours"
+  },
+  "app.settings.logs.export.modal.range.all": {
+    "message": "All sessions"
+  },
+  "app.settings.logs.export.modal.level": {
+    "message": "Log level"
+  },
+  "app.settings.logs.export.modal.level.all": {
+    "message": "All levels"
+  },
+  "app.settings.logs.export.modal.level.debug": {
+    "message": "Debug and above"
+  },
+  "app.settings.logs.export.modal.level.info": {
+    "message": "Info and above"
+  },
+  "app.settings.logs.export.modal.extras": {
+    "message": "Additional information"
+  },
+  "app.settings.logs.export.modal.system-info": {
+    "message": "System and environment summary"
+  },
+  "app.settings.logs.export.modal.instance-logs": {
+    "message": "Most recent instance log"
+  },
+  "app.settings.logs.export.modal.crash-analysis": {
+    "message": "Crash analysis (when a crash is detected)"
+  },
+  "app.settings.logs.export.modal.cancel": {
+    "message": "Cancel"
+  },
+  "app.settings.logs.export.modal.confirm": {
+    "message": "Export"
+  },
+  "app.settings.logs.export.notification-title": {
+    "message": "Logs exported"
+  },
+  "app.settings.logs.export.notification-text": {
+    "message": "The log archive was saved to {path}"
+  },
+  "app.skins.armor.title": {"message": "Armour and trims"},
+  "app.skins.armor.save": {"message": "Save"},
+  "app.skins.armor.close": {"message": "Close"},
+  "app.skins.armor.description": {"message": "Try armour and trims on your skin. Nothing is stored until you save it."},
+  "app.skins.armor.unsaved": {"message": "Unsaved changes"},
+  "app.skins.armor.reset-to-saved": {"message": "Reset to saved"},
+  "app.skins.armor.restore-defaults": {"message": "Restore defaults"},
+  "app.instances.batch-edit-groups.add": {"message": "Add"},
+  "app.instances.batch-edit-groups.add-to-group-title": {"message": "Add instances to \"{groupName}\""},
+  "app.instances.batch-edit-groups.added": {"message": "Added"},
+  "app.instances.batch-edit-groups.cancel": {"message": "Cancel"},
+  "app.instances.batch-edit-groups.create": {"message": "Create group"},
+  "app.instances.batch-edit-groups.group-name": {"message": "Group name"},
+  "app.instances.batch-edit-groups.group-name-placeholder": {"message": "Enter group name"},
+  "app.instances.batch-edit-groups.no-instances-found": {"message": "No instances found"},
+  "app.instances.batch-edit-groups.save-changes": {"message": "Save"},
+  "app.instances.batch-edit-groups.search-instance": {"message": "Search instances"},
+  "app.instances.group.add-to-group": {"message": "Add to group"},
+  "app.instances.group.collapse": {"message": "Collapse group"},
+  "app.instances.group.delete-description": {"message": "Instances in this group will be ungrouped."},
+  "app.instances.group.delete-group": {"message": "Delete group"},
+  "app.instances.group.edit-name": {"message": "Edit group name"},
+  "app.instances.group.empty": {"message": "Drag and drop to add instances."},
+  "app.instances.group.expand": {"message": "Expand group"},
+  "app.instances.group.move-down": {"message": "Move group down"},
+  "app.instances.group.move-up": {"message": "Move group up"},
+  "app.instances.group.name-empty": {"message": "Group names cannot be empty."},
+  "app.instances.group.name-too-long": {"message": "Group names cannot be longer than {maxLength} characters."},
+  "app.instances.group.new-instance": {"message": "New instance"},
+  "app.instances.group.pinned": {"message": "Pinned"},
+  "app.instances.group.rename-group": {"message": "Rename group"},
+  "app.instances.sort-by": {"message": "Sort by"},
+  "app.instances.sort.direction.asc-alphabetical": {"message": "A–Z"},
+  "app.instances.sort.direction.asc-date": {"message": "Oldest first"},
+  "app.instances.sort.direction.asc-recency": {"message": "Least recent first"},
+  "app.instances.sort.direction.asc-version": {"message": "Oldest version first"},
+  "app.instances.sort.direction.desc-alphabetical": {"message": "Z–A"},
+  "app.instances.sort.direction.desc-date": {"message": "Newest first"},
+  "app.instances.sort.direction.desc-recency": {"message": "Most recent first"},
+  "app.instances.sort.direction.desc-version": {"message": "Newest version first"},
+  "app.library.context-menu.pin-instance": {"message": "Pin instance"},
+  "app.library.context-menu.remove-from-group": {"message": "Remove from group"},
+  "app.library.context-menu.unpin-instance": {"message": "Unpin instance"},
+  "app.library.group.new": {"message": "New group"},
+  "app.library.selection.new-group": {"message": "New group"},
+  "app.library.selection.remove-from-group": {"message": "Remove from group"},
+  "app.log-share.settings.title": {"message": "Log sharing & AI analysis"},
+  "app.log-share.settings.description": {"message": "Share crash diagnostics with LogShare for a structured summary and optional AI analysis. LogShare is preferred; mclo.gs is used as a fallback."},
+  "app.log-share.settings.share-provider": {"message": "Log sharing service"},
+  "app.log-share.settings.share-provider-description": {"message": "Where the diagnostic link is uploaded when you share it."},
+  "app.log-share.settings.ai-source": {"message": "AI analysis source"},
+  "app.log-share.settings.ai-source-logshare": {"message": "LogShare AI"},
+  "app.log-share.settings.ai-source-custom": {"message": "Custom AI provider"},
+  "app.log-share.settings.ai-source-description": {"message": "Both sources send a sanitized and shortened crash context. AI output may be inaccurate."},
+  "app.log-share.settings.auto-upload": {"message": "Upload to get a structured summary automatically"},
+  "app.log-share.settings.auto-upload-description": {"message": "Only effective in LogShare AI mode."},
+  "app.log-share.settings.multi-file": {"message": "Multi-file upload"},
+  "app.log-share.settings.multi-file-description": {"message": "Upload latest.log, crash reports, hs_err and launcher logs together."},
+  "app.log-share.settings.no-storage": {"message": "Analyze without storing logs"},
+  "app.log-share.settings.no-storage-description": {"message": "Submit content directly for analysis and skip the stored upload. Disables the automatic summary."},
+  "app.log-share.settings.show-progress": {"message": "Show AI analysis progress"},
+  "app.log-share.settings.show-progress-description": {"message": "Display thinking, tool and limit status while LogShare AI is working."},
+  "app.log-share.shared-logs.title": {"message": "Shared logs"},
+  "app.log-share.shared-logs.description": {"message": "Every diagnostic you have shared is listed here. Delete an entry to remove it from your history and request its removal from the sharing service."},
+  "app.log-share.shared-logs.empty": {"message": "No shared logs yet."},
+  "app.log-share.shared-logs.delete": {"message": "Delete"},
+  "app.log-share.shared-logs.deleting": {"message": "Deleting…"},
+  "app.log-share.shared-logs.deleted": {"message": "Shared log removed."},
+  "app.log-share.shared-logs.delete-failed": {"message": "Failed to delete the shared log."},
+  "app.log-share.shared-logs.truncated": {"message": "Truncated"},
+  "app.minecraft-crash.share-fallback": {"message": "LogShare is unavailable, so the diagnostic was shared via mclo.gs."},
+  "app.log-share.ai.action": {"message": "Deep AI analysis"},
+  "app.log-share.summary.title": {"message": "LogShare analysis"},
+  "app.log-share.summary.loading": {"message": "Loading structured summary..."},
+  "app.log-share.summary.empty": {"message": "LogShare did not return a structured summary for these logs."},
+  "app.log-share.summary.no-storage": {"message": "Structured summary is unavailable while no-storage mode is enabled."},
+  "app.log-share.summary.failed": {"message": "Could not load the LogShare summary: {message}"},
+  "app.log-share.summary.problems": {"message": "Problems"},
+  "app.log-share.summary.information": {"message": "Information"},
+  "app.minecraft-crash.logs.loading": {"message": "Loading crash logs..."},
+  "app.minecraft-crash.logs.empty": {"message": "No logs from this launch were found."},
+  "app.minecraft-crash.logs.failed": {"message": "Could not load the crash logs: {message}"},
+  "app.minecraft-crash.log-file.loading": {"message": "Loading log file..."},
+  "app.minecraft-crash.log-file.failed": {"message": "Could not load this log file: {message}"},
+  "app.log-share.ai.tab": {"message": "LogAgent detailed analysis"},
+  "app.log-share.ai.root-cause": {"message": "Core root cause"},
+  "app.log-share.ai.confidence": {"message": "Diagnostic confidence"},
+  "app.log-share.ai.steps": {"message": "Recommended troubleshooting steps"},
+  "app.log-share.ai.evidence": {"message": "Supporting evidence"},
+  "app.log-share.ai.thinking": {"message": "Thinking…"},
+  "app.log-share.ai.queued": {"message": "Queued, about {position} ahead"},
+  "app.log-share.ai.queued-front": {"message": "Queued, waiting for a free slot"},
+  "app.log-share.ai.tool": {"message": "Using tool: {name}"},
+  "app.log-share.ai.unknown-tool": {"message": "tool"},
+  "app.log-share.ai.tool-result": {"message": "Tool result received"},
+  "app.log-share.ai.limit": {"message": "Reached tool loop limit"},
+  "app.log-share.ai.working": {"message": "Analyzing with LogAgent…"},
+  "app.log-share.ai.failed": {"message": "LogAgent analysis failed: {message}"},
+  "app.shortcut-settings.change-shortcut": {"message": "Change the shortcut for {action}"},
+  "app.shortcut-settings.enable": {"message": "Enable quick scrolling"},
+  "app.shortcut-settings.end-action": {"message": "Scroll to the bottom"},
+  "app.shortcut-settings.end-action-description": {"message": "Moves the page you are reading to the bottom."},
+  "app.shortcut-settings.home-action": {"message": "Scroll to the top"},
+  "app.shortcut-settings.home-action-description": {"message": "Moves the page you are reading to the top."},
+  "app.shortcut-settings.nav-create": {"message": "Create new instance"},
+  "app.shortcut-settings.nav-create-description": {"message": "Jump to creating a new instance."},
+  "app.shortcut-settings.nav-description": {"message": "Jump to a menu item with its shortcut. Each shortcut is off until enabled."},
+  "app.shortcut-settings.nav-discover": {"message": "Discover content"},
+  "app.shortcut-settings.nav-discover-description": {"message": "Jump to browsing content."},
+  "app.shortcut-settings.nav-downloads": {"message": "Downloads"},
+  "app.shortcut-settings.nav-downloads-description": {"message": "Jump to downloads."},
+  "app.shortcut-settings.nav-home": {"message": "Home"},
+  "app.shortcut-settings.nav-home-description": {"message": "Jump to the Home page."},
+  "app.shortcut-settings.nav-lab": {"message": "Lab"},
+  "app.shortcut-settings.nav-lab-description": {"message": "Jump to the Lab."},
+  "app.shortcut-settings.nav-library": {"message": "Library"},
+  "app.shortcut-settings.nav-library-description": {"message": "Jump to your library."},
+  "app.shortcut-settings.nav-multiplayer": {"message": "Multiplayer"},
+  "app.shortcut-settings.nav-multiplayer-description": {"message": "Jump to multiplayer."},
+  "app.shortcut-settings.nav-settings": {"message": "Settings"},
+  "app.shortcut-settings.nav-settings-description": {"message": "Jump to the settings."},
+  "app.shortcut-settings.nav-skins": {"message": "Skin selector"},
+  "app.shortcut-settings.nav-skins-description": {"message": "Jump to the skin selector."},
+  "app.shortcut-settings.nav-title": {"message": "Navigation shortcuts"},
+  "app.shortcut-settings.nav-worlds": {"message": "Worlds"},
+  "app.shortcut-settings.nav-worlds-description": {"message": "Jump to your worlds."},
+  "app.shortcut-settings.page-down-action": {"message": "Scroll down one screen"},
+  "app.shortcut-settings.page-down-action-description": {"message": "Moves the page you are reading down by one screen."},
+  "app.shortcut-settings.page-up-action": {"message": "Scroll up one screen"},
+  "app.shortcut-settings.page-up-action-description": {"message": "Moves the page you are reading up by one screen."},
+  "app.shortcut-settings.scroll-description": {"message": "Move through long pages with the keyboard."},
+  "app.shortcut-settings.scroll-title": {"message": "Quick scrolling"},
+  "app.settings.tabs.shortcut-settings": {"message": "Keyboard shortcuts"}
 }

apps/app-frontend/src/locales/zh-CN/index.json

@@ -11351,5 +11351,172 @@
 	"app.settings.synced-options.game-settings.value-off": { "message": "关闭" },
 	"app.settings.synced-options.game-settings.value-on": { "message": "开启" },
 	"app.settings.synced-options.game-settings.value-unset": { "message": "选择一个值" },
-	"app.anniversary.banner": { "message": "Starlight {ordinal} 周年快乐！" }
+	"app.anniversary.banner": { "message": "Starlight {ordinal} 周年快乐！" },
+	"instance.settings.tabs.window.window-title": { "message": "窗口标题" },
+	"instance.settings.tabs.window.window-title.description": { "message": "自定义 Minecraft 窗口标题。留空则使用默认标题。" },
+	"instance.settings.tabs.window.window-title.enter": { "message": "输入窗口标题..." },
+	"app.settings.defaults.window-title.enabled": { "message": "自定义 Minecraft 窗口标题" },
+	"app.settings.defaults.window-title.enabled-description": { "message": "允许实例自定义 Minecraft 窗口标题。" },
+	"app.settings.defaults.window-title.default": { "message": "默认窗口标题" },
+	"app.settings.defaults.window-title.default-description": { "message": "当实例未提供自己的标题时使用。" },
+	"app.settings.defaults.window-title.default-placeholder": { "message": "输入默认窗口标题..." },
+	"app.action-bar.announcements": { "message": "公告" },
+	"app.remote-announcements.center-title": { "message": "公告" },
+	"app.remote-announcements.empty": { "message": "暂无公告" },
+	"app.settings.tabs.logs": { "message": "日志与诊断" },
+	"app.settings.logs.export.title": { "message": "导出日志" },
+	"app.settings.logs.export.description": { "message": "将启动器日志打包，可附带环境摘要、最近的实例日志与崩溃分析。" },
+	"app.settings.logs.export.button": { "message": "导出日志…" },
+	"app.settings.logs.open-folder": { "message": "打开日志文件夹" },
+	"app.settings.logs.export.modal.title": { "message": "导出日志" },
+	"app.settings.logs.export.modal.description": { "message": "选择要包含的详细程度。导出的日志会把访问令牌、Minecraft 令牌与 IP 地址替换为占位符。" },
+	"app.settings.logs.export.modal.range": { "message": "时间范围" },
+	"app.settings.logs.export.modal.range.30-minutes": { "message": "最近 30 分钟" },
+	"app.settings.logs.export.modal.range.2-hours": { "message": "最近 2 小时" },
+	"app.settings.logs.export.modal.range.all": { "message": "全部会话" },
+	"app.settings.logs.export.modal.level": { "message": "日志等级" },
+	"app.settings.logs.export.modal.level.all": { "message": "全部等级" },
+	"app.settings.logs.export.modal.level.debug": { "message": "DEBUG 及以上" },
+	"app.settings.logs.export.modal.level.info": { "message": "INFO 及以上" },
+	"app.settings.logs.export.modal.extras": { "message": "附加信息" },
+	"app.settings.logs.export.modal.system-info": { "message": "系统与环境摘要" },
+	"app.settings.logs.export.modal.instance-logs": { "message": "最近的实例日志" },
+	"app.settings.logs.export.modal.crash-analysis": { "message": "崩溃分析（检测到崩溃时）" },
+	"app.settings.logs.export.modal.cancel": { "message": "取消" },
+	"app.settings.logs.export.modal.confirm": { "message": "导出" },
+	"app.settings.logs.export.notification-title": { "message": "日志已导出" },
+	"app.settings.logs.export.notification-text": { "message": "日志压缩包已保存到 {path}" },
+  "app.skins.armor.title": {"message": "盔甲与纹饰"},
+  "app.skins.armor.save": {"message": "保存"},
+  "app.skins.armor.close": {"message": "关闭"},
+  "app.skins.armor.description": {"message": "在皮肤上试穿盔甲与纹饰。未保存前不会写入任何内容。"},
+  "app.skins.armor.unsaved": {"message": "有未保存的更改"},
+  "app.skins.armor.reset-to-saved": {"message": "重置为已保存"},
+  "app.skins.armor.restore-defaults": {"message": "恢复默认"},
+  "app.instances.batch-edit-groups.add": {"message": "添加"},
+  "app.instances.batch-edit-groups.add-to-group-title": {"message": "添加实例到「{groupName}」"},
+  "app.instances.batch-edit-groups.added": {"message": "已添加"},
+  "app.instances.batch-edit-groups.cancel": {"message": "取消"},
+  "app.instances.batch-edit-groups.create": {"message": "创建分组"},
+  "app.instances.batch-edit-groups.group-name": {"message": "分组名称"},
+  "app.instances.batch-edit-groups.group-name-placeholder": {"message": "输入分组名称"},
+  "app.instances.batch-edit-groups.no-instances-found": {"message": "未找到实例"},
+  "app.instances.batch-edit-groups.save-changes": {"message": "保存"},
+  "app.instances.batch-edit-groups.search-instance": {"message": "搜索实例"},
+  "app.instances.group.add-to-group": {"message": "添加到分组"},
+  "app.instances.group.collapse": {"message": "折叠分组"},
+  "app.instances.group.delete-description": {"message": "此分组中的实例将被取消分组。"},
+  "app.instances.group.delete-group": {"message": "删除分组"},
+  "app.instances.group.edit-name": {"message": "编辑分组名称"},
+  "app.instances.group.empty": {"message": "拖放实例到此处添加。"},
+  "app.instances.group.expand": {"message": "展开分组"},
+  "app.instances.group.move-down": {"message": "下移分组"},
+  "app.instances.group.move-up": {"message": "上移分组"},
+  "app.instances.group.name-empty": {"message": "分组名称不能为空。"},
+  "app.instances.group.name-too-long": {"message": "分组名称不能超过 {maxLength} 个字符。"},
+  "app.instances.group.new-instance": {"message": "新建实例"},
+  "app.instances.group.pinned": {"message": "已置顶"},
+  "app.instances.group.rename-group": {"message": "重命名分组"},
+  "app.instances.sort-by": {"message": "排序方式"},
+  "app.instances.sort.direction.asc-alphabetical": {"message": "A–Z 正序"},
+  "app.instances.sort.direction.asc-date": {"message": "最早的在前"},
+  "app.instances.sort.direction.asc-recency": {"message": "最早游玩在前"},
+  "app.instances.sort.direction.asc-version": {"message": "旧版本在前"},
+  "app.instances.sort.direction.desc-alphabetical": {"message": "Z–A 倒序"},
+  "app.instances.sort.direction.desc-date": {"message": "最新的在前"},
+  "app.instances.sort.direction.desc-recency": {"message": "最近游玩在前"},
+  "app.instances.sort.direction.desc-version": {"message": "新版本在前"},
+  "app.library.context-menu.pin-instance": {"message": "置顶实例"},
+  "app.library.context-menu.remove-from-group": {"message": "移出分组"},
+  "app.library.context-menu.unpin-instance": {"message": "取消置顶"},
+  "app.library.group.new": {"message": "新建分组"},
+  "app.library.selection.new-group": {"message": "新建分组"},
+  "app.library.selection.remove-from-group": {"message": "移出分组"},
+  "app.log-share.settings.title": {"message": "日志分享与 AI 分析"},
+  "app.log-share.settings.description": {"message": "将崩溃诊断分享到 LogShare，获取结构化摘要与可选的 AI 分析。优先使用 LogShare，不可用时回退到 mclo.gs。"},
+  "app.log-share.settings.share-provider": {"message": "日志分享服务"},
+  "app.log-share.settings.share-provider-description": {"message": "分享诊断链接时上传到的目标服务。"},
+  "app.log-share.settings.ai-source": {"message": "AI 分析来源"},
+  "app.log-share.settings.ai-source-logshare": {"message": "LogShare AI"},
+  "app.log-share.settings.ai-source-custom": {"message": "自定义 AI 服务商"},
+  "app.log-share.settings.ai-source-description": {"message": "LogShare AI 在云端分析；自定义则使用下方配置的服务商。"},
+  "app.log-share.settings.auto-upload": {"message": "自动上传以获取结构化摘要"},
+  "app.log-share.settings.auto-upload-description": {"message": "仅在 LogShare 模式下生效。"},
+  "app.log-share.settings.multi-file": {"message": "多文件上传"},
+  "app.log-share.settings.multi-file-description": {"message": "同时上传 latest.log、崩溃报告、hs_err 以及启动器日志。"},
+  "app.log-share.settings.no-storage": {"message": "不落盘直接分析"},
+  "app.log-share.settings.no-storage-description": {"message": "直接提交内容进行分析并跳过存储上传。会关闭自动摘要。"},
+  "app.log-share.settings.show-progress": {"message": "显示 AI 分析进度"},
+  "app.log-share.settings.show-progress-description": {"message": "展示 LogAgent 运行期间的思考、工具及上限状态。"},
+  "app.log-share.shared-logs.title": {"message": "已分享日志"},
+  "app.log-share.shared-logs.description": {"message": "你分享过的所有诊断都记录在这里。删除条目会将其从记录中移除，并向分享服务请求删除。"},
+  "app.log-share.shared-logs.empty": {"message": "暂无已分享的日志。"},
+  "app.log-share.shared-logs.delete": {"message": "删除"},
+  "app.log-share.shared-logs.deleting": {"message": "删除中…"},
+  "app.log-share.shared-logs.deleted": {"message": "已删除共享日志。"},
+  "app.log-share.shared-logs.delete-failed": {"message": "删除已分享日志失败。"},
+  "app.log-share.shared-logs.truncated": {"message": "已截断"},
+  "app.minecraft-crash.share-fallback": {"message": "LogShare 不可用，已改用 mclo.gs 分享诊断信息。"},
+  "app.log-share.ai.action": {"message": "AI 深度分析"},
+  "app.log-share.summary.title": {"message": "LogShare 分析"},
+  "app.log-share.summary.loading": {"message": "正在加载结构化摘要…"},
+  "app.log-share.summary.empty": {"message": "LogShare 未返回这些日志的结构化摘要。"},
+  "app.log-share.summary.no-storage": {"message": "启用不落盘模式时无法获取结构化摘要。"},
+  "app.log-share.summary.failed": {"message": "无法加载 LogShare 摘要：{message}"},
+  "app.log-share.summary.problems": {"message": "问题"},
+  "app.log-share.summary.information": {"message": "信息"},
+  "app.minecraft-crash.logs.loading": {"message": "正在加载崩溃日志…"},
+  "app.minecraft-crash.logs.empty": {"message": "未找到本次启动产生的日志。"},
+  "app.minecraft-crash.logs.failed": {"message": "无法加载崩溃日志：{message}"},
+  "app.minecraft-crash.log-file.loading": {"message": "正在加载日志文件…"},
+  "app.minecraft-crash.log-file.failed": {"message": "无法加载此日志文件：{message}"},
+  "app.log-share.ai.tab": {"message": "LogAgent 深度分析"},
+  "app.log-share.ai.root-cause": {"message": "核心根因"},
+  "app.log-share.ai.confidence": {"message": "诊断置信度"},
+  "app.log-share.ai.steps": {"message": "推荐排障步骤"},
+  "app.log-share.ai.evidence": {"message": "支撑证据链"},
+  "app.log-share.ai.thinking": {"message": "思考中…"},
+  "app.log-share.ai.queued": {"message": "排队中，前方约 {position} 个任务"},
+  "app.log-share.ai.queued-front": {"message": "排队中，正在等待空闲槽位"},
+  "app.log-share.ai.tool": {"message": "正在使用工具：{name}"},
+  "app.log-share.ai.unknown-tool": {"message": "工具"},
+  "app.log-share.ai.tool-result": {"message": "已收到工具结果"},
+  "app.log-share.ai.limit": {"message": "已达到工具调用上限"},
+  "app.log-share.ai.working": {"message": "正在使用 LogAgent 分析…"},
+  "app.log-share.ai.failed": {"message": "LogAgent 分析失败：{message}"},
+  "app.shortcut-settings.change-shortcut": {"message": "更改「{action}」的快捷键"},
+  "app.shortcut-settings.enable": {"message": "启用快捷滚动"},
+  "app.shortcut-settings.end-action": {"message": "滚动到页面底部"},
+  "app.shortcut-settings.end-action-description": {"message": "将当前页面移动到底部。"},
+  "app.shortcut-settings.home-action": {"message": "滚动到页面顶部"},
+  "app.shortcut-settings.home-action-description": {"message": "将当前页面移动到顶部。"},
+  "app.shortcut-settings.nav-create": {"message": "新建实例"},
+  "app.shortcut-settings.nav-create-description": {"message": "前往新建实例。"},
+  "app.shortcut-settings.nav-description": {"message": "使用各自的快捷键跳转到对应菜单项。每个快捷键默认关闭，需逐个启用。"},
+  "app.shortcut-settings.nav-discover": {"message": "发现内容"},
+  "app.shortcut-settings.nav-discover-description": {"message": "前往浏览内容。"},
+  "app.shortcut-settings.nav-downloads": {"message": "下载"},
+  "app.shortcut-settings.nav-downloads-description": {"message": "前往下载。"},
+  "app.shortcut-settings.nav-home": {"message": "首页"},
+  "app.shortcut-settings.nav-home-description": {"message": "前往首页。"},
+  "app.shortcut-settings.nav-lab": {"message": "实验室"},
+  "app.shortcut-settings.nav-lab-description": {"message": "前往实验室。"},
+  "app.shortcut-settings.nav-library": {"message": "内容库"},
+  "app.shortcut-settings.nav-library-description": {"message": "前往内容库。"},
+  "app.shortcut-settings.nav-multiplayer": {"message": "多人游戏"},
+  "app.shortcut-settings.nav-multiplayer-description": {"message": "前往多人游戏。"},
+  "app.shortcut-settings.nav-settings": {"message": "设置"},
+  "app.shortcut-settings.nav-settings-description": {"message": "前往设置。"},
+  "app.shortcut-settings.nav-skins": {"message": "皮肤选择器"},
+  "app.shortcut-settings.nav-skins-description": {"message": "前往皮肤选择器。"},
+  "app.shortcut-settings.nav-title": {"message": "导航快捷键"},
+  "app.shortcut-settings.nav-worlds": {"message": "世界"},
+  "app.shortcut-settings.nav-worlds-description": {"message": "前往你的世界。"},
+  "app.shortcut-settings.page-down-action": {"message": "向下滚动一屏"},
+  "app.shortcut-settings.page-down-action-description": {"message": "将当前页面向下移动一屏。"},
+  "app.shortcut-settings.page-up-action": {"message": "向上滚动一屏"},
+  "app.shortcut-settings.page-up-action-description": {"message": "将当前页面向上移动一屏。"},
+  "app.shortcut-settings.scroll-description": {"message": "使用键盘在长页面中快速滚动。"},
+  "app.shortcut-settings.scroll-title": {"message": "快速滚动"},
+  "app.settings.tabs.shortcut-settings": {"message": "键盘快捷键"}
 }

apps/app-frontend/src/pages/Skins.vue

@@ -9,9 +9,13 @@ import {
 	SpinnerIcon,
 } from '@modrinth/assets'
 import {
+	type ArmorPreviewConfig,
+	ArmorPreviewControls,
 	ButtonStyled,
+	cloneArmorPreviewConfig,
 	commonMessages,
 	ConfirmModal,
+	createDefaultArmorPreviewConfig,
 	defineMessages,
 	injectNotificationManager,
 	NavTabs,
@@ -24,12 +28,14 @@ import { invoke } from '@tauri-apps/api/core'
 import type { DragDropEvent } from '@tauri-apps/api/webview'
 import { getCurrentWebview } from '@tauri-apps/api/webview'
 import { computedAsync } from '@vueuse/core'
-import type { Ref } from 'vue'
+import type { ComponentPublicInstance, Ref } from 'vue'
 import { computed, inject, onMounted, onUnmounted, ref, useTemplateRef, watch } from 'vue'
 import { onBeforeRouteLeave, useRouter } from 'vue-router'
 
 import type AccountsCard from '@/components/ui/AccountsCard.vue'
+import ArmorTrimTab from '@/components/ui/skin/ArmorTrimTab.vue'
 import EditSkinModal from '@/components/ui/skin/EditSkinModal.vue'
+import SkinListSkeleton from '@/components/ui/skin/SkinListSkeleton.vue'
 import VirtualSkinSectionList from '@/components/ui/skin/VirtualSkinSectionList.vue'
 import {
 	openSkinSiteLogin,
@@ -45,6 +51,7 @@ import { useNetworkStatus } from '@/composables/useNetworkStatus'
 import { check_reachable, get_default_user, users } from '@/helpers/auth'
 import type { RenderResult } from '@/helpers/rendering/batch-skin-renderer.ts'
 import { skinBlobUrlMap } from '@/helpers/rendering/batch-skin-renderer.ts'
+import { loadSkinArmorPreview, saveSkinArmorPreview } from '@/helpers/skin-armor-preview'
 import type { Cape, Skin, SkinTextureUrl } from '@/helpers/skins.ts'
 import {
 	determineModelType,
@@ -252,6 +259,8 @@ const editSkinModal = useTemplateRef('editSkinModal')
 const addSkinFileInput = useTemplateRef<HTMLInputElement>('addSkinFileInput')
 const skinSectionList = useTemplateRef<VirtualSkinSectionListExpose>('skinSectionList')
 const skinPreviewArea = useTemplateRef<HTMLElement>('skinPreviewArea')
+const armorTrimTab = useTemplateRef<ComponentPublicInstance>('armorTrimTab')
+const armorPreviewControls = useTemplateRef<ComponentPublicInstance>('armorPreviewControls')
 
 const { formatMessage } = useVIntl()
 const router = useRouter()
@@ -391,7 +400,8 @@ const isAddSkinButtonDragActive = ref(false)
 
 const deleteSkinModal = ref()
 const skinToDelete = ref<Skin | null>(null)
-const skinListTab = ref<'saved' | 'default'>('saved')
+const lastSkinListTab = ref<'saved' | 'default'>('saved')
+const skinListTab = ref<'saved' | 'default' | 'armor'>('saved')
 
 const skinListTabLinks = computed(() => [
 	{
@@ -403,6 +413,70 @@ const skinListTabLinks = computed(() => [
 		label: formatMessage(messages.defaultTab),
 	},
 ])
+const ARMOR_TRIM_PANEL_ID = 'skins-armor-trim-panel'
+const savedArmorPreview = ref<ArmorPreviewConfig>(loadSkinArmorPreview())
+const armorPreviewConfig = ref<ArmorPreviewConfig>(cloneArmorPreviewConfig(savedArmorPreview.value))
+
+function saveArmorPreview() {
+	savedArmorPreview.value = cloneArmorPreviewConfig(armorPreviewConfig.value)
+	saveSkinArmorPreview(savedArmorPreview.value)
+}
+
+function resetArmorPreviewToSaved() {
+	armorPreviewConfig.value = cloneArmorPreviewConfig(savedArmorPreview.value)
+}
+
+function restoreDefaultArmorPreview() {
+	armorPreviewConfig.value = createDefaultArmorPreviewConfig()
+}
+
+/** A third tab behind the two list tabs, opened from the preview's action row. */
+function openArmorTab() {
+	if (skinListTab.value !== 'armor') lastSkinListTab.value = skinListTab.value
+
+	skinListTab.value = 'armor'
+}
+
+/**
+ * Whether an element belongs to the armour surface: somewhere inside the open
+ * armour tab or the button that toggles it. Only those hold a focus ring that
+ * would be left behind when the tab closes.
+ */
+function isArmorPreviewElement(element: Element) {
+	const tabElement: unknown = armorTrimTab.value?.$el
+	const toggleElement: unknown = armorPreviewControls.value?.$el
+
+	return (
+		(tabElement instanceof Element && tabElement.contains(element)) ||
+		(toggleElement instanceof Element && toggleElement.contains(element))
+	)
+}
+
+function closeArmorTab() {
+	// Leaving the tab drops whatever was not saved on purpose.
+	resetArmorPreviewToSaved()
+	skinListTab.value = lastSkinListTab.value
+
+	// Escape and the toggle both leave the armour button holding focus, which
+	// keeps its focus ring drawn until something else is clicked. Only drop that
+	// ring when the focus sits on the armour surface, never on an unrelated
+	// control that happened to hold it when Escape was pressed.
+	const focused = document.activeElement
+	if (focused instanceof HTMLElement && isArmorPreviewElement(focused)) focused.blur()
+}
+
+/**
+ * The tab bar keeps the last list tab highlighted while the armour tab shows, so
+ * picking one of them leaves the armour tab. That transition has to drop the
+ * draft exactly like the toggle and Escape paths do, or it lingers on the model
+ * while the panel is gone.
+ */
+function selectSkinListTab(index: number) {
+	if (skinListTab.value === 'armor') resetArmorPreviewToSaved()
+
+	lastSkinListTab.value = index === 0 ? 'saved' : 'default'
+	skinListTab.value = lastSkinListTab.value
+}
 
 function confirmDeleteSkin(skin: Skin) {
 	if (isSkinManagementReadOnly.value) return
@@ -1211,6 +1285,9 @@ await loadSkins()
 				class="ml-5 mt-4 flex h-[calc(80vh-1rem)] items-center justify-center max-[700px]:h-[calc(50vh-1rem)]"
 			>
 				<SkinPreviewRenderer
+					v-model:armor-config="armorPreviewConfig"
+					armor-preview
+					:armor-controls="false"
 					:cape-src="capeTexture"
 					:texture-src="skinTexture || ''"
 					:variant="skinVariant"
@@ -1257,6 +1334,16 @@ await loadSkins()
 							<EditIcon />
 							{{ formatMessage(messages.editSkinButton) }}
 						</button>
+						<ArmorPreviewControls
+							v-if="!isSkinSiteProfile"
+							ref="armorPreviewControls"
+							v-model="armorPreviewConfig"
+							panel="external"
+							:panel-id="ARMOR_TRIM_PANEL_ID"
+							:open="skinListTab === 'armor'"
+							@open="openArmorTab"
+							@close="closeArmorTab"
+						/>
 					</template>
 				</SkinPreviewRenderer>
 			</div>
@@ -1265,14 +1352,10 @@ await loadSkins()
 		<div class="pt-2">
 			<div class="mb-4 flex flex-wrap items-center justify-between gap-3">
 				<NavTabs
-					:active-index="skinListTab === 'saved' ? 0 : 1"
+					:active-index="lastSkinListTab === 'saved' ? 0 : 1"
 					:links="skinListTabLinks"
 					mode="local"
-					@tab-click="
-						(index: number) => {
-							skinListTab = index === 0 ? 'saved' : 'default'
-						}
-					"
+					@tab-click="selectSkinListTab"
 				/>
 				<ButtonStyled v-if="!isSkinSiteProfile" color="brand">
 					<button @click="router.push('/lab/skin-editor')">
@@ -1281,27 +1364,45 @@ await loadSkins()
 					</button>
 				</ButtonStyled>
 			</div>
-			<VirtualSkinSectionList
-				ref="skinSectionList"
-				:active-tab="skinListTab"
-				:saved-skins="savedSkins"
-				:default-skin-sections="defaultSkinSections"
-				:get-baked-skin-textures="getBakedSkinTextures"
-				:is-skin-selected="isSkinSelected"
-				:is-skin-active="isSkinActive"
-				:is-add-skin-button-drag-active="isAddSkinButtonDragActive"
-				:read-only="isSkinManagementReadOnly"
-				:manage-saved-skins="!isSkinSiteProfile"
-				@select="changeSkin"
-				@edit="(skin, event) => !isSkinSiteProfile && editSkinModal?.show(event, skin)"
-				@delete="confirmDeleteSkin"
-				@reorder-saved-skins="reorderSavedSkins"
-				@add-skin="openAddSkinFileBrowser"
-				@add-skin-dragenter="onAddSkinDragOver"
-				@add-skin-dragover="onAddSkinDragOver"
-				@add-skin-dragleave="onAddSkinDragLeave"
-				@add-skin-drop="onAddSkinDrop"
-			/>
+			<Transition name="armor-tab" mode="out-in">
+				<div v-if="skinListTab !== 'armor'" key="list">
+					<SkinListSkeleton v-if="isSkinListBuffering" />
+					<VirtualSkinSectionList
+						v-show="!isSkinListBuffering"
+						ref="skinSectionList"
+						:active-tab="skinListTab"
+						:saved-skins="savedSkins"
+						:default-skin-sections="defaultSkinSections"
+						:get-baked-skin-textures="getBakedSkinTextures"
+						:is-skin-selected="isSkinSelected"
+						:is-skin-active="isSkinActive"
+						:is-add-skin-button-drag-active="isAddSkinButtonDragActive"
+						:read-only="isSkinManagementReadOnly"
+						:manage-saved-skins="!isSkinSiteProfile"
+						@select="changeSkin"
+						@edit="(skin, event) => !isSkinSiteProfile && editSkinModal?.show(event, skin)"
+						@delete="confirmDeleteSkin"
+						@reorder-saved-skins="reorderSavedSkins"
+						@add-skin="openAddSkinFileBrowser"
+						@add-skin-dragenter="onAddSkinDragOver"
+						@add-skin-dragover="onAddSkinDragOver"
+						@add-skin-dragleave="onAddSkinDragLeave"
+						@add-skin-drop="onAddSkinDrop"
+					/>
+				</div>
+				<ArmorTrimTab
+					v-else
+					ref="armorTrimTab"
+					key="armor"
+					v-model="armorPreviewConfig"
+					:panel-id="ARMOR_TRIM_PANEL_ID"
+					:saved="savedArmorPreview"
+					@save="saveArmorPreview"
+					@reset="resetArmorPreviewToSaved"
+					@defaults="restoreDefaultArmorPreview"
+					@close="closeArmorTab"
+				/>
+			</Transition>
 		</div>
 	</div>
 
@@ -1382,4 +1483,17 @@ await loadSkins()
 		grid-template-columns: 1fr;
 	}
 }
+// The armour tab crossfades with the skin list it replaces.
+.armor-tab-enter-active,
+.armor-tab-leave-active {
+	transition:
+		opacity 180ms ease,
+		transform 180ms ease;
+}
+
+.armor-tab-enter-from,
+.armor-tab-leave-to {
+	opacity: 0;
+	transform: translateY(0.5rem);
+}
 </style>

apps/app-frontend/src/store/theme.ts

@@ -6,6 +6,18 @@ import {
 	resolveFontFamily,
 } from '@/helpers/font-family.ts'
 
+/**
+ * Mirrors `KeyBinding` from `@modrinth/ui`. Declared here so this module stays
+ * loadable without the UI package.
+ */
+export interface ShortcutBinding {
+	device: 'keyboard' | 'mouse'
+	code: string
+	mod: boolean
+	shift: boolean
+	alt: boolean
+}
+
 let systemThemeMq: MediaQueryList | null = null
 
 export const DEFAULT_FEATURE_FLAGS = {
@@ -135,8 +147,30 @@ export type ThemeStore = {
 	minimalHomeInstanceId: string | null
 	closeBehavior: CloseBehavior
 
+	/** Whether the floating "back to top" button is shown on scrollable pages. */
+	showScrollTop: boolean
+	/** Whether quick scrolling shortcuts (Home/End/PageUp/PageDown) are active. */
+	quickScrollEnabled: boolean
+	/** Per-nav-item quick jump shortcuts (Ctrl/Cmd + number), off by default. */
+	shortcutNavHome: boolean
+	shortcutNavWorlds: boolean
+	shortcutNavDiscover: boolean
+	shortcutNavSkins: boolean
+	shortcutNavMultiplayer: boolean
+	shortcutNavLibrary: boolean
+	shortcutNavLab: boolean
+	shortcutNavDownloads: boolean
+	shortcutNavCreate: boolean
+	shortcutNavSettings: boolean
+
+	/**
+	 * The combination every shortcut answers to, keyed by action id. Kept here so
+	 * pages re-render when one is recorded; the value itself lives in local
+	 * storage, next to the enable flags.
+	 */
+	shortcutBindings: Record<string, ShortcutBinding>
+
 	devMode: boolean
-	featureFlags: FeatureFlags
 
 	uiFont: string | null
 	monoFont: string | null
@@ -162,6 +196,22 @@ export const DEFAULT_THEME_STORE: ThemeStore = {
 	minimalHomeInstanceId: null,
 	closeBehavior: 'ask',
 
+	showScrollTop: true,
+	quickScrollEnabled: false,
+
+	shortcutNavHome: false,
+	shortcutNavWorlds: false,
+	shortcutNavDiscover: false,
+	shortcutNavSkins: false,
+	shortcutNavMultiplayer: false,
+	shortcutNavLibrary: false,
+	shortcutNavLab: false,
+	shortcutNavDownloads: false,
+	shortcutNavCreate: false,
+	shortcutNavSettings: false,
+
+	shortcutBindings: {},
+
 	devMode: false,
 	featureFlags: DEFAULT_FEATURE_FLAGS,
 

apps/app/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "theseus_gui"
 # The actual version is set by the theseus-build workflow on tagging
-version = "1.0.0-beta15"
+version = "1.0.2-beta7"
 edition.workspace = true
 description = "Axolotl Launcher is a cross-platform Minecraft launcher"
 homepage = "https://www.ghs.red"

apps/app/build.rs

@@ -300,6 +300,17 @@ fn main() {
                         "logs_explain_crash_with_ai",
                         "logs_undo_added_mod",
                         "logs_export_crash_context",
+                        "logs_get_log_share_settings",
+                        "logs_update_log_share_settings",
+                        "logs_logshare_upload_crash",
+                        "logs_logshare_get_insights",
+                        "logs_logshare_analyse_crash_direct",
+                        "logs_logshare_ai_analyze_stored",
+                        "logs_logshare_ai_analyze_direct",
+                        "logs_logshare_delete",
+                        "logs_list_shared_logs",
+                        "logs_record_shared_log",
+                        "logs_delete_shared_log",
                     ])
                     .default_permission(
                         DefaultPermissionRule::AllowAllCommands,
@@ -534,6 +545,12 @@ fn main() {
                         "instance_delete_screenshot_group",
                         "instance_set_screenshot_group_memberships",
                         "instance_import_screenshot_groups",
+                        "instance_list_groups",
+                        "instance_create_group",
+                        "instance_rename_group",
+                        "instance_delete_group",
+                        "instance_set_group_order",
+                        "instance_set_group_memberships",
                         "instance_delete_screenshots",
                         "instance_export_screenshots",
                         "instance_move_screenshots",
@@ -694,6 +711,7 @@ fn main() {
                         "open_path",
                         "show_launcher_logs_folder",
                         "export_error_logs",
+                        "export_launcher_logs",
                         "show_app_db_backups_folder",
                         "progress_bars_list",
                         "get_opening_command",

apps/app/src/api/instance/mod.rs

@@ -131,6 +131,12 @@ pub fn init<R: tauri::Runtime>() -> tauri::plugin::TauriPlugin<R> {
             instance_delete_screenshot_group,
             instance_set_screenshot_group_memberships,
             instance_import_screenshot_groups,
+            instance_list_groups,
+            instance_create_group,
+            instance_rename_group,
+            instance_delete_group,
+            instance_set_group_order,
+            instance_set_group_memberships,
             instance_delete_screenshots,
             instance_export_screenshots,
             instance_move_screenshots,
@@ -333,6 +339,12 @@ pub struct EditInstance {
     )]
     pub launch_preparation_timeout: Option<Option<u64>>,
     pub hooks: Option<Hooks>,
+    #[serde(
+        default,
+        skip_serializing_if = "Option::is_none",
+        with = "serde_with::rust::double_option"
+    )]
+    pub window_title: Option<Option<String>>,
 
     #[serde(
         default,
@@ -531,7 +543,8 @@ fn edit_to_core(edit_instance: EditInstance) -> Result<CoreEditInstance> {
                 || edit_instance.maximize_window.is_some()
                 || edit_instance.game_resolution.is_some()
                 || edit_instance.launch_preparation_timeout.is_some()
-                || edit_instance.hooks.is_some();
+                || edit_instance.hooks.is_some()
+                || edit_instance.window_title.is_some();
             if has_launch_change {
                 Some(InstanceLaunchOverridesPatch {
                     player: None,
@@ -546,6 +559,7 @@ fn edit_to_core(edit_instance: EditInstance) -> Result<CoreEditInstance> {
                     launch_preparation_timeout: edit_instance
                         .launch_preparation_timeout,
                     hooks: edit_instance.hooks,
+                    window_title: edit_instance.window_title,
                 })
             } else {
                 None
@@ -1709,6 +1723,44 @@ pub async fn instance_import_screenshot_groups(
     Ok(theseus::instance::import_screenshot_groups(groups).await?)
 }
 
+#[tauri::command]
+pub async fn instance_list_groups()
+-> Result<Vec<theseus::instance::InstanceGroup>> {
+    Ok(theseus::instance::list_groups().await?)
+}
+
+#[tauri::command]
+pub async fn instance_create_group(
+    name: String,
+) -> Result<theseus::instance::InstanceGroup> {
+    Ok(theseus::instance::create_group(name).await?)
+}
+
+#[tauri::command]
+pub async fn instance_rename_group(
+    id: String,
+    new_name: String,
+) -> Result<theseus::instance::InstanceGroup> {
+    Ok(theseus::instance::rename_group(id, new_name).await?)
+}
+
+#[tauri::command]
+pub async fn instance_delete_group(id: String) -> Result<()> {
+    Ok(theseus::instance::delete_group(id).await?)
+}
+
+#[tauri::command]
+pub async fn instance_set_group_order(group_ids: Vec<String>) -> Result<()> {
+    Ok(theseus::instance::set_group_order(group_ids).await?)
+}
+
+#[tauri::command]
+pub async fn instance_set_group_memberships(
+    updates: Vec<theseus::instance::InstanceGroupMembershipUpdate>,
+) -> Result<()> {
+    Ok(theseus::instance::set_group_memberships(updates).await?)
+}
+
 #[tauri::command]
 pub async fn instance_delete_screenshots(
     keys: Vec<theseus::instance::ScreenshotKey>,

apps/app/src/api/logs.rs

@@ -4,7 +4,8 @@ use std::path::PathBuf;
 use theseus::logs::LogType;
 use theseus::logs::{
     self, CensoredString, CrashAnalysis, CrashAnalysisAiExplanation,
-    CrashAnalysisAiSettings, LatestLogCursor, LiveLogSnapshot, Logs,
+    CrashAnalysisAiSettings, LatestLogCursor, LiveLogSnapshot,
+    LogShareSettings, LogShareUploadResponse, Logs, SharedLog,
 };
 
 /*
@@ -34,6 +35,17 @@ pub fn init<R: tauri::Runtime>() -> tauri::plugin::TauriPlugin<R> {
             logs_explain_crash_with_ai,
             logs_undo_added_mod,
             logs_export_crash_context,
+            logs_get_log_share_settings,
+            logs_update_log_share_settings,
+            logs_logshare_upload_crash,
+            logs_logshare_get_insights,
+            logs_logshare_analyse_crash_direct,
+            logs_logshare_ai_analyze_stored,
+            logs_logshare_ai_analyze_direct,
+            logs_logshare_delete,
+            logs_list_shared_logs,
+            logs_record_shared_log,
+            logs_delete_shared_log,
         ])
         .build()
 }
@@ -172,3 +184,81 @@ pub async fn logs_export_crash_context(
     writer.close().await.map_err(crate::api::utils::zip_error)?;
     Ok(())
 }
+
+/// Get the log share settings.
+#[tauri::command]
+pub async fn logs_get_log_share_settings() -> Result<LogShareSettings> {
+    Ok(logs::get_log_share_settings().await?)
+}
+
+/// Update the log share settings.
+#[tauri::command]
+pub async fn logs_update_log_share_settings(
+    settings: LogShareSettings,
+) -> Result<()> {
+    Ok(logs::update_log_share_settings(settings).await?)
+}
+
+/// Upload the latest run's crash logs to LogShare.
+#[tauri::command]
+pub async fn logs_logshare_upload_crash(
+    instance_id: &str,
+) -> Result<LogShareUploadResponse> {
+    Ok(logs::upload_crash(instance_id).await?)
+}
+
+/// Fetch structured insights for a shared log.
+#[tauri::command]
+pub async fn logs_logshare_get_insights(id: &str) -> Result<serde_json::Value> {
+    Ok(logs::get_insights(id).await?)
+}
+
+/// Analyse the latest run's crash logs directly.
+#[tauri::command]
+pub async fn logs_logshare_analyse_crash_direct(
+    instance_id: &str,
+) -> Result<serde_json::Value> {
+    Ok(logs::analyse_crash_direct(instance_id).await?)
+}
+
+/// Stream an AI analysis for a stored shared log.
+#[tauri::command]
+pub async fn logs_logshare_ai_analyze_stored(
+    instance_id: &str,
+    id: &str,
+) -> Result<String> {
+    Ok(logs::ai_analyze_stored(instance_id, id).await?)
+}
+
+/// Stream an AI analysis for the latest run's crash logs.
+#[tauri::command]
+pub async fn logs_logshare_ai_analyze_direct(
+    instance_id: &str,
+) -> Result<String> {
+    Ok(logs::ai_analyze_direct(instance_id).await?)
+}
+
+/// Delete a shared log remotely and locally.
+#[tauri::command]
+pub async fn logs_logshare_delete(id: &str, token: &str) -> Result<()> {
+    logs::delete_log(id, token).await?;
+    Ok(())
+}
+
+/// List locally recorded shared logs.
+#[tauri::command]
+pub async fn logs_list_shared_logs() -> Result<Vec<SharedLog>> {
+    Ok(logs::list_shared_logs().await?)
+}
+
+/// Record a shared log locally.
+#[tauri::command]
+pub async fn logs_record_shared_log(log: SharedLog) -> Result<()> {
+    Ok(logs::record_shared_log(log).await?)
+}
+
+/// Remove a shared log record locally and remotely.
+#[tauri::command]
+pub async fn logs_delete_shared_log(id: String, token: String) -> Result<()> {
+    Ok(logs::delete_shared_log(id, token).await?)
+}

apps/app/src/api/utils.rs

@@ -25,6 +25,7 @@ pub fn init<R: Runtime>() -> tauri::plugin::TauriPlugin<R> {
             open_path,
             show_launcher_logs_folder,
             export_error_logs,
+            export_launcher_logs,
             show_app_db_backups_folder,
             progress_bars_list,
             get_opening_command,
@@ -164,6 +165,312 @@ pub async fn export_error_logs(
     Ok(())
 }
 
+/// Time window included in a launcher log export.
+#[derive(Debug, Clone, Copy, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub enum LogExportRange {
+    Last30Minutes,
+    Last2Hours,
+    All,
+}
+
+impl LogExportRange {
+    fn max_age(self) -> Option<std::time::Duration> {
+        match self {
+            Self::Last30Minutes => {
+                Some(std::time::Duration::from_secs(30 * 60))
+            }
+            Self::Last2Hours => {
+                Some(std::time::Duration::from_secs(2 * 60 * 60))
+            }
+            Self::All => None,
+        }
+    }
+
+    fn label(self) -> &'static str {
+        match self {
+            Self::Last30Minutes => "last 30 minutes",
+            Self::Last2Hours => "last 2 hours",
+            Self::All => "all sessions",
+        }
+    }
+}
+
+/// Lowest level included in a launcher log export.
+#[derive(Debug, Clone, Copy, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub enum LogExportLevel {
+    All,
+    Debug,
+    Info,
+}
+
+impl LogExportLevel {
+    fn minimum(self) -> Option<&'static str> {
+        match self {
+            Self::All => None,
+            Self::Debug => Some("debug"),
+            Self::Info => Some("info"),
+        }
+    }
+
+    fn label(self) -> &'static str {
+        match self {
+            Self::All => "all levels",
+            Self::Debug => "debug and above",
+            Self::Info => "info and above",
+        }
+    }
+}
+
+/// Instance log tail included in an export, in bytes.
+const LOG_EXPORT_INSTANCE_LOG_TAIL_BYTES: u64 = 512 * 1024;
+
+/// Export launcher logs (filtered by time range and level) plus optional
+/// system information, the most recent instance log, and a crash analysis
+/// summary into a ZIP archive.
+#[tauri::command]
+pub async fn export_launcher_logs(
+    output_path: PathBuf,
+    range: LogExportRange,
+    level: LogExportLevel,
+    include_system_info: bool,
+    include_instance_logs: bool,
+    include_crash_analysis: bool,
+) -> Result<()> {
+    // Censoring needs the app state (credentials, IPs). Without it an export
+    // would silently ship secrets, so fail rather than degrade.
+    let state = theseus::State::get().await?;
+    let archive = tokio::fs::File::create(&output_path).await?;
+    let mut writer = ZipFileWriter::with_tokio(archive);
+
+    let (exported_logs, skipped_logs) =
+        write_exported_logs(&mut writer, range, level, &state).await?;
+
+    let mut manifest = format!(
+        "Starlight Launcher log export\n\
+         Exported at: {}\n\
+         App version: {}\n\
+         Time range: {}\n\
+         Level filter: {}\n\
+         System information: {}\n\
+         Recent instance log: {}\n\
+         Crash analysis: {}\n\
+         Log files: {exported_logs}\n\n\
+         Access tokens, Minecraft tokens, and IP addresses are replaced with placeholders.\n",
+        chrono::Local::now().to_rfc3339(),
+        env!("CARGO_PKG_VERSION"),
+        range.label(),
+        level.label(),
+        if include_system_info {
+            "included"
+        } else {
+            "omitted"
+        },
+        if include_instance_logs {
+            "included"
+        } else {
+            "omitted"
+        },
+        if include_crash_analysis {
+            "included"
+        } else {
+            "omitted"
+        },
+    );
+    if !skipped_logs.is_empty() {
+        manifest.push_str("\nSkipped unreadable log files:\n");
+        for name in &skipped_logs {
+            manifest.push_str(&format!("- {name}\n"));
+        }
+    }
+    write_zip_entry(&mut writer, "manifest.txt", manifest.as_bytes()).await?;
+
+    if include_system_info {
+        let environment = build_environment_report();
+        let environment = censor_export_text(environment, &state).await?;
+        write_zip_entry(
+            &mut writer,
+            "system-information.txt",
+            environment.as_bytes(),
+        )
+        .await?;
+    }
+
+    let recent_instance = if include_instance_logs || include_crash_analysis {
+        newest_instance_log(&state).await
+    } else {
+        None
+    };
+
+    if include_instance_logs
+        && let Some((instance_id, path)) = recent_instance.as_ref()
+    {
+        let tail = read_file_tail(path, LOG_EXPORT_INSTANCE_LOG_TAIL_BYTES)?;
+        let tail = censor_export_text(tail, &state).await?;
+        write_zip_entry(
+            &mut writer,
+            &format!("minecraft/{instance_id}/latest.log"),
+            tail.as_bytes(),
+        )
+        .await?;
+    }
+
+    if include_crash_analysis
+        && let Some((instance_id, _)) = recent_instance.as_ref()
+        && let Ok(analysis) = theseus::logs::analyze_crash(instance_id).await
+        && (analysis.crashed || !analysis.findings.is_empty())
+        && let Ok(report) = serde_json::to_vec_pretty(&analysis)
+    {
+        // The analysis carries raw log text and Windows event messages, so it
+        // goes through the same censoring as the exported logs.
+        let report = censor_export_text(
+            String::from_utf8_lossy(&report).into_owned(),
+            &state,
+        )
+        .await?;
+        write_zip_entry(
+            &mut writer,
+            &format!("minecraft/{instance_id}/crash-analysis.json"),
+            report.as_bytes(),
+        )
+        .await?;
+    }
+
+    writer.close().await.map_err(zip_error)?;
+    Ok(())
+}
+
+/// Writes the matching launcher logs and reports how many were written plus
+/// the names of any files that could not be read.
+async fn write_exported_logs(
+    writer: &mut ZipFileWriter<tokio::fs::File>,
+    range: LogExportRange,
+    level: LogExportLevel,
+    state: &theseus::State,
+) -> Result<(usize, Vec<String>)> {
+    let Some(directories) = DirectoryInfo::global_handle_if_ready() else {
+        return Ok((0, Vec::new()));
+    };
+    let Some(logs_dir) = directories.launcher_logs_dir() else {
+        return Ok((0, Vec::new()));
+    };
+    if !tokio::fs::try_exists(&logs_dir).await? {
+        return Ok((0, Vec::new()));
+    }
+
+    let mut entries = tokio::fs::read_dir(&logs_dir).await?;
+    let mut paths = Vec::new();
+    while let Some(entry) = entries.next_entry().await? {
+        let path = entry.path();
+        let is_session_log =
+            path.file_name().and_then(|name| name.to_str()).is_some_and(
+                |name| name.starts_with("session_") && name.ends_with(".log"),
+            );
+        if is_session_log && entry.file_type().await?.is_file() {
+            paths.push(path);
+        }
+    }
+    paths.sort();
+
+    let mut exported = 0;
+    let mut skipped = Vec::new();
+    for path in paths {
+        let file_name = path
+            .file_name()
+            .map(|name| name.to_string_lossy().into_owned())
+            .unwrap_or_else(|| "session.log".to_string());
+
+        // A single unreadable file must not lose the whole report.
+        let Ok(contents) = tokio::fs::read(&path).await else {
+            skipped.push(file_name);
+            continue;
+        };
+        let filtered = theseus::filter_log_contents(
+            &contents,
+            range.max_age(),
+            level.minimum(),
+        );
+        let text = String::from_utf8_lossy(&filtered).into_owned();
+        let censored = censor_export_text(text, state).await?;
+        write_zip_entry(
+            writer,
+            &format!("launcher_logs/{file_name}"),
+            censored.as_bytes(),
+        )
+        .await?;
+        exported += 1;
+    }
+
+    Ok((exported, skipped))
+}
+
+/// Replaces credentials and IP addresses with placeholders. Censoring failures
+/// propagate so an export never ships unredacted content.
+async fn censor_export_text(
+    text: String,
+    state: &theseus::State,
+) -> Result<String> {
+    Ok(theseus::install::censor_shared_text(text, state).await?)
+}
+
+fn build_environment_report() -> String {
+    format!(
+        "Starlight Launcher environment\n\
+         App version: {}\n\
+         Operating system: {}\n\
+         Architecture: {}\n",
+        env!("CARGO_PKG_VERSION"),
+        std::env::consts::OS,
+        std::env::consts::ARCH,
+    )
+}
+
+/// The instance whose log was written most recently, if any.
+async fn newest_instance_log(
+    state: &theseus::State,
+) -> Option<(String, PathBuf)> {
+    let instances_dir = state.directories.instances_dir();
+    let mut entries = tokio::fs::read_dir(&instances_dir).await.ok()?;
+    let mut newest: Option<(std::time::SystemTime, String, PathBuf)> = None;
+
+    while let Some(entry) = entries.next_entry().await.ok()? {
+        if !entry.file_type().await.ok()?.is_dir() {
+            continue;
+        }
+        let log_path = entry.path().join("logs").join("latest.log");
+        let Ok(metadata) = tokio::fs::metadata(&log_path).await else {
+            continue;
+        };
+        let Ok(modified) = metadata.modified() else {
+            continue;
+        };
+        let is_newer = newest
+            .as_ref()
+            .is_none_or(|(newest_modified, ..)| modified > *newest_modified);
+        if is_newer {
+            let id = entry.file_name().to_string_lossy().into_owned();
+            newest = Some((modified, id, log_path));
+        }
+    }
+
+    newest.map(|(_, id, path)| (id, path))
+}
+
+fn read_file_tail(path: &Path, max_bytes: u64) -> Result<String> {
+    use std::io::{Read, Seek, SeekFrom};
+
+    let mut file = std::fs::File::open(path)?;
+    let length = file.metadata()?.len();
+    if length > max_bytes {
+        file.seek(SeekFrom::Start(length - max_bytes))?;
+    }
+
+    let mut contents = Vec::new();
+    file.read_to_end(&mut contents)?;
+    Ok(String::from_utf8_lossy(&contents).into_owned())
+}
+
 async fn write_zip_file(
     writer: &mut ZipFileWriter<tokio::fs::File>,
     filename: &str,

apps/app/src/lightweight_mode.rs

@@ -253,6 +253,14 @@ impl LightweightMode {
                     if payload.maximize_window {
                         maximize_minecraft_window(payload.pid).await;
                     }
+                    if let Some(title) = payload
+                        .window_title
+                        .as_ref()
+                        .map(|value| value.trim())
+                        .filter(|value| !value.is_empty())
+                    {
+                        rename_minecraft_window(payload.pid, title).await;
+                    }
                     let settings = match theseus::settings::get().await {
                         Ok(settings) => settings,
                         Err(error) => {
@@ -332,6 +340,8 @@ struct ProcessEventPayload {
     pid: u32,
     #[serde(default)]
     maximize_window: bool,
+    #[serde(default)]
+    window_title: Option<String>,
     event: String,
     crashed: Option<bool>,
     #[serde(default)]
@@ -339,7 +349,7 @@ struct ProcessEventPayload {
 }
 
 #[cfg(target_os = "windows")]
-use std::sync::atomic::{AtomicBool, AtomicU32, Ordering};
+use std::sync::atomic::{AtomicBool, AtomicIsize, AtomicU32, Ordering};
 
 #[cfg(target_os = "windows")]
 static MAXIMIZE_PROCESS_ID: AtomicU32 = AtomicU32::new(0);
@@ -400,6 +410,74 @@ async fn maximize_minecraft_window(pid: u32) {
 
 #[cfg(not(target_os = "windows"))]
 async fn maximize_minecraft_window(_pid: u32) {}
+#[cfg(target_os = "windows")]
+static RENAME_WINDOW_HANDLE: AtomicIsize = AtomicIsize::new(0);
+
+#[cfg(target_os = "windows")]
+unsafe extern "system" fn rename_if_owned_by_process(
+    hwnd: windows::Win32::Foundation::HWND,
+    _: windows::Win32::Foundation::LPARAM,
+) -> windows::core::BOOL {
+    use windows::Win32::UI::WindowsAndMessaging::{
+        GetWindowThreadProcessId, IsWindowVisible,
+    };
+    use windows::core::BOOL;
+
+    let mut window_pid = 0;
+    unsafe { GetWindowThreadProcessId(hwnd, Some(&mut window_pid)) };
+    if window_pid == MAXIMIZE_PROCESS_ID.load(Ordering::Relaxed)
+        && unsafe { IsWindowVisible(hwnd).as_bool() }
+    {
+        RENAME_WINDOW_HANDLE.store(hwnd.0 as isize, Ordering::Relaxed);
+        return BOOL(0);
+    }
+    BOOL(1)
+}
+
+#[cfg(target_os = "windows")]
+async fn rename_minecraft_window(pid: u32, title: &str) {
+    if pid == 0 || title.is_empty() {
+        return;
+    }
+
+    // PCL keeps re-applying the title: FML/Quilt and some mods reset it
+    // while the game boots, so a one-shot rename is not enough.
+    let deadline =
+        tokio::time::Instant::now() + std::time::Duration::from_secs(45);
+    let mut applied = false;
+    loop {
+        let found = {
+            let _guard = MAXIMIZE_WINDOW_ENUMERATION.lock();
+            MAXIMIZE_PROCESS_ID.store(pid, Ordering::Relaxed);
+            RENAME_WINDOW_HANDLE.store(0, Ordering::Relaxed);
+            unsafe {
+                use windows::Win32::Foundation::LPARAM;
+                use windows::Win32::UI::WindowsAndMessaging::EnumWindows;
+                let _ =
+                    EnumWindows(Some(rename_if_owned_by_process), LPARAM(0));
+            }
+            RENAME_WINDOW_HANDLE.load(Ordering::Relaxed)
+        };
+        if found != 0 {
+            let hwnd = windows::Win32::Foundation::HWND(found as *mut _);
+            let wide: Vec<u16> = title.encode_utf16().chain(Some(0)).collect();
+            unsafe {
+                use windows::Win32::UI::WindowsAndMessaging::SetWindowTextW;
+                let _ =
+                    SetWindowTextW(hwnd, windows::core::PCWSTR(wide.as_ptr()));
+            }
+            applied = true;
+        }
+        if tokio::time::Instant::now() >= deadline {
+            return;
+        }
+        let _ = applied;
+        tokio::time::sleep(std::time::Duration::from_millis(400)).await;
+    }
+}
+
+#[cfg(not(target_os = "windows"))]
+async fn rename_minecraft_window(_pid: u32, _title: &str) {}
 
 #[tauri::command]
 pub fn lightweight_mode_frontend_ready(

apps/app/src/main.rs

@@ -324,12 +324,9 @@ async fn initialize_state(app: tauri::AppHandle) -> api::Result<()> {
 /// external game-directory root for the one-click StarLight install flow.
 #[tauri::command]
 fn get_launcher_root_dir() -> api::Result<String> {
-    let exe = std::env::current_exe().map_err(|error| {
-        theseus::Error::from(theseus::ErrorKind::FSError(error.to_string()))
-    })?;
-    let dir = exe.parent().ok_or_else(|| {
+    let dir = theseus::default_game_dir_root().ok_or_else(|| {
         theseus::Error::from(theseus::ErrorKind::FSError(
-            "Launcher executable has no parent directory".to_string(),
+            "Could not determine a default game directory root".to_string(),
         ))
     })?;
     Ok(dir.to_string_lossy().into_owned())

packages/app-lib/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "theseus"
 # The actual version is set by the theseus-build workflow on tagging
-version = "1.0.0-beta15"
+version = "1.0.2-beta7"
 edition.workspace = true
 
 [dependencies]

packages/app-lib/migrations/20261004000000_custom-window-title.sql

@@ -0,0 +1,2 @@
+ALTER TABLE settings ADD COLUMN custom_window_title_enabled INTEGER NOT NULL DEFAULT FALSE;
+ALTER TABLE settings ADD COLUMN default_window_title TEXT NOT NULL DEFAULT 'Minecraft';

packages/app-lib/migrations/20261005000000_log-share.sql

@@ -0,0 +1,26 @@
+CREATE TABLE log_share_settings (
+	id INTEGER NOT NULL CHECK (id = 0),
+	share_provider TEXT NOT NULL DEFAULT 'logshare',
+	ai_source TEXT NOT NULL DEFAULT 'logshare',
+	auto_upload INTEGER NOT NULL DEFAULT TRUE,
+	multi_file INTEGER NOT NULL DEFAULT TRUE,
+	no_storage INTEGER NOT NULL DEFAULT FALSE,
+	show_progress INTEGER NOT NULL DEFAULT TRUE,
+	PRIMARY KEY (id)
+);
+
+INSERT INTO log_share_settings (id) VALUES (0);
+
+CREATE TABLE shared_logs (
+	id TEXT NOT NULL PRIMARY KEY,
+	url TEXT NOT NULL,
+	raw TEXT NOT NULL,
+	token TEXT NOT NULL,
+	provider TEXT NOT NULL DEFAULT 'logshare',
+	instance_id TEXT NULL,
+	instance_name TEXT NULL,
+	truncated INTEGER NOT NULL DEFAULT FALSE,
+	created_at INTEGER NOT NULL
+);
+
+CREATE INDEX shared_logs_created_at_idx ON shared_logs (created_at DESC);

packages/app-lib/src/api/ai.rs

@@ -19,7 +19,7 @@ use uuid::Uuid;
 
 use crate::{ErrorKind, State};
 
-const CATALOG_SOURCE: &str = "LobeHub 906b10e03029648655e0257bda4f785a9e0973f0";
+const CATALOG_SOURCE: &str = "LobeHub 6c7a6fb033e443bc27bf34cbd5509ab3db7f22f3";
 const KEYRING_PREFIX: &str = "ai-provider";
 const OAUTH_CREDENTIAL: &str = "oauth";
 const API_KEY_CREDENTIAL: &str = "api-key";

packages/app-lib/src/api/instance/groups.rs

@@ -0,0 +1,261 @@
+use crate::event::emit::emit_instance_groups_changed;
+use crate::state::instance_groups;
+use serde::{Deserialize, Serialize};
+use std::collections::HashSet;
+use uuid::Uuid;
+
+const MAX_GROUP_NAME_LENGTH: usize = 256;
+pub const FAVORITES_GROUP_ID: &str = instance_groups::FAVORITES_GROUP_ID;
+
+#[derive(Debug, Clone, Deserialize, Serialize)]
+pub struct InstanceGroup {
+    pub id: String,
+    pub name: String,
+}
+
+#[derive(Debug, Clone, Deserialize, Serialize)]
+pub struct InstanceGroupMembershipUpdate {
+    pub instance_id: String,
+    pub group_ids: Vec<String>,
+}
+
+fn validate_group_name(name: &str) -> crate::Result<&str> {
+    let name = name.trim();
+
+    if name.is_empty() {
+        return Err(crate::ErrorKind::InputError(
+            "Group name cannot be empty".to_string(),
+        )
+        .into());
+    }
+
+    if name.chars().count() > MAX_GROUP_NAME_LENGTH {
+        return Err(crate::ErrorKind::InputError(format!(
+            "Group name cannot exceed {MAX_GROUP_NAME_LENGTH} characters"
+        ))
+        .into());
+    }
+
+    if name.eq_ignore_ascii_case("none") {
+        return Err(crate::ErrorKind::InputError(
+            "Group name cannot be None".to_string(),
+        )
+        .into());
+    }
+
+    Ok(name)
+}
+
+fn normalize_membership_updates(
+    mut updates: Vec<InstanceGroupMembershipUpdate>,
+) -> crate::Result<Vec<InstanceGroupMembershipUpdate>> {
+    let mut instance_ids = HashSet::new();
+    for update in &mut updates {
+        if !instance_ids.insert(update.instance_id.clone()) {
+            return Err(crate::ErrorKind::InputError(format!(
+                "Duplicate instance {} in group membership update",
+                update.instance_id
+            ))
+            .into());
+        }
+
+        let mut group_ids = HashSet::new();
+        update
+            .group_ids
+            .retain(|group_id| group_ids.insert(group_id.clone()));
+    }
+
+    Ok(updates)
+}
+
+pub async fn list_groups() -> crate::Result<Vec<InstanceGroup>> {
+    Ok(instance_groups::list()
+        .into_iter()
+        .map(|group| InstanceGroup {
+            id: group.id,
+            name: group.name,
+        })
+        .collect())
+}
+
+pub async fn create_group(name: String) -> crate::Result<InstanceGroup> {
+    let name = validate_group_name(&name)?;
+    let id = Uuid::new_v4().to_string();
+    instance_groups::create(&id, name);
+
+    Ok(InstanceGroup {
+        id,
+        name: name.to_string(),
+    })
+}
+
+pub async fn set_group_order(group_ids: Vec<String>) -> crate::Result<()> {
+    instance_groups::set_order(&group_ids);
+    Ok(())
+}
+
+pub async fn set_group_memberships(
+    updates: Vec<InstanceGroupMembershipUpdate>,
+) -> crate::Result<()> {
+    if updates.is_empty() {
+        return Ok(());
+    }
+
+    let updates = normalize_membership_updates(updates)?;
+
+    // Note: the instances themselves are deliberately not validated here.
+    // JSON-backed instances (`local:` ids) have no row in the `instances` table,
+    // and requiring one is what used to make grouping them fail outright.
+    let unique_group_ids = updates
+        .iter()
+        .flat_map(|update| update.group_ids.iter())
+        .collect::<HashSet<_>>();
+    for group_id in unique_group_ids {
+        if !instance_groups::group_exists(group_id) {
+            return Err(crate::ErrorKind::InputError(format!(
+                "Unknown instance group {group_id}"
+            ))
+            .into());
+        }
+    }
+
+    instance_groups::set_memberships(
+        &updates
+            .iter()
+            .map(|update| {
+                (update.instance_id.clone(), update.group_ids.clone())
+            })
+            .collect::<Vec<_>>(),
+    );
+
+    let instance_ids = updates
+        .into_iter()
+        .map(|update| update.instance_id)
+        .collect::<Vec<_>>();
+    emit_instance_groups_changed(&instance_ids).await?;
+
+    Ok(())
+}
+
+pub async fn rename_group(
+    id: String,
+    new_name: String,
+) -> crate::Result<InstanceGroup> {
+    if id == FAVORITES_GROUP_ID {
+        return Err(crate::ErrorKind::InputError(
+            "Favorites cannot be renamed".to_string(),
+        )
+        .into());
+    }
+
+    let new_name = validate_group_name(&new_name)?;
+
+    let Some(instance_ids) = instance_groups::rename(&id, new_name) else {
+        return Err(crate::ErrorKind::InputError(format!(
+            "Unknown instance group {id}"
+        ))
+        .into());
+    };
+
+    emit_instance_groups_changed(&instance_ids).await?;
+
+    Ok(InstanceGroup {
+        id,
+        name: new_name.to_string(),
+    })
+}
+
+pub async fn delete_group(id: String) -> crate::Result<()> {
+    if id == FAVORITES_GROUP_ID {
+        return Err(crate::ErrorKind::InputError(
+            "Favorites cannot be deleted".to_string(),
+        )
+        .into());
+    }
+
+    let Some(instance_ids) = instance_groups::delete(&id) else {
+        return Err(crate::ErrorKind::InputError(format!(
+            "Unknown instance group {id}"
+        ))
+        .into());
+    };
+
+    emit_instance_groups_changed(&instance_ids).await?;
+
+    Ok(())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::{
+        FAVORITES_GROUP_ID, InstanceGroupMembershipUpdate,
+        MAX_GROUP_NAME_LENGTH, normalize_membership_updates,
+        validate_group_name,
+    };
+
+    #[test]
+    fn group_name_validation_trims_valid_names() {
+        assert_eq!(validate_group_name("  My group  ").unwrap(), "My group");
+    }
+
+    #[test]
+    fn group_name_validation_rejects_empty_names() {
+        assert!(validate_group_name("   ").is_err());
+    }
+
+    #[test]
+    fn group_name_validation_rejects_reserved_name() {
+        assert!(validate_group_name("NoNe").is_err());
+    }
+
+    #[test]
+    fn group_name_validation_allows_favorites() {
+        assert_eq!(validate_group_name("Favorites").unwrap(), "Favorites");
+    }
+
+    #[test]
+    fn group_name_validation_rejects_long_names() {
+        assert!(
+            validate_group_name(&"a".repeat(MAX_GROUP_NAME_LENGTH + 1))
+                .is_err()
+        );
+    }
+
+    #[test]
+    fn favorites_group_id_is_stable() {
+        assert_eq!(FAVORITES_GROUP_ID, "group:favorites");
+    }
+
+    #[test]
+    fn membership_updates_reject_duplicate_instances() {
+        let updates = vec![
+            InstanceGroupMembershipUpdate {
+                instance_id: "instance".to_string(),
+                group_ids: vec!["first".to_string()],
+            },
+            InstanceGroupMembershipUpdate {
+                instance_id: "instance".to_string(),
+                group_ids: vec!["second".to_string()],
+            },
+        ];
+
+        assert!(normalize_membership_updates(updates).is_err());
+    }
+
+    #[test]
+    fn membership_updates_deduplicate_groups() {
+        let updates =
+            normalize_membership_updates(vec![InstanceGroupMembershipUpdate {
+                instance_id: "instance".to_string(),
+                group_ids: vec![
+                    "a".to_string(),
+                    "b".to_string(),
+                    "a".to_string(),
+                    "b".to_string(),
+                ],
+            }])
+            .unwrap();
+
+        assert_eq!(updates[0].group_ids, &["a", "b"]);
+    }
+}

packages/app-lib/src/api/instance/mod.rs

@@ -5,6 +5,7 @@ mod content;
 mod core_components;
 mod export_mrpack;
 mod get;
+mod groups;
 mod home;
 mod install;
 mod lifecycle;
@@ -72,6 +73,11 @@ pub use self::export_mrpack::{
     create_mrpack_json, export_mrpack, get_pack_export_candidates,
 };
 pub use self::get::{get, get_many, list};
+pub use self::groups::{
+    FAVORITES_GROUP_ID, InstanceGroup, InstanceGroupMembershipUpdate,
+    create_group, delete_group, list_groups, rename_group,
+    set_group_memberships, set_group_order,
+};
 pub use self::home::{
     get_daily_playtime, get_daily_playtime_details, set_pinned,
 };

packages/app-lib/src/api/instance/run.rs

@@ -250,6 +250,17 @@ async fn run_credentials(
         .launch_overrides
         .maximize_window
         .unwrap_or(settings.maximize_window);
+    let window_title = settings
+        .custom_window_title_enabled
+        .then(|| {
+            context
+                .launch_overrides
+                .window_title
+                .clone()
+                .filter(|value| !value.trim().is_empty())
+                .unwrap_or_else(|| settings.default_window_title.clone())
+        })
+        .filter(|value| !value.trim().is_empty());
     let env_args = context
         .launch_overrides
         .custom_env_vars
@@ -319,6 +330,7 @@ async fn run_credentials(
         &memory,
         &resolution,
         maximize_window,
+        window_title,
         credentials,
         post_exit_hook,
         &context,

packages/app-lib/src/api/lobehub_text_models.json

@@ -1,5 +1,5 @@
 {
-	"source": "LobeHub 906b10e03029648655e0257bda4f785a9e0973f0 model-bank chat models",
+	"source": "LobeHub 6c7a6fb033e443bc27bf34cbd5509ab3db7f22f3 model-bank chat models",
 	"providers": {
 		"ai21": [
 			{
@@ -203,6 +203,16 @@
 			}
 		],
 		"aihubmix": [
+			{
+				"id": "gpt-6-sol",
+				"name": "GPT-6 Sol",
+				"enabled": true
+			},
+			{
+				"id": "gpt-6-luna",
+				"name": "GPT-6 Luna",
+				"enabled": true
+			},
 			{
 				"id": "gpt-5.5",
 				"name": "GPT-5.5",
@@ -343,6 +353,11 @@
 				"name": "ChatGPT-4o",
 				"enabled": false
 			},
+			{
+				"id": "grok-4.7",
+				"name": "Grok 4.7",
+				"enabled": true
+			},
 			{
 				"id": "grok-4-20-non-reasoning",
 				"name": "Grok 4.20 (Non-Reasoning)",
@@ -368,6 +383,11 @@
 				"name": "Grok 3 Mini",
 				"enabled": false
 			},
+			{
+				"id": "claude-opus-5-5",
+				"name": "Claude Opus 5.5",
+				"enabled": true
+			},
 			{
 				"id": "claude-opus-4-7",
 				"name": "Claude Opus 4.7",
@@ -383,11 +403,6 @@
 				"name": "Claude Opus 4.5",
 				"enabled": false
 			},
-			{
-				"id": "claude-opus-4-1-20250805",
-				"name": "Claude Opus 4.1",
-				"enabled": false
-			},
 			{
 				"id": "claude-sonnet-4-6",
 				"name": "Claude Sonnet 4.6",
@@ -403,6 +418,21 @@
 				"name": "Claude Haiku 4.5",
 				"enabled": true
 			},
+			{
+				"id": "mimo-v2.6-pro",
+				"name": "MiMo-V2.6 Pro",
+				"enabled": true
+			},
+			{
+				"id": "mimo-v2.6-pro-ultraspeed",
+				"name": "MiMo-V2.6 Pro UltraSpeed",
+				"enabled": true
+			},
+			{
+				"id": "mimo-v2.6-flash",
+				"name": "MiMo-V2.6 Flash",
+				"enabled": true
+			},
 			{
 				"id": "DeepSeek-V3.1-Think",
 				"name": "DeepSeek V3.1 (Think)",
@@ -542,11 +572,6 @@
 				"name": "Ring-2.6-1T",
 				"enabled": true
 			},
-			{
-				"id": "Ring-2.5-1T",
-				"name": "Ring-2.5-1T",
-				"enabled": false
-			},
 			{
 				"id": "Ling-3.0-flash",
 				"name": "Ling-3.0-flash",
@@ -561,14 +586,14 @@
 				"id": "Ling-2.6-flash",
 				"name": "Ling-2.6-flash",
 				"enabled": false
-			},
-			{
-				"id": "Ling-2.5-1T",
-				"name": "Ling-2.5-1T",
-				"enabled": false
 			}
 		],
 		"anthropic": [
+			{
+				"id": "claude-opus-5-5",
+				"name": "Claude Opus 5.5",
+				"enabled": true
+			},
 			{
 				"id": "claude-fable-5-1",
 				"name": "Claude Fable 5.1",
@@ -623,14 +648,24 @@
 				"id": "claude-haiku-4-5-20251001",
 				"name": "Claude Haiku 4.5",
 				"enabled": true
-			},
-			{
-				"id": "claude-opus-4-1-20250805",
-				"name": "Claude Opus 4.1",
-				"enabled": false
 			}
 		],
 		"azure": [
+			{
+				"id": "gpt-6-astra",
+				"name": "GPT-6 Astra",
+				"enabled": true
+			},
+			{
+				"id": "gpt-6-sol",
+				"name": "GPT-6 Sol",
+				"enabled": true
+			},
+			{
+				"id": "gpt-6-luna",
+				"name": "GPT-6 Luna",
+				"enabled": true
+			},
 			{
 				"id": "gpt-5.4",
 				"name": "GPT-5.4",
@@ -914,6 +949,11 @@
 			}
 		],
 		"bedrock": [
+			{
+				"id": "global.anthropic.claude-opus-5-5",
+				"name": "Claude Opus 5.5",
+				"enabled": true
+			},
 			{
 				"id": "global.anthropic.claude-opus-4-7",
 				"name": "Claude Opus 4.7",
@@ -1030,14 +1070,29 @@
 				"id": "gpt-oss-120b",
 				"name": "GPT OSS 120B",
 				"enabled": false
-			},
-			{
-				"id": "zai-glm-4.7",
-				"name": "GLM-4.7",
-				"enabled": false
 			}
 		],
 		"chatgpt": [
+			{
+				"id": "gpt-6.1-sol",
+				"name": "GPT-6.1 Sol",
+				"enabled": true
+			},
+			{
+				"id": "gpt-6-astra",
+				"name": "GPT-6 Astra",
+				"enabled": true
+			},
+			{
+				"id": "gpt-6-sol",
+				"name": "GPT-6 Sol",
+				"enabled": true
+			},
+			{
+				"id": "gpt-6-luna",
+				"name": "GPT-6 Luna",
+				"enabled": true
+			},
 			{
 				"id": "gpt-5.6-sol",
 				"name": "GPT-5.6 Sol",
@@ -1056,7 +1111,7 @@
 			{
 				"id": "gpt-5.5",
 				"name": "GPT-5.5",
-				"enabled": true
+				"enabled": false
 			}
 		],
 		"cloudflare": [
@@ -1883,10 +1938,15 @@
 				"name": "Gemini Flash-Lite Latest",
 				"enabled": false
 			},
+			{
+				"id": "gemini-3.8-flash",
+				"name": "Gemini 3.8 Flash",
+				"enabled": true
+			},
 			{
 				"id": "gemini-3.7-flash",
 				"name": "Gemini 3.7 Flash",
-				"enabled": true
+				"enabled": false
 			},
 			{
 				"id": "gemini-3.6-flash",
@@ -1972,26 +2032,6 @@
 				"id": "gemini-2.5-flash-lite",
 				"name": "Gemini 2.5 Flash-Lite",
 				"enabled": false
-			},
-			{
-				"id": "gemini-2.0-flash",
-				"name": "Gemini 2.0 Flash",
-				"enabled": false
-			},
-			{
-				"id": "gemini-2.0-flash-001",
-				"name": "Gemini 2.0 Flash 001",
-				"enabled": false
-			},
-			{
-				"id": "gemini-2.0-flash-lite",
-				"name": "Gemini 2.0 Flash-Lite",
-				"enabled": false
-			},
-			{
-				"id": "gemini-2.0-flash-lite-001",
-				"name": "Gemini 2.0 Flash-Lite 001",
-				"enabled": false
 			}
 		],
 		"groq": [
@@ -2005,10 +2045,15 @@
 				"name": "Compound Mini",
 				"enabled": false
 			},
+			{
+				"id": "qwen/qwen3.8-27b",
+				"name": "Qwen3.8 27B",
+				"enabled": true
+			},
 			{
 				"id": "qwen/qwen3.6-27b",
 				"name": "Qwen3.6 27B",
-				"enabled": true
+				"enabled": false
 			},
 			{
 				"id": "minimaxai/minimax-m2.7",
@@ -2025,16 +2070,6 @@
 				"name": "GPT OSS 20B",
 				"enabled": false
 			},
-			{
-				"id": "llama-3.1-8b-instant",
-				"name": "Llama 3.1 8B Instant",
-				"enabled": false
-			},
-			{
-				"id": "llama-3.3-70b-versatile",
-				"name": "Llama 3.3 70B Versatile",
-				"enabled": false
-			},
 			{
 				"id": "meta-llama/llama-prompt-guard-2-22m",
 				"name": "Llama Prompt Guard 2 22M",
@@ -3575,13 +3610,13 @@
 		],
 		"mistral": [
 			{
-				"id": "mistral-medium-3.5",
-				"name": "Mistral Medium 3.5",
-				"enabled": true
+				"id": "zai-glm-5-2",
+				"name": "Z.ai GLM 5.2",
+				"enabled": false
 			},
 			{
-				"id": "devstral-2512",
-				"name": "Devstral 2",
+				"id": "mistral-medium-3.5",
+				"name": "Mistral Medium 3.5",
 				"enabled": true
 			},
 			{
@@ -3589,61 +3624,21 @@
 				"name": "Devstral Small 2",
 				"enabled": false
 			},
-			{
-				"id": "mistral-medium-2508",
-				"name": "Mistral Medium 3.1",
-				"enabled": false
-			},
-			{
-				"id": "magistral-medium-2509",
-				"name": "Magistral Medium 1.2",
-				"enabled": false
-			},
-			{
-				"id": "magistral-small-2509",
-				"name": "Magistral Small 1.2",
-				"enabled": false
-			},
-			{
-				"id": "open-mistral-nemo",
-				"name": "Mistral Nemo",
-				"enabled": false
-			},
 			{
 				"id": "mistral-small-2603",
 				"name": "Mistral Small 4",
 				"enabled": false
 			},
-			{
-				"id": "mistral-small-2506",
-				"name": "Mistral Small 3.2",
-				"enabled": false
-			},
 			{
 				"id": "mistral-large-2512",
 				"name": "Mistral Large 3",
 				"enabled": true
 			},
-			{
-				"id": "mistral-large-2411",
-				"name": "Mistral Large 2.1",
-				"enabled": false
-			},
 			{
 				"id": "codestral-latest",
 				"name": "Codestral 2508",
 				"enabled": false
 			},
-			{
-				"id": "pixtral-large-latest",
-				"name": "Pixtral Large",
-				"enabled": false
-			},
-			{
-				"id": "pixtral-12b-2409",
-				"name": "Pixtral 12B",
-				"enabled": false
-			},
 			{
 				"id": "ministral-3b-latest",
 				"name": "Ministral 3B",
@@ -3653,16 +3648,6 @@
 				"id": "ministral-8b-latest",
 				"name": "Ministral 8B",
 				"enabled": false
-			},
-			{
-				"id": "open-codestral-mamba",
-				"name": "Codestral Mamba",
-				"enabled": false
-			},
-			{
-				"id": "labs-leanstral-2603",
-				"name": "Leanstral",
-				"enabled": false
 			}
 		],
 		"modelscope": [
@@ -3676,30 +3661,10 @@
 				"name": "Qwen3 Next 80B A3B Instruct",
 				"enabled": false
 			},
-			{
-				"id": "deepseek-ai/DeepSeek-V3.2",
-				"name": "DeepSeek V3.2",
-				"enabled": true
-			},
-			{
-				"id": "deepseek-ai/DeepSeek-V3.2-Exp",
-				"name": "DeepSeek V3.2 Exp",
-				"enabled": false
-			},
-			{
-				"id": "deepseek-ai/DeepSeek-V3.1",
-				"name": "DeepSeek V3.1",
-				"enabled": false
-			},
 			{
 				"id": "Qwen/Qwen3-235B-A22B",
 				"name": "Qwen3 235B A22B",
 				"enabled": false
-			},
-			{
-				"id": "Qwen/Qwen3-32B",
-				"name": "Qwen3 32B",
-				"enabled": false
 			}
 		],
 		"moonshot": [
@@ -3722,41 +3687,6 @@
 				"id": "kimi-k2.6",
 				"name": "Kimi K2.6",
 				"enabled": false
-			},
-			{
-				"id": "kimi-k2.5",
-				"name": "Kimi K2.5",
-				"enabled": false
-			},
-			{
-				"id": "moonshot-v1-8k",
-				"name": "Moonshot V1 8K",
-				"enabled": false
-			},
-			{
-				"id": "moonshot-v1-32k",
-				"name": "Moonshot V1 32K",
-				"enabled": false
-			},
-			{
-				"id": "moonshot-v1-128k",
-				"name": "Moonshot V1 128K",
-				"enabled": false
-			},
-			{
-				"id": "moonshot-v1-8k-vision-preview",
-				"name": "Moonshot V1 8K Vision Preview",
-				"enabled": false
-			},
-			{
-				"id": "moonshot-v1-32k-vision-preview",
-				"name": "Moonshot V1 32K Vision Preview",
-				"enabled": false
-			},
-			{
-				"id": "moonshot-v1-128k-vision-preview",
-				"name": "Moonshot V1 128K Vision Preview",
-				"enabled": false
 			}
 		],
 		"nebius": [
@@ -4424,16 +4354,6 @@
 				"name": "Qwen3.5 397B A17B",
 				"enabled": false
 			},
-			{
-				"id": "minimax-m2.5",
-				"name": "MiniMax M2.5",
-				"enabled": false
-			},
-			{
-				"id": "kimi-k2.5",
-				"name": "Kimi K2.5",
-				"enabled": false
-			},
 			{
 				"id": "gpt-oss:20b",
 				"name": "GPT-OSS 20B",
@@ -4451,6 +4371,26 @@
 			}
 		],
 		"openai": [
+			{
+				"id": "gpt-6.1-sol",
+				"name": "GPT-6.1 Sol",
+				"enabled": true
+			},
+			{
+				"id": "gpt-6-astra",
+				"name": "GPT-6 Astra",
+				"enabled": true
+			},
+			{
+				"id": "gpt-6-sol",
+				"name": "GPT-6 Sol",
+				"enabled": true
+			},
+			{
+				"id": "gpt-6-luna",
+				"name": "GPT-6 Luna",
+				"enabled": true
+			},
 			{
 				"id": "chat-latest",
 				"name": "Chat Latest",
@@ -4474,7 +4414,7 @@
 			{
 				"id": "gpt-5.5",
 				"name": "GPT-5.5",
-				"enabled": true
+				"enabled": false
 			},
 			{
 				"id": "gpt-5.5-pro",
@@ -4484,7 +4424,7 @@
 			{
 				"id": "gpt-5.4",
 				"name": "GPT-5.4",
-				"enabled": true
+				"enabled": false
 			},
 			{
 				"id": "gpt-5.4-pro",
@@ -4494,7 +4434,7 @@
 			{
 				"id": "gpt-5.4-mini",
 				"name": "GPT-5.4 mini",
-				"enabled": true
+				"enabled": false
 			},
 			{
 				"id": "gpt-5.4-nano",
@@ -4708,6 +4648,16 @@
 				"name": "MiniMax M3",
 				"enabled": false
 			},
+			{
+				"id": "muse-spark-1.2-contributor",
+				"name": "Muse Spark 1.2 Contributor",
+				"enabled": false
+			},
+			{
+				"id": "muse-spark-1.3-contributor",
+				"name": "Muse Spark 1.3 Contributor",
+				"enabled": true
+			},
 			{
 				"id": "qwen3.6-plus",
 				"name": "Qwen3.6 Plus",
@@ -4912,6 +4862,41 @@
 				"name": "Auto (best for prompt)",
 				"enabled": true
 			},
+			{
+				"id": "anthropic/claude-opus-5.5",
+				"name": "Claude Opus 5.5",
+				"enabled": true
+			},
+			{
+				"id": "openai/gpt-6-sol",
+				"name": "GPT-6 Sol",
+				"enabled": true
+			},
+			{
+				"id": "openai/gpt-6-luna",
+				"name": "GPT-6 Luna",
+				"enabled": true
+			},
+			{
+				"id": "x-ai/grok-4.7",
+				"name": "Grok 4.7",
+				"enabled": true
+			},
+			{
+				"id": "xiaomi/mimo-v2.6-pro",
+				"name": "MiMo-V2.6 Pro",
+				"enabled": true
+			},
+			{
+				"id": "xiaomi/mimo-v2.6-pro-ultraspeed",
+				"name": "MiMo-V2.6 Pro UltraSpeed",
+				"enabled": true
+			},
+			{
+				"id": "xiaomi/mimo-v2.6-flash",
+				"name": "MiMo-V2.6 Flash",
+				"enabled": true
+			},
 			{
 				"id": "deepseek/deepseek-chat-v3.1",
 				"name": "DeepSeek V3.1",
@@ -5260,6 +5245,26 @@
 			}
 		],
 		"qwen": [
+			{
+				"id": "deepseek-v4-pro-0813",
+				"name": "DeepSeek V4 Pro 0813",
+				"enabled": false
+			},
+			{
+				"id": "deepseek-v4-flash-0731",
+				"name": "DeepSeek V4 Flash 0731",
+				"enabled": false
+			},
+			{
+				"id": "qwen3.8-max-0902",
+				"name": "Qwen3.8 Max 0902",
+				"enabled": true
+			},
+			{
+				"id": "qwen3.8-max",
+				"name": "Qwen3.8 Max",
+				"enabled": true
+			},
 			{
 				"id": "kimi-k2.6",
 				"name": "Kimi K2.6",
@@ -5490,10 +5495,15 @@
 				"name": "QwQ Plus",
 				"enabled": false
 			},
+			{
+				"id": "qwen3.8-flash",
+				"name": "Qwen3.8 Flash",
+				"enabled": true
+			},
 			{
 				"id": "qwen3.7-flash",
 				"name": "Qwen3.7 Flash",
-				"enabled": true
+				"enabled": false
 			},
 			{
 				"id": "qwen3.6-flash",
@@ -5802,75 +5812,40 @@
 			}
 		],
 		"sambanova": [
+			{
+				"id": "MiniMax-M2.7",
+				"name": "MiniMax M2.7",
+				"enabled": false
+			},
+			{
+				"id": "DeepSeek-V3.1",
+				"name": "DeepSeek V3.1",
+				"enabled": false
+			},
 			{
 				"id": "Meta-Llama-3.3-70B-Instruct",
 				"name": "Meta Llama 3.3 70B Instruct",
-				"enabled": true
-			},
-			{
-				"id": "Meta-Llama-3.2-1B-Instruct",
-				"name": "Meta Llama 3.2 1B Instruct",
 				"enabled": false
 			},
 			{
-				"id": "Meta-Llama-3.2-3B-Instruct",
-				"name": "Meta Llama 3.2 3B Instruct",
-				"enabled": false
-			},
-			{
-				"id": "Llama-3.2-11B-Vision-Instruct",
-				"name": "Meta Llama 3.2 11B Vision Instruct",
+				"id": "gpt-oss-120b",
+				"name": "GPT OSS 120B",
 				"enabled": true
 			},
 			{
-				"id": "Llama-3.2-90B-Vision-Instruct",
-				"name": "Meta Llama 3.2 90B Vision Instruct",
+				"id": "MiniMax-M3",
+				"name": "MiniMax M3",
 				"enabled": true
 			},
 			{
-				"id": "Meta-Llama-3.1-8B-Instruct",
-				"name": "Meta Llama 3.1 8B Instruct",
+				"id": "DeepSeek-V3.2",
+				"name": "DeepSeek V3.2",
 				"enabled": false
 			},
 			{
-				"id": "Meta-Llama-3.1-70B-Instruct",
-				"name": "Meta Llama 3.1 70B Instruct",
+				"id": "gemma-4-31B-it",
+				"name": "Gemma 4 31B IT",
 				"enabled": false
-			},
-			{
-				"id": "Meta-Llama-3.1-405B-Instruct",
-				"name": "Meta Llama 3.1 405B Instruct",
-				"enabled": false
-			},
-			{
-				"id": "Llama-3.1-Tulu-3-405B",
-				"name": "Llama 3.1 Tulu 3 405B",
-				"enabled": false
-			},
-			{
-				"id": "DeepSeek-R1",
-				"name": "DeepSeek R1",
-				"enabled": false
-			},
-			{
-				"id": "DeepSeek-R1-Distill-Llama-70B",
-				"name": "DeepSeek R1 Distill Llama 70B",
-				"enabled": true
-			},
-			{
-				"id": "QwQ-32B-Preview",
-				"name": "QwQ 32B Preview",
-				"enabled": true
-			},
-			{
-				"id": "Qwen2.5-72B-Instruct",
-				"name": "Qwen2.5 72B Instruct",
-				"enabled": true
-			},
-			{
-				"id": "Qwen2.5-Coder-32B-Instruct",
-				"name": "Qwen2.5 Coder 32B Instruct",
-				"enabled": true
 			}
 		],
 		"search1api": [
@@ -6262,6 +6237,11 @@
 			}
 		],
 		"stepfun": [
+			{
+				"id": "step-5-preview",
+				"name": "Step 5 Preview",
+				"enabled": true
+			},
 			{
 				"id": "step-3.7-flash",
 				"name": "Step 3.7 Flash",
@@ -6407,6 +6387,16 @@
 			}
 		],
 		"supergrok": [
+			{
+				"id": "grok-4.7",
+				"name": "Grok 4.7",
+				"enabled": true
+			},
+			{
+				"id": "grok-4.6",
+				"name": "Grok 4.6",
+				"enabled": true
+			},
 			{
 				"id": "grok-4.5",
 				"name": "Grok 4.5",
@@ -7166,10 +7156,15 @@
 			}
 		],
 		"vertexai": [
+			{
+				"id": "gemini-3.8-flash",
+				"name": "Gemini 3.8 Flash",
+				"enabled": true
+			},
 			{
 				"id": "gemini-3.7-flash",
 				"name": "Gemini 3.7 Flash",
-				"enabled": true
+				"enabled": false
 			},
 			{
 				"id": "gemini-3.6-flash",
@@ -7345,20 +7340,30 @@
 				"name": "Doubao Seed 2.1 Turbo",
 				"enabled": true
 			},
+			{
+				"id": "deepseek-v4-pro-ga",
+				"name": "DeepSeek V4 Pro 0813",
+				"enabled": false
+			},
+			{
+				"id": "deepseek-v4-flash-ga",
+				"name": "DeepSeek V4 Flash 0731",
+				"enabled": false
+			},
 			{
 				"id": "glm-5-2",
 				"name": "GLM-5.2",
-				"enabled": true
+				"enabled": false
 			},
 			{
 				"id": "deepseek-v4-pro",
 				"name": "DeepSeek V4 Pro",
-				"enabled": true
+				"enabled": false
 			},
 			{
 				"id": "deepseek-v4-flash",
 				"name": "DeepSeek V4 Flash",
-				"enabled": true
+				"enabled": false
 			},
 			{
 				"id": "doubao-seed-2.0-pro",
@@ -7701,6 +7706,16 @@
 			}
 		],
 		"xai": [
+			{
+				"id": "grok-4.7",
+				"name": "Grok 4.7",
+				"enabled": true
+			},
+			{
+				"id": "grok-4.6",
+				"name": "Grok 4.6",
+				"enabled": true
+			},
 			{
 				"id": "grok-4.5",
 				"name": "Grok 4.5",
@@ -7728,6 +7743,21 @@
 			}
 		],
 		"xiaomimimo": [
+			{
+				"id": "mimo-v2.6-pro",
+				"name": "MiMo-V2.6 Pro",
+				"enabled": true
+			},
+			{
+				"id": "mimo-v2.6-pro-ultraspeed",
+				"name": "MiMo-V2.6 Pro UltraSpeed",
+				"enabled": true
+			},
+			{
+				"id": "mimo-v2.6-flash",
+				"name": "MiMo-V2.6 Flash",
+				"enabled": true
+			},
 			{
 				"id": "mimo-v2.5-pro",
 				"name": "MiMo-V2.5 Pro",

packages/app-lib/src/api/logs.rs

@@ -1,6 +1,6 @@
 use std::fmt::Write as _;
 use std::io::{BufRead, Read, SeekFrom};
-use std::path::Path;
+use std::path::{Path, PathBuf};
 use std::time::SystemTime;
 
 use futures::TryFutureExt;
@@ -27,6 +27,15 @@ pub use crash_analysis::{
     update_crash_analysis_ai_settings,
 };
 
+mod logshare;
+pub use logshare::{
+    LogShareDeleteResponse, LogShareSettings, LogShareUploadResponse,
+    SharedLog, ai_analyze_direct, ai_analyze_stored, analyse_crash_direct,
+    delete_log, delete_shared_log, get_insights, get_log_share_settings,
+    list_shared_logs, record_shared_log, update_log_share_settings,
+    upload_crash,
+};
+
 #[derive(Serialize, Debug)]
 pub struct Logs {
     pub log_type: LogType,
@@ -39,6 +48,54 @@ pub struct Logs {
 pub enum LogType {
     InfoLog,
     CrashReport,
+    JvmCrash,
+    LauncherLog,
+}
+
+fn isolated_minecraft_root(instance_root: &Path) -> Option<PathBuf> {
+    let versions_dir = instance_root.parent()?;
+    if versions_dir
+        .file_name()
+        .is_some_and(|name| name.eq_ignore_ascii_case("versions"))
+    {
+        versions_dir.parent().map(Path::to_path_buf)
+    } else {
+        None
+    }
+}
+
+fn log_directories_for_type(
+    state: &State,
+    game_dir: &Path,
+    log_type: LogType,
+) -> Vec<PathBuf> {
+    match log_type {
+        LogType::InfoLog => vec![state.directories.game_logs_dir(game_dir)],
+        LogType::CrashReport => {
+            vec![state.directories.game_crash_reports_dir(game_dir)]
+        }
+        LogType::JvmCrash | LogType::LauncherLog => {
+            let mut directories = vec![game_dir.to_path_buf()];
+            if let Some(root) = isolated_minecraft_root(game_dir) {
+                directories.push(root);
+            }
+            directories
+        }
+    }
+}
+
+fn is_log_file_for_type(log_type: LogType, file_name: &str) -> bool {
+    match log_type {
+        LogType::JvmCrash => {
+            let lower = file_name.to_ascii_lowercase();
+            lower.starts_with("hs_err") && lower.ends_with(".log")
+        }
+        LogType::LauncherLog => matches!(
+            file_name.to_ascii_lowercase().as_str(),
+            "launcher_log.txt" | "latest_stdout.log"
+        ),
+        _ => true,
+    }
 }
 
 const LOG_COMPACTION_THRESHOLD: usize = 20;
@@ -448,14 +505,11 @@ pub async fn get_logs_from_type(
         .directories
         .resolve_game_dir(&instance_path, game_dir_override.as_deref());
 
-    let logs_folder = match log_type {
-        LogType::InfoLog => state.directories.game_logs_dir(&game_dir),
-        LogType::CrashReport => {
-            state.directories.game_crash_reports_dir(&game_dir)
+    let mut seen_files = std::collections::HashSet::new();
+    for logs_folder in log_directories_for_type(&state, &game_dir, log_type) {
+        if !logs_folder.exists() {
+            continue;
         }
-    };
-
-    if logs_folder.exists() {
         for entry in std::fs::read_dir(&logs_folder)
             .map_err(|e| IOError::with_path(e, &logs_folder))?
         {
@@ -471,6 +525,12 @@ pub async fn get_logs_from_type(
             }
             if let Some(file_name) = path.file_name() {
                 let file_name = file_name.to_string_lossy().to_string();
+                if !is_log_file_for_type(log_type, &file_name) {
+                    continue;
+                }
+                if !seen_files.insert(file_name.clone()) {
+                    continue;
+                }
                 logs.push(
                     Logs::build(
                         log_type,
@@ -507,6 +567,20 @@ pub async fn get_logs(
         &mut logs,
     )
     .await?;
+    get_logs_from_type(
+        instance_id,
+        LogType::JvmCrash,
+        clear_contents,
+        &mut logs,
+    )
+    .await?;
+    get_logs_from_type(
+        instance_id,
+        LogType::LauncherLog,
+        clear_contents,
+        &mut logs,
+    )
+    .await?;
 
     let mut logs = logs.into_iter().collect::<crate::Result<Vec<Logs>>>()?;
     logs.sort_by(|a, b| b.age.cmp(&a.age).then(b.filename.cmp(&a.filename)));
@@ -526,13 +600,15 @@ pub async fn get_logs_by_filename(
         .directories
         .resolve_game_dir(&instance_path, game_dir_override.as_deref());
 
-    let path = match log_type {
-        LogType::InfoLog => state.directories.game_logs_dir(&game_dir),
-        LogType::CrashReport => {
-            state.directories.game_crash_reports_dir(&game_dir)
-        }
-    }
-    .join(&filename);
+    let path = log_directories_for_type(&state, &game_dir, log_type)
+        .into_iter()
+        .map(|directory| directory.join(&filename))
+        .find(|path| path.is_file())
+        .ok_or_else(|| {
+            crate::ErrorKind::OtherError(format!(
+                "Log file not found: {filename}"
+            ))
+        })?;
 
     let metadata = std::fs::metadata(&path)?;
     let age = metadata.modified().unwrap_or(SystemTime::UNIX_EPOCH);
@@ -546,14 +622,15 @@ async fn get_output_by_filename_from_path(
     log_type: LogType,
     file_name: &str,
 ) -> crate::Result<CensoredString> {
-    let logs_folder = match log_type {
-        LogType::InfoLog => state.directories.game_logs_dir(game_dir),
-        LogType::CrashReport => {
-            state.directories.game_crash_reports_dir(game_dir)
-        }
-    };
-
-    let path = logs_folder.join(file_name);
+    let path = log_directories_for_type(state, game_dir, log_type)
+        .into_iter()
+        .map(|directory| directory.join(file_name))
+        .find(|path| path.is_file())
+        .ok_or_else(|| {
+            crate::ErrorKind::OtherError(format!(
+                "Log file not found: {file_name}"
+            ))
+        })?;
 
     let credentials = Credentials::get_all(&state.pool)
         .await?
@@ -650,14 +727,15 @@ pub async fn delete_logs_by_filename(
         .directories
         .resolve_game_dir(&instance_path, game_dir_override.as_deref());
 
-    let logs_folder = match log_type {
-        LogType::InfoLog => state.directories.game_logs_dir(&game_dir),
-        LogType::CrashReport => {
-            state.directories.game_crash_reports_dir(&game_dir)
-        }
-    };
-
-    let path = logs_folder.join(filename);
+    let path = log_directories_for_type(&state, &game_dir, log_type)
+        .into_iter()
+        .map(|directory| directory.join(filename))
+        .find(|path| path.is_file())
+        .ok_or_else(|| {
+            crate::ErrorKind::OtherError(format!(
+                "Log file not found: {filename}"
+            ))
+        })?;
     io::remove_file(&path).await?;
     Ok(())
 }

packages/app-lib/src/api/logs/logshare.rs

@@ -0,0 +1,649 @@
+use std::time::{Duration, SystemTime, UNIX_EPOCH};
+
+use futures::StreamExt;
+use serde::{Deserialize, Serialize};
+use serde_json::{Value, json};
+
+use super::CensoredString;
+use super::crash_analysis::analyze_crash;
+use crate::State;
+use crate::emit_logshare_ai_event;
+
+const LOGSHARE_BASE_URL: &str = "https://api.logshare.cn";
+const LOGSHARE_AI_READ_TIMEOUT_SECS: u64 = 300;
+const LOGSHARE_SOURCE_PREFIX: &str = "starlight";
+
+#[derive(Serialize, Deserialize, Debug, Clone)]
+pub struct LogShareSettings {
+    pub share_provider: String,
+    pub ai_source: String,
+    pub auto_upload: bool,
+    pub multi_file: bool,
+    pub no_storage: bool,
+    pub show_progress: bool,
+}
+
+impl Default for LogShareSettings {
+    fn default() -> Self {
+        Self {
+            share_provider: "logshare".to_string(),
+            ai_source: "logshare".to_string(),
+            auto_upload: true,
+            multi_file: true,
+            no_storage: false,
+            show_progress: true,
+        }
+    }
+}
+
+#[derive(Serialize, Deserialize, Debug, Clone)]
+pub struct SharedLog {
+    pub id: String,
+    pub url: String,
+    pub raw: String,
+    pub token: String,
+    pub provider: String,
+    pub instance_id: Option<String>,
+    pub instance_name: Option<String>,
+    pub truncated: bool,
+    pub created_at: i64,
+}
+
+#[derive(Serialize, Deserialize, Debug, Clone)]
+pub struct LogShareUploadResponse {
+    pub success: bool,
+    pub id: String,
+    pub url: String,
+    pub raw: String,
+    pub token: String,
+}
+
+#[derive(Serialize, Deserialize, Debug, Clone)]
+pub struct LogShareDeleteResponse {
+    pub success: bool,
+    pub deleted: Vec<String>,
+    pub failed: Vec<String>,
+}
+
+#[derive(Serialize, Debug, Clone)]
+#[serde(rename_all = "snake_case")]
+struct UploadFile {
+    name: String,
+    content: String,
+}
+
+#[derive(Serialize, Debug, Clone)]
+struct UploadBody {
+    content: String,
+    #[serde(skip_serializing_if = "Vec::is_empty")]
+    files: Vec<UploadFile>,
+    source: String,
+}
+
+pub async fn get_log_share_settings() -> crate::Result<LogShareSettings> {
+    let state = State::get().await?;
+    let row = sqlx::query_as::<_, (String, String, i64, i64, i64, i64)>(
+        "SELECT share_provider, ai_source, auto_upload, multi_file, no_storage, show_progress FROM log_share_settings WHERE id = 0",
+    )
+    .fetch_one(&state.pool)
+    .await?;
+    Ok(LogShareSettings {
+        share_provider: row.0,
+        ai_source: row.1,
+        auto_upload: row.2 != 0,
+        multi_file: row.3 != 0,
+        no_storage: row.4 != 0,
+        show_progress: row.5 != 0,
+    })
+}
+
+pub async fn update_log_share_settings(
+    settings: LogShareSettings,
+) -> crate::Result<()> {
+    let settings = normalize_settings(settings);
+    let state = State::get().await?;
+    sqlx::query(
+        "UPDATE log_share_settings SET share_provider = ?, ai_source = ?, auto_upload = ?, multi_file = ?, no_storage = ?, show_progress = ? WHERE id = 0",
+    )
+    .bind(&settings.share_provider)
+    .bind(&settings.ai_source)
+    .bind(settings.auto_upload)
+    .bind(settings.multi_file)
+    .bind(settings.no_storage)
+    .bind(settings.show_progress)
+    .execute(&state.pool)
+    .await?;
+    Ok(())
+}
+
+fn normalize_settings(mut settings: LogShareSettings) -> LogShareSettings {
+    if settings.share_provider != "logshare" {
+        settings.share_provider = "mclogs".to_string();
+    }
+    if settings.ai_source != "logshare" {
+        settings.ai_source = "custom".to_string();
+    }
+    settings
+}
+
+pub async fn list_shared_logs() -> crate::Result<Vec<SharedLog>> {
+    let state = State::get().await?;
+    let rows = sqlx::query_as::<_, (String, String, String, String, String, Option<String>, Option<String>, i64, i64)>(
+        "SELECT id, url, raw, token, provider, instance_id, instance_name, truncated, created_at FROM shared_logs ORDER BY created_at DESC",
+    )
+    .fetch_all(&state.pool)
+    .await?;
+    Ok(rows
+        .into_iter()
+        .map(|row| SharedLog {
+            id: row.0,
+            url: row.1,
+            raw: row.2,
+            token: row.3,
+            provider: row.4,
+            instance_id: row.5,
+            instance_name: row.6,
+            truncated: row.7 != 0,
+            created_at: row.8,
+        })
+        .collect())
+}
+
+pub async fn record_shared_log(log: SharedLog) -> crate::Result<()> {
+    let state = State::get().await?;
+    let created_at = log.created_at.max(now_seconds());
+    sqlx::query(
+        "INSERT INTO shared_logs (id, url, raw, token, provider, instance_id, instance_name, truncated, created_at) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)
+         ON CONFLICT(id) DO UPDATE SET url = excluded.url, raw = excluded.raw, token = excluded.token, provider = excluded.provider, instance_id = excluded.instance_id, instance_name = excluded.instance_name, truncated = excluded.truncated",
+    )
+    .bind(&log.id)
+    .bind(&log.url)
+    .bind(&log.raw)
+    .bind(&log.token)
+    .bind(&log.provider)
+    .bind(&log.instance_id)
+    .bind(&log.instance_name)
+    .bind(log.truncated)
+    .bind(created_at)
+    .execute(&state.pool)
+    .await?;
+    Ok(())
+}
+
+async fn remove_shared_log_record(id: &str) -> crate::Result<()> {
+    let state = State::get().await?;
+    sqlx::query("DELETE FROM shared_logs WHERE id = ?")
+        .bind(id)
+        .execute(&state.pool)
+        .await?;
+    Ok(())
+}
+
+pub async fn delete_shared_log(id: String, token: String) -> crate::Result<()> {
+    let remote_result = delete_log(&id, &token).await;
+    if let Err(error) = remote_result {
+        tracing::warn!(
+            "Remote LogShare deletion failed for {id}; removing the local record anyway: {error}"
+        );
+    }
+    remove_shared_log_record(&id).await
+}
+
+fn now_seconds() -> i64 {
+    SystemTime::now()
+        .duration_since(UNIX_EPOCH)
+        .unwrap_or_default()
+        .as_secs() as i64
+}
+
+fn source_identifier() -> String {
+    format!("{LOGSHARE_SOURCE_PREFIX}/{}", env!("CARGO_PKG_VERSION"))
+}
+
+struct CollectedCrashLog {
+    name: String,
+    content: CensoredString,
+}
+
+struct CollectedCrashLogs {
+    combined_log: CensoredString,
+    sources: Vec<CollectedCrashLog>,
+}
+
+async fn collect_crash_logs(
+    instance_id: &str,
+) -> crate::Result<CollectedCrashLogs> {
+    let analysis = analyze_crash(instance_id).await?;
+    Ok(CollectedCrashLogs {
+        combined_log: analysis.combined_log,
+        sources: analysis
+            .sources
+            .into_iter()
+            .map(|source| CollectedCrashLog {
+                name: source.filename,
+                content: source.content,
+            })
+            .collect(),
+    })
+}
+async fn prepare_upload(instance_id: &str) -> crate::Result<UploadBody> {
+    let settings = get_log_share_settings().await?;
+    let logs = collect_crash_logs(instance_id).await?;
+
+    let combined = logs.combined_log.as_str().to_string();
+    let files = if settings.multi_file {
+        logs.sources
+            .iter()
+            .map(|source| UploadFile {
+                name: source.name.clone(),
+                content: source.content.as_str().to_string(),
+            })
+            .collect::<Vec<_>>()
+    } else {
+        Vec::new()
+    };
+    Ok(UploadBody {
+        content: combined,
+        files,
+        source: source_identifier(),
+    })
+}
+
+async fn request_client() -> crate::Result<reqwest::Client> {
+    let state = State::get().await?;
+    let proxy = state.proxy_config().await?;
+    let builder = reqwest::Client::builder()
+        .connect_timeout(Duration::from_secs(30))
+        .read_timeout(Duration::from_secs(LOGSHARE_AI_READ_TIMEOUT_SECS))
+        .user_agent(crate::launcher_user_agent());
+    proxy.apply(builder)?.build().map_err(Into::into)
+}
+
+pub async fn upload_crash(
+    instance_id: &str,
+) -> crate::Result<LogShareUploadResponse> {
+    let prepared = prepare_upload(instance_id).await?;
+    let client = request_client().await?;
+    let body_value = serde_json::to_value(&prepared)?;
+    let request = client
+        .post(format!("{LOGSHARE_BASE_URL}/v1/log"))
+        .header("Accept", "application/json")
+        .header("Accept-Encoding", "br, gzip");
+
+    let response = request.json(&body_value).send().await?;
+    let status = response.status();
+    let text = response.text().await?;
+    if !status.is_success() {
+        return Err(crate::ErrorKind::OtherError(format!(
+            "LogShare upload failed with HTTP {status}: {}",
+            text.chars().take(500).collect::<String>()
+        ))
+        .into());
+    }
+    let value: Value = serde_json::from_str(&text).map_err(|_| {
+        crate::ErrorKind::OtherError(
+            "LogShare returned invalid JSON".to_string(),
+        )
+    })?;
+    if value.get("success").and_then(Value::as_bool) != Some(true) {
+        return Err(crate::ErrorKind::OtherError(format!(
+            "LogShare upload failed: {}",
+            value
+                .get("error")
+                .and_then(Value::as_str)
+                .unwrap_or("unknown error")
+        ))
+        .into());
+    }
+    Ok(LogShareUploadResponse {
+        success: true,
+        id: value
+            .get("id")
+            .and_then(Value::as_str)
+            .unwrap_or_default()
+            .to_string(),
+        url: value
+            .get("url")
+            .and_then(Value::as_str)
+            .unwrap_or_default()
+            .to_string(),
+        raw: value
+            .get("raw")
+            .and_then(Value::as_str)
+            .unwrap_or_default()
+            .to_string(),
+        token: value
+            .get("token")
+            .and_then(Value::as_str)
+            .unwrap_or_default()
+            .to_string(),
+    })
+}
+
+pub async fn get_insights(id: &str) -> crate::Result<Value> {
+    let client = request_client().await?;
+    let response = client
+        .get(format!("{LOGSHARE_BASE_URL}/v1/insights/{id}"))
+        .header("Accept", "application/json")
+        .header("Accept-Encoding", "br, gzip")
+        .send()
+        .await?;
+    let status = response.status();
+    let text = response.text().await?;
+    if !status.is_success() {
+        return Err(crate::ErrorKind::OtherError(format!(
+            "LogShare analysis failed with HTTP {status}: {}",
+            text.chars().take(500).collect::<String>()
+        ))
+        .into());
+    }
+    serde_json::from_str(&text).map_err(|_| {
+        crate::ErrorKind::OtherError(
+            "LogShare returned invalid insights JSON".to_string(),
+        )
+        .into()
+    })
+}
+
+pub async fn analyse_crash_direct(instance_id: &str) -> crate::Result<Value> {
+    let prepared = prepare_upload(instance_id).await?;
+    let client = request_client().await?;
+    let response = client
+        .post(format!("{LOGSHARE_BASE_URL}/v1/analyse"))
+        .header("Accept", "application/json")
+        .header("Accept-Encoding", "br, gzip")
+        .json(&prepared)
+        .send()
+        .await?;
+    let status = response.status();
+    let text = response.text().await?;
+    if !status.is_success() {
+        return Err(crate::ErrorKind::OtherError(format!(
+            "LogShare analysis failed with HTTP {status}: {}",
+            text.chars().take(500).collect::<String>()
+        ))
+        .into());
+    }
+    serde_json::from_str(&text).map_err(|_| {
+        crate::ErrorKind::OtherError(
+            "LogShare returned invalid analysis JSON".to_string(),
+        )
+        .into()
+    })
+}
+
+pub async fn delete_log(
+    id: &str,
+    token: &str,
+) -> crate::Result<LogShareDeleteResponse> {
+    let client = request_client().await?;
+    let response = client
+        .delete(format!("{LOGSHARE_BASE_URL}/v1/log/{id}"))
+        .bearer_auth(token)
+        .header("Accept", "application/json")
+        .header("Accept-Encoding", "br, gzip")
+        .send()
+        .await?;
+    let status = response.status();
+    let text = response.text().await?;
+    if !status.is_success() {
+        return Err(crate::ErrorKind::OtherError(format!(
+            "LogShare deletion failed with HTTP {status}: {}",
+            text.chars().take(500).collect::<String>()
+        ))
+        .into());
+    }
+    serde_json::from_str(&text).map_err(|_| {
+        crate::ErrorKind::OtherError(
+            "LogShare returned invalid deletion JSON".to_string(),
+        )
+        .into()
+    })
+}
+
+pub async fn ai_analyze_stored(
+    instance_id: &str,
+    id: &str,
+) -> crate::Result<String> {
+    let url = format!("{LOGSHARE_BASE_URL}/v1/ai/{id}");
+    stream_ai(instance_id, url, None).await
+}
+
+pub async fn ai_analyze_direct(instance_id: &str) -> crate::Result<String> {
+    let prepared = prepare_upload(instance_id).await?;
+    let url = format!("{LOGSHARE_BASE_URL}/v1/ai/analyse");
+    let body = serde_json::to_value(&prepared)?;
+    stream_ai(instance_id, url, Some(body)).await
+}
+
+async fn stream_ai(
+    instance_id: &str,
+    url: String,
+    body: Option<Value>,
+) -> crate::Result<String> {
+    let settings = get_log_share_settings().await?;
+    let show_progress = settings.show_progress;
+    let client = request_client().await?;
+    let mut request = client
+        .request(
+            if body.is_some() {
+                reqwest::Method::POST
+            } else {
+                reqwest::Method::GET
+            },
+            url.as_str(),
+        )
+        .header("Accept", "text/event-stream")
+        .header("Accept-Encoding", "br, gzip");
+    if let Some(payload) = body {
+        request = request.json(&payload);
+    }
+
+    let response = request.send().await?;
+    let status = response.status();
+    if !status.is_success() {
+        if status == reqwest::StatusCode::TOO_MANY_REQUESTS {
+            return Err(crate::ErrorKind::OtherError(
+                "LogAgent queue is full, please retry later".to_string(),
+            )
+            .into());
+        }
+        let text = response.text().await?;
+        return Err(crate::ErrorKind::OtherError(format!(
+            "LogAgent analysis failed with HTTP {status}: {}",
+            text.chars().take(500).collect::<String>()
+        ))
+        .into());
+    }
+
+    let mut stream = response.bytes_stream();
+    let mut parser = SseParser::new();
+    let mut output = String::new();
+
+    loop {
+        let maybe = tokio::time::timeout(
+            Duration::from_secs(LOGSHARE_AI_READ_TIMEOUT_SECS),
+            stream.next(),
+        )
+        .await
+        .map_err(|_| {
+            crate::ErrorKind::OtherError(
+                "LogAgent analysis timed out".to_string(),
+            )
+        })?;
+        let Some(chunk) = maybe else {
+            break;
+        };
+        let chunk = chunk?;
+        for event in parser.feed(&chunk) {
+            if let Some(delta) = event.content {
+                output.push_str(&delta);
+                if show_progress {
+                    emit_logshare_ai_event(
+                        instance_id,
+                        "delta",
+                        json!({ "content": delta }),
+                    )
+                    .await?;
+                }
+            }
+            if let Some(status_event) = event.status_event {
+                if show_progress || status_event.event_type == "queued" {
+                    emit_logshare_ai_event(
+                        instance_id,
+                        &status_event.event_type,
+                        status_event.data,
+                    )
+                    .await?;
+                }
+            }
+            if let Some(message) = event.error {
+                return Err(crate::ErrorKind::OtherError(format!(
+                    "LogAgent analysis failed: {message}"
+                ))
+                .into());
+            }
+            if event.done {
+                return Ok(output);
+            }
+        }
+    }
+
+    // A stream that ended without `event: done` is acceptable as long as text
+    // was produced; otherwise it is a protocol error worth surfacing.
+    if output.is_empty() {
+        return Err(crate::ErrorKind::OtherError(
+            "LogAgent analysis ended without output".to_string(),
+        )
+        .into());
+    }
+    Ok(output)
+}
+
+struct ParsedEvent {
+    content: Option<String>,
+    status_event: Option<ParsedStatusEvent>,
+    done: bool,
+    error: Option<String>,
+}
+
+struct ParsedStatusEvent {
+    event_type: String,
+    data: Value,
+}
+
+struct SseParser {
+    buffer: Vec<u8>,
+}
+
+impl SseParser {
+    fn new() -> Self {
+        Self { buffer: Vec::new() }
+    }
+
+    fn feed(&mut self, chunk: &[u8]) -> Vec<ParsedEvent> {
+        self.buffer.extend_from_slice(chunk);
+        let mut events = Vec::new();
+        loop {
+            let lf_pos = find_bytes(&self.buffer, b"\n\n");
+            let crlf_pos = find_bytes(&self.buffer, b"\r\n\r\n");
+            let (pos, separator_len) = match (lf_pos, crlf_pos) {
+                (Some(lf_pos), Some(crlf_pos)) if crlf_pos < lf_pos => {
+                    (crlf_pos, 4)
+                }
+                (Some(lf_pos), _) => (lf_pos, 2),
+                (None, Some(crlf_pos)) => (crlf_pos, 4),
+                (None, None) => break,
+            };
+            let block =
+                String::from_utf8_lossy(&self.buffer[..pos]).into_owned();
+            self.buffer.drain(..pos + separator_len);
+            if let Some(event) = parse_sse_block(&block) {
+                events.push(event);
+            }
+        }
+        events
+    }
+}
+
+fn find_bytes(haystack: &[u8], needle: &[u8]) -> Option<usize> {
+    haystack.windows(needle.len()).position(|w| w == needle)
+}
+
+fn parse_sse_block(block: &str) -> Option<ParsedEvent> {
+    let mut event_name: Option<String> = None;
+    let mut data_lines = Vec::new();
+
+    for line in block.lines() {
+        if let Some(rest) = line.strip_prefix("event:") {
+            event_name = Some(rest.trim().to_string());
+        } else if let Some(rest) = line.strip_prefix("data:") {
+            data_lines.push(rest.trim_start().to_string());
+        }
+    }
+    if event_name.is_none() && data_lines.is_empty() {
+        return None;
+    }
+
+    let data_text = data_lines.join("\n");
+    let event_name = event_name.as_deref().unwrap_or("message");
+
+    match event_name {
+        "done" => Some(ParsedEvent {
+            content: None,
+            status_event: None,
+            done: true,
+            error: None,
+        }),
+        "error" => Some(ParsedEvent {
+            content: None,
+            status_event: None,
+            done: false,
+            error: Some(
+                serde_json::from_str::<Value>(&data_text)
+                    .ok()
+                    .and_then(|value| {
+                        value
+                            .get("error")
+                            .and_then(Value::as_str)
+                            .map(str::to_string)
+                    })
+                    .unwrap_or_else(|| data_text.clone()),
+            ),
+        }),
+        "status" => {
+            let Ok(value) = serde_json::from_str::<Value>(&data_text) else {
+                return None;
+            };
+            let event_type = value
+                .get("type")
+                .and_then(Value::as_str)
+                .unwrap_or("status")
+                .to_string();
+            Some(ParsedEvent {
+                content: None,
+                status_event: Some(ParsedStatusEvent {
+                    event_type,
+                    data: value,
+                }),
+                done: false,
+                error: None,
+            })
+        }
+        _ => {
+            let Ok(value) = serde_json::from_str::<Value>(&data_text) else {
+                return None;
+            };
+            let content = value
+                .pointer("/choices/0/delta/content")
+                .and_then(Value::as_str)
+                .map(str::to_string);
+            Some(ParsedEvent {
+                content,
+                status_event: None,
+                done: false,
+                error: None,
+            })
+        }
+    }
+}

packages/app-lib/src/api/pack/import/axolotl.rs

@@ -157,6 +157,7 @@ pub(crate) async fn import_axolotl(
                 ),
                 maximize_window: Some(config.launch_overrides.maximize_window),
                 game_resolution: Some(config.launch_overrides.game_resolution),
+                window_title: None,
                 launch_preparation_timeout: Some(
                     config.launch_overrides.launch_preparation_timeout,
                 ),

packages/app-lib/src/event/emit.rs

@@ -6,8 +6,9 @@ use crate::event::{
 };
 #[cfg(feature = "tauri")]
 use crate::event::{
-    InstancePayload, JavaDiscoveryPayload, JavaDownloadConfirmationPayload,
-    LoadingPayload, ProcessPayload, ServerPayload, WarningPayload,
+    InstanceGroupsChangedPayload, InstancePayload, JavaDiscoveryPayload,
+    JavaDownloadConfirmationPayload, LoadingPayload, ProcessPayload,
+    ServerPayload, WarningPayload,
 };
 use futures::prelude::*;
 use serde_json::Value;
@@ -400,6 +401,7 @@ pub async fn emit_process(
     uuid: Uuid,
     pid: u32,
     maximize_window: bool,
+    window_title: Option<String>,
     event: ProcessPayloadType,
     message: &str,
     crashed: Option<bool>,
@@ -416,6 +418,7 @@ pub async fn emit_process(
                     uuid,
                     pid,
                     maximize_window,
+                    window_title,
                     event,
                     message: message.to_string(),
                     crashed,
@@ -486,6 +489,26 @@ pub async fn emit_friend(payload: FriendPayload) -> crate::Result<()> {
     Ok(())
 }
 
+#[allow(unused_variables)]
+pub async fn emit_instance_groups_changed(
+    instance_ids: &[String],
+) -> crate::Result<()> {
+    #[cfg(feature = "tauri")]
+    {
+        let event_state = crate::EventState::get()?;
+        event_state
+            .app
+            .emit(
+                "instance_groups_changed",
+                InstanceGroupsChangedPayload {
+                    instance_ids: instance_ids.to_vec(),
+                },
+            )
+            .map_err(EventError::from)?;
+    }
+    Ok(())
+}
+
 #[allow(unused_variables)]
 pub async fn emit_notification(payload: Value) -> crate::Result<()> {
     #[cfg(feature = "tauri")]
@@ -589,3 +612,25 @@ where
         })
         .await
 }
+pub async fn emit_logshare_ai_event(
+    instance_id: &str,
+    event_type: &str,
+    data: Value,
+) -> crate::Result<()> {
+    #[cfg(feature = "tauri")]
+    {
+        let event_state = crate::EventState::get()?;
+        event_state
+            .app
+            .emit(
+                "logshare_ai",
+                crate::event::LogShareAiEventPayload {
+                    instance_id: instance_id.to_string(),
+                    event_type: event_type.to_string(),
+                    data,
+                },
+            )
+            .map_err(EventError::from)?;
+    }
+    Ok(())
+}

packages/app-lib/src/event/mod.rs

@@ -336,6 +336,8 @@ pub struct ProcessPayload {
     pub uuid: Uuid,
     pub pid: u32,
     pub maximize_window: bool,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub window_title: Option<String>,
     pub event: ProcessPayloadType,
     pub message: String,
     #[serde(skip_serializing_if = "Option::is_none")]
@@ -393,6 +395,10 @@ pub enum ServerPayloadType {
         eula_text: String,
     },
 }
+#[derive(Serialize, Clone)]
+pub struct InstanceGroupsChangedPayload {
+    pub instance_ids: Vec<String>,
+}
 
 #[derive(Serialize, Clone)]
 #[cfg(feature = "tauri")]
@@ -466,6 +472,14 @@ mod log_types {
         #[serde(flatten)]
         pub event: LogEvent,
     }
+
+    #[derive(Serialize, Clone)]
+    #[serde(rename_all = "snake_case")]
+    pub struct LogShareAiEventPayload {
+        pub instance_id: String,
+        pub event_type: String,
+        pub data: serde_json::Value,
+    }
 }
 
 #[derive(Debug, thiserror::Error)]

packages/app-lib/src/install/diagnostics.rs

@@ -670,7 +670,7 @@ fn read_file_tail(path: &Path, max_bytes: u64) -> crate::Result<String> {
     Ok(output)
 }
 
-async fn censor_support_text(
+pub(crate) async fn censor_support_text(
     mut text: String,
     state: &State,
 ) -> crate::Result<String> {

packages/app-lib/src/install/mod.rs

@@ -41,3 +41,12 @@ pub use runner::{
     retry_job, retry_job_as_new, skip_missing_content_and_resume_job,
     update_managed_curseforge_modpack, upgrade_unmanaged_instance,
 };
+
+/// Replaces credentials and IP addresses in text the user may share publicly
+/// (support reports, exported logs) with placeholders.
+pub async fn censor_shared_text(
+    text: String,
+    state: &crate::State,
+) -> crate::Result<String> {
+    diagnostics::censor_support_text(text, state).await
+}

packages/app-lib/src/launcher/download.rs

@@ -1947,9 +1947,9 @@ pub async fn download_assets(
     // failures. Runs concurrently (same budget as the original scheduler) so
     // import flows are not serialised.
     if !fallback_assets.is_empty() {
-        let limit = crate::util::download::task_concurrency_limit(st)
-            .map(|limit| limit.saturating_mul(2))
-            .unwrap_or(ASSET_BATCH_CONCURRENCY);
+        let limit =
+            crate::util::download::single_authority_task_concurrency_limit(st)
+                .unwrap_or(ASSET_BATCH_CONCURRENCY);
         futures::stream::iter(fallback_assets)
             .map(Ok::<FallbackAsset, crate::Error>)
             .try_for_each_concurrent(limit, |item| {
@@ -2123,7 +2123,7 @@ pub async fn download_libraries(
     let num_files = tasks.len();
     loading_try_for_each_concurrent(
 		stream::iter(tasks).map(Ok::<LibraryDownloadTask<'_>, crate::Error>),
-		crate::util::download::task_concurrency_limit(&st).map(|limit| limit.saturating_mul(2)),
+		crate::util::download::task_concurrency_limit(&st),
         loading_bar,
         loading_amount,
         num_files,

packages/app-lib/src/launcher/mod.rs

@@ -1,5 +1,4 @@
 //! Logic for launching Minecraft
-use crate::api::pack::import::direct_link::direct_link_group;
 use crate::data::ModLoader;
 use crate::event::emit::{emit_instance, emit_loading, init_loading};
 use crate::event::{InstancePayloadType, LoadingBarType};
@@ -717,14 +716,6 @@ async fn promote_external_instance_link(
         &mut tx,
     )
     .await?;
-    if let Some(group) = direct_link_group(&direct.dot_minecraft) {
-        crate::state::instances::adapters::sqlite::instance_rows::replace_instance_groups(
-            &instance.id,
-            &[group],
-            &mut tx,
-        )
-        .await?;
-    }
     tx.commit().await?;
     emit_instance(&instance.id, InstancePayloadType::Edited).await?;
     Ok(())
@@ -1529,6 +1520,7 @@ pub async fn launch_minecraft(
     memory: &MemorySettings,
     resolution: &WindowSize,
     maximize_window: bool,
+    window_title: Option<String>,
     credentials: &Credentials,
     post_exit_hook: Option<String>,
     context: &InstanceLaunchContext,
@@ -2400,6 +2392,7 @@ pub async fn launch_minecraft(
             command,
             post_exit_hook,
             maximize_window,
+            window_title,
             instance_path.clone(),
             logs_folder,
             version_info.logging.is_some(),

packages/app-lib/src/lib.rs

@@ -26,8 +26,9 @@ pub use api::*;
 pub use error::*;
 pub use event::{
     EventState, LoadingBar, LoadingBarType, emit::emit_loading,
-    emit::init_loading,
+    emit::emit_logshare_ai_event, emit::init_loading,
 };
+pub use logger::filter_log_contents;
 pub use logger::start_logger;
 pub use state::db::{
     backup_current_app_db_for_update, beta_database_exists,
@@ -38,7 +39,7 @@ pub use state::{DirectoryInfo, State};
 pub use storage::*;
 pub use util::fetch::build_proxied_client;
 pub use util::file_lock::{LockingProcess, get_locking_processes};
-pub use util::platform::is_process_elevated;
+pub use util::platform::{default_game_dir_root, is_process_elevated};
 pub use util::proxy::{ProxyConfig, ProxyMode, ProxyTestResult};
 pub use util::symlink::SymlinkCapability;
 

packages/app-lib/src/logger.rs

@@ -240,6 +240,114 @@ fn launcher_log_is_expired(
     now.duration_since(created).is_ok_and(|age| age > max_age)
 }
 
+/// Ordinal for the levels the launcher writes, ordered from most to least
+/// verbose. Unknown tokens are ignored so unrecognized lines are never pruned.
+fn log_level_ordinal(token: &str) -> Option<u8> {
+    match token {
+        "TRACE" => Some(0),
+        "DEBUG" => Some(1),
+        "INFO" => Some(2),
+        "WARN" => Some(3),
+        "ERROR" => Some(4),
+        _ => None,
+    }
+}
+
+fn log_level_minimum_ordinal(level: &str) -> Option<u8> {
+    match level {
+        "trace" => Some(0),
+        "debug" => Some(1),
+        "info" => Some(2),
+        "warn" => Some(3),
+        "error" => Some(4),
+        _ => None,
+    }
+}
+
+/// How a log line relates to the surrounding entries.
+enum LogEntryHeader {
+    /// Timestamp and level parsed: the entry can be filtered.
+    Classified(chrono::DateTime<chrono::FixedOffset>, u8),
+    /// Timestamp parsed but the level is unknown: keep it rather than
+    /// dropping content this logic does not understand.
+    Unclassified,
+}
+
+/// Reads the timestamp and level of an entry line. Continuation lines of a
+/// multi-line message carry no prefix and return `None`, so callers keep them
+/// grouped with the entry they belong to.
+fn parse_log_entry_header(line: &str) -> Option<LogEntryHeader> {
+    let (timestamp, rest) = line.split_once(char::is_whitespace)?;
+    let timestamp = chrono::DateTime::parse_from_rfc3339(timestamp).ok()?;
+    let level = rest.trim_start().split_whitespace().next()?;
+    Some(match log_level_ordinal(level) {
+        Some(ordinal) => LogEntryHeader::Classified(timestamp, ordinal),
+        None => LogEntryHeader::Unclassified,
+    })
+}
+
+/// Keeps or drops whole log entries by a predicate over their timestamp and
+/// level ordinal, returning `None` when nothing was dropped.
+///
+/// Multi-line messages are kept or dropped together with their header, the
+/// bytes of kept lines are preserved exactly (no re-encoding), and entries
+/// whose level cannot be classified are always kept.
+fn filter_log_entries<F>(contents: &[u8], keep: F) -> Option<Vec<u8>>
+where
+    F: Fn(chrono::DateTime<chrono::FixedOffset>, u8) -> bool,
+{
+    let mut kept = Vec::with_capacity(contents.len());
+    let mut changed = false;
+    let mut keep_entry = true;
+
+    for line in contents.split_inclusive(|byte| *byte == b'\n') {
+        match parse_log_entry_header(&String::from_utf8_lossy(line)) {
+            Some(LogEntryHeader::Classified(timestamp, ordinal)) => {
+                keep_entry = keep(timestamp, ordinal);
+            }
+            Some(LogEntryHeader::Unclassified) => keep_entry = true,
+            // Continuation line: it follows the decision of its entry.
+            None => {}
+        }
+
+        if keep_entry {
+            kept.extend_from_slice(line);
+        } else {
+            changed = true;
+        }
+    }
+
+    changed.then_some(kept)
+}
+
+/// Filters launcher log bytes for an export: entries older than `max_age` and
+/// entries below `min_level` are removed. Pass `None` for either bound to keep
+/// everything on that axis. Multi-line messages stay intact.
+pub fn filter_log_contents(
+    contents: &[u8],
+    max_age: Option<std::time::Duration>,
+    min_level: Option<&str>,
+) -> Vec<u8> {
+    let now = chrono::Local::now().fixed_offset();
+    let minimum = min_level.and_then(log_level_minimum_ordinal);
+
+    filter_log_entries(contents, |timestamp, ordinal| {
+        if let Some(minimum) = minimum
+            && ordinal < minimum
+        {
+            return false;
+        }
+        if let Some(max_age) = max_age {
+            let age = (now - timestamp).to_std().unwrap_or_default();
+            if age > max_age {
+                return false;
+            }
+        }
+        true
+    })
+    .unwrap_or_else(|| contents.to_vec())
+}
+
 struct LogEventWriter {
     writer: RotatingLogWriter,
     buffer: Vec<u8>,

packages/app-lib/src/state/instance_groups.rs

@@ -0,0 +1,613 @@
+//! Instance grouping backed by a standalone JSON file in the app's settings
+//! directory, next to `settings.json`.
+//!
+//! Groups used to live in SQLite (`instance_groups` /
+//! `instance_group_memberships`). That layout could not express membership for
+//! JSON-backed instances (`local:` ids, i.e. every `.minecraft` and
+//! multi-library instance) because they have no row in the `instances` table,
+//! and it duplicated membership into the per-instance sidecars. This module is
+//! the single source of truth instead; the SQL tables are left untouched but
+//! are no longer read or written (they are only read once, at import time).
+
+use crate::state::State;
+use serde::{Deserialize, Serialize};
+use std::collections::{HashMap, HashSet};
+use std::fs;
+use std::path::PathBuf;
+use std::sync::{OnceLock, RwLock};
+use tracing::{info, warn};
+
+pub const INSTANCE_GROUPS_FILE_NAME: &str = "instance_groups.json";
+
+/// Current `instance_groups.json` schema version.
+pub const INSTANCE_GROUPS_SCHEMA_VERSION: u32 = 1;
+
+pub const FAVORITES_GROUP_ID: &str = "group:favorites";
+const FAVORITES_GROUP_NAME: &str = "Pinned";
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub struct GroupDefinition {
+    pub id: String,
+    pub name: String,
+}
+
+/// On-disk shape. The order of `groups` *is* the display order, so no
+/// `display_order` field is needed: the public API only ever communicates
+/// ordering through the order of `list()` and `set_order()`.
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub struct InstanceGroupsFile {
+    #[serde(default)]
+    pub schema_version: u32,
+    #[serde(default)]
+    pub groups: Vec<GroupDefinition>,
+    /// instance id -> group ids.
+    #[serde(default)]
+    pub memberships: HashMap<String, Vec<String>>,
+}
+
+impl Default for InstanceGroupsFile {
+    fn default() -> Self {
+        Self {
+            schema_version: INSTANCE_GROUPS_SCHEMA_VERSION,
+            groups: vec![GroupDefinition {
+                id: FAVORITES_GROUP_ID.to_string(),
+                name: FAVORITES_GROUP_NAME.to_string(),
+            }],
+            memberships: HashMap::new(),
+        }
+    }
+}
+
+impl InstanceGroupsFile {
+    fn has_group(&self, id: &str) -> bool {
+        self.groups.iter().any(|group| group.id == id)
+    }
+
+    /// Guarantees the favorites sentinel exists and sits first, drops
+    /// memberships pointing at groups that no longer exist, and drops instances
+    /// left with no groups at all.
+    fn normalize(&mut self) {
+        self.schema_version = INSTANCE_GROUPS_SCHEMA_VERSION;
+
+        match self.groups.iter().position(|g| g.id == FAVORITES_GROUP_ID) {
+            Some(0) => {}
+            Some(index) => {
+                let favorites = self.groups.remove(index);
+                self.groups.insert(0, favorites);
+            }
+            None => self.groups.insert(
+                0,
+                GroupDefinition {
+                    id: FAVORITES_GROUP_ID.to_string(),
+                    name: FAVORITES_GROUP_NAME.to_string(),
+                },
+            ),
+        }
+
+        let known = self
+            .groups
+            .iter()
+            .map(|group| group.id.clone())
+            .collect::<HashSet<_>>();
+
+        for group_ids in self.memberships.values_mut() {
+            let mut seen = HashSet::new();
+            group_ids
+                .retain(|id| known.contains(id) && seen.insert(id.clone()));
+        }
+        self.memberships
+            .retain(|_, group_ids| !group_ids.is_empty());
+    }
+}
+
+static STORE: OnceLock<RwLock<InstanceGroupsFile>> = OnceLock::new();
+
+fn file_path() -> Option<PathBuf> {
+    let state = State::get_if_initialized()?;
+    Some(
+        state
+            .directories
+            .settings_dir
+            .join(INSTANCE_GROUPS_FILE_NAME),
+    )
+}
+
+/// Reads the store from disk, or `None` when it has never been written.
+fn read_from_disk() -> Option<InstanceGroupsFile> {
+    let path = file_path()?;
+    if !path.exists() {
+        return None;
+    }
+    match fs::read_to_string(&path)
+        .map_err(|e| e.to_string())
+        .and_then(|content| {
+            serde_json::from_str::<InstanceGroupsFile>(&content)
+                .map_err(|e| e.to_string())
+        }) {
+        Ok(mut file) => {
+            file.normalize();
+            Some(file)
+        }
+        Err(error) => {
+            // A corrupt file must not wipe the user's groups silently on the
+            // next write, so bail out to an empty store without touching disk.
+            warn!("Failed to read {INSTANCE_GROUPS_FILE_NAME}: {error}");
+            None
+        }
+    }
+}
+
+fn write_to_disk(file: &InstanceGroupsFile) {
+    let Some(path) = file_path() else {
+        return;
+    };
+    let write = serde_json::to_string_pretty(file)
+        .map_err(|e| e.to_string())
+        .and_then(|content| {
+            fs::write(&path, content).map_err(|e| e.to_string())
+        });
+    if let Err(error) = write {
+        warn!("Failed to save {INSTANCE_GROUPS_FILE_NAME}: {error}");
+    }
+}
+
+fn store() -> &'static RwLock<InstanceGroupsFile> {
+    STORE.get_or_init(|| RwLock::new(read_from_disk().unwrap_or_default()))
+}
+
+fn with_read<T>(f: impl FnOnce(&InstanceGroupsFile) -> T) -> T {
+    let guard = store().read().unwrap_or_else(|e| e.into_inner());
+    f(&guard)
+}
+
+/// Mutates the store and persists the whole file. `f` returns the instance ids
+/// whose membership changed, so callers can emit the change event.
+fn with_write<T>(f: impl FnOnce(&mut InstanceGroupsFile) -> T) -> T {
+    let mut guard = store().write().unwrap_or_else(|e| e.into_inner());
+    let result = f(&mut guard);
+    guard.normalize();
+    write_to_disk(&guard);
+    result
+}
+
+// ── Reads ───────────────────────────────────────────────────────────────────
+
+pub fn list() -> Vec<GroupDefinition> {
+    with_read(|file| file.groups.clone())
+}
+
+pub fn group_exists(id: &str) -> bool {
+    with_read(|file| file.has_group(id))
+}
+
+/// Group ids for one instance, in the order they were assigned. Synchronous so
+/// that `instance_metadata_from_instance` can call it.
+pub fn group_ids_for(instance_id: &str) -> Vec<String> {
+    with_read(|file| {
+        file.memberships
+            .get(instance_id)
+            .cloned()
+            .unwrap_or_default()
+    })
+}
+
+fn instances_in_group(
+    file: &InstanceGroupsFile,
+    group_id: &str,
+) -> Vec<String> {
+    file.memberships
+        .iter()
+        .filter(|(_, group_ids)| group_ids.iter().any(|id| id == group_id))
+        .map(|(instance_id, _)| instance_id.clone())
+        .collect()
+}
+
+// ── Writes ──────────────────────────────────────────────────────────────────
+
+/// Adds a group at the top of the list, matching the previous SQL behavior
+/// where new groups got the lowest `display_order`. Favorites stays first.
+pub fn create(id: &str, name: &str) {
+    with_write(|file| {
+        let definition = GroupDefinition {
+            id: id.to_string(),
+            name: name.to_string(),
+        };
+        // `normalize` moves favorites back to index 0 afterwards.
+        file.groups.insert(0, definition);
+    });
+}
+
+/// Renames a group, returning the affected instance ids, or `None` when the
+/// group does not exist.
+pub fn rename(id: &str, name: &str) -> Option<Vec<String>> {
+    with_write(|file| {
+        let group = file.groups.iter_mut().find(|group| group.id == id)?;
+        group.name = name.to_string();
+        Some(instances_in_group(file, id))
+    })
+}
+
+/// Deletes a group and strips it from every instance, returning the affected
+/// instance ids, or `None` when the group does not exist.
+pub fn delete(id: &str) -> Option<Vec<String>> {
+    with_write(|file| {
+        let index = file.groups.iter().position(|group| group.id == id)?;
+        let affected = instances_in_group(file, id);
+        file.groups.remove(index);
+        // `normalize` prunes the now-dangling ids out of `memberships`.
+        Some(affected)
+    })
+}
+
+/// Reorders groups to match `group_ids`. Groups missing from the argument keep
+/// their relative order at the end, so a stale frontend list can never drop a
+/// group. Favorites is pinned first regardless.
+pub fn set_order(group_ids: &[String]) {
+    with_write(|file| reorder_groups(&mut file.groups, group_ids));
+}
+
+/// Reorders `groups` to match `group_ids`. Groups the argument omits keep their
+/// relative order after the listed ones, so a stale frontend list can never drop
+/// a group. Pure so the ordering rules can be tested without the process-wide
+/// store, which tests would otherwise race over.
+fn reorder_groups(groups: &mut Vec<GroupDefinition>, group_ids: &[String]) {
+    let mut remaining = std::mem::take(groups);
+    let mut ordered = Vec::with_capacity(remaining.len());
+    for id in group_ids {
+        if id == FAVORITES_GROUP_ID {
+            continue;
+        }
+        if let Some(index) = remaining.iter().position(|group| &group.id == id)
+        {
+            ordered.push(remaining.remove(index));
+        }
+    }
+    ordered.extend(remaining);
+    *groups = ordered;
+}
+
+/// Replaces the group list of each given instance wholesale.
+pub fn set_memberships(updates: &[(String, Vec<String>)]) {
+    with_write(|file| {
+        for (instance_id, group_ids) in updates {
+            if group_ids.is_empty() {
+                file.memberships.remove(instance_id);
+            } else {
+                file.memberships
+                    .insert(instance_id.clone(), group_ids.clone());
+            }
+        }
+    });
+}
+
+/// Replaces the group list of a single instance.
+pub fn set_instance_groups(instance_id: &str, group_ids: &[String]) {
+    set_memberships(&[(instance_id.to_string(), group_ids.to_vec())]);
+}
+
+/// Looks a group up by name, creating it if absent, and returns its id.
+/// Used by the legacy launcher import, which only knows group names.
+pub fn find_or_create_by_name(name: &str) -> String {
+    with_write(|file| {
+        if let Some(group) = file.groups.iter().find(|group| group.name == name)
+        {
+            return group.id.clone();
+        }
+        let id = uuid::Uuid::new_v4().to_string();
+        file.groups.push(GroupDefinition {
+            id: id.clone(),
+            name: name.to_string(),
+        });
+        id
+    })
+}
+
+/// Adds one group to an instance, keeping its existing groups.
+pub fn add_instance_to_group(instance_id: &str, group_id: &str) {
+    with_write(|file| {
+        let entry =
+            file.memberships.entry(instance_id.to_string()).or_default();
+        if !entry.iter().any(|id| id == group_id) {
+            entry.push(group_id.to_string());
+        }
+    });
+}
+
+/// Drops an instance's membership entry, e.g. after the instance is deleted.
+pub fn forget_instance(instance_id: &str) {
+    with_write(|file| {
+        file.memberships.remove(instance_id);
+    });
+}
+
+/// Re-keys an instance's membership, e.g. when a `local:` id changes because the
+/// instance directory moved.
+pub fn rename_instance(old_id: &str, new_id: &str) {
+    if old_id == new_id {
+        return;
+    }
+    with_write(|file| {
+        if let Some(group_ids) = file.memberships.remove(old_id) {
+            file.memberships.insert(new_id.to_string(), group_ids);
+        }
+    });
+}
+
+// ── One-time import ─────────────────────────────────────────────────────────
+
+async fn import_sql_groups(
+    pool: &sqlx::SqlitePool,
+) -> crate::Result<InstanceGroupsFile> {
+    let columns: Vec<String> = sqlx::query_scalar(
+        "SELECT name FROM pragma_table_info('instance_groups')",
+    )
+    .fetch_all(pool)
+    .await?;
+    let has_column = |name: &str| columns.iter().any(|column| column == name);
+
+    let mut file = InstanceGroupsFile {
+        schema_version: INSTANCE_GROUPS_SCHEMA_VERSION,
+        groups: Vec::new(),
+        memberships: HashMap::new(),
+    };
+
+    if has_column("id") && has_column("name") {
+        let rows = sqlx::query_as::<_, (String, String)>(
+            "SELECT id, name FROM instance_groups ORDER BY display_order, name, id",
+        )
+        .fetch_all(pool)
+        .await?;
+        for (id, name) in rows {
+            file.groups.push(GroupDefinition { id, name });
+        }
+
+        let has_memberships: bool = sqlx::query_scalar(
+            "SELECT EXISTS(
+                SELECT 1 FROM sqlite_master
+                WHERE type = 'table' AND name = 'instance_group_memberships'
+            )",
+        )
+        .fetch_one(pool)
+        .await?;
+        if has_memberships {
+            let memberships = sqlx::query_as::<_, (String, String)>(
+                "SELECT instance_id, group_id FROM instance_group_memberships",
+            )
+            .fetch_all(pool)
+            .await?;
+            for (instance_id, group_id) in memberships {
+                file.memberships
+                    .entry(instance_id)
+                    .or_default()
+                    .push(group_id);
+            }
+        }
+    } else if has_column("instance_id") && has_column("group_name") {
+        let rows = sqlx::query_as::<_, (String, String)>(
+            "SELECT instance_id, group_name
+             FROM instance_groups
+             ORDER BY group_name, instance_id",
+        )
+        .fetch_all(pool)
+        .await?;
+        let mut group_ids = HashMap::<String, String>::new();
+        for (instance_id, group_name) in rows {
+            let group_id = group_ids
+                .entry(group_name.clone())
+                .or_insert_with(|| uuid::Uuid::new_v4().to_string())
+                .clone();
+            file.memberships
+                .entry(instance_id)
+                .or_default()
+                .push(group_id.clone());
+            if !file.groups.iter().any(|group| group.id == group_id) {
+                file.groups.push(GroupDefinition {
+                    id: group_id,
+                    name: group_name,
+                });
+            }
+        }
+    } else if !columns.is_empty() {
+        warn!(
+            columns = ?columns,
+            "Skipping instance group import from an unrecognized SQLite schema"
+        );
+    }
+
+    file.normalize();
+    Ok(file)
+}
+
+/// Creates `instance_groups.json` from the pre-existing SQLite tables and
+/// instance sidecars, the first time the app runs after this change.
+///
+/// The SQL access here is read-only and happens exactly once; afterwards the
+/// tables are never touched again (they are kept as-is so no DB migration is
+/// needed).
+pub async fn ensure_imported(state: &State) -> crate::Result<()> {
+    let Some(path) = file_path() else {
+        return Ok(());
+    };
+    if path.exists() {
+        // Populate the in-memory cache eagerly so the first synchronous read
+        // does not race with a write.
+        let _ = list();
+        return Ok(());
+    }
+
+    let file = import_sql_groups(&state.pool).await?;
+    let group_count = file.groups.len();
+    let instance_count = file.memberships.len();
+
+    // Seed the cache with the imported data instead of letting `store()` read
+    // the file we are about to write.
+    {
+        let lock = store();
+        let mut guard = lock.write().unwrap_or_else(|e| e.into_inner());
+        *guard = file;
+        write_to_disk(&guard);
+    }
+
+    info!(
+        "Imported {group_count} instance groups covering {instance_count} instances into {INSTANCE_GROUPS_FILE_NAME}"
+    );
+
+    Ok(())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use sqlx::sqlite::SqlitePoolOptions;
+
+    fn file_with_groups(ids: &[&str]) -> InstanceGroupsFile {
+        InstanceGroupsFile {
+            schema_version: INSTANCE_GROUPS_SCHEMA_VERSION,
+            groups: ids
+                .iter()
+                .map(|id| GroupDefinition {
+                    id: id.to_string(),
+                    name: id.to_string(),
+                })
+                .collect(),
+            memberships: HashMap::new(),
+        }
+    }
+
+    #[test]
+    fn normalize_inserts_favorites_first() {
+        let mut file = file_with_groups(&["a", "b"]);
+        file.normalize();
+        assert_eq!(file.groups[0].id, FAVORITES_GROUP_ID);
+        assert_eq!(file.groups.len(), 3);
+    }
+
+    #[test]
+    fn normalize_moves_favorites_to_front() {
+        let mut file = file_with_groups(&["a", FAVORITES_GROUP_ID, "b"]);
+        file.normalize();
+        assert_eq!(file.groups[0].id, FAVORITES_GROUP_ID);
+        assert_eq!(file.groups[1].id, "a");
+        assert_eq!(file.groups[2].id, "b");
+    }
+
+    #[test]
+    fn normalize_drops_orphan_memberships() {
+        let mut file = file_with_groups(&["a"]);
+        file.memberships.insert(
+            "instance".to_string(),
+            vec!["a".to_string(), "nonexistent".to_string()],
+        );
+
+        file.normalize();
+        assert_eq!(file.memberships["instance"], &["a"]);
+    }
+
+    #[test]
+    fn normalize_drops_memberships_for_nonexistent_instances() {
+        let mut file = file_with_groups(&["a"]);
+        file.memberships.insert(
+            "instance".to_string(),
+            vec!["nonexistent1".to_string(), "nonexistent2".to_string()],
+        );
+        file.normalize();
+        assert!(!file.memberships.contains_key("instance"));
+    }
+
+    fn group_ids(groups: &[GroupDefinition]) -> Vec<String> {
+        groups.iter().map(|group| group.id.clone()).collect()
+    }
+
+    #[test]
+    fn set_order_ignores_unknown_ids() {
+        let mut groups = file_with_groups(&["a", "b", "c"]).groups;
+
+        reorder_groups(&mut groups, &["unknown".to_string(), "c".to_string()]);
+
+        // The unknown id matches nothing and simply contributes no group.
+        assert_eq!(group_ids(&groups), vec!["c", "a", "b"]);
+    }
+
+    #[test]
+    fn set_order_retains_missing_groups_at_end() {
+        let mut groups = file_with_groups(&["a", "b", "c"]).groups;
+        groups.push(GroupDefinition {
+            id: "extra".to_string(),
+            name: "extra".to_string(),
+        });
+
+        reorder_groups(&mut groups, &["b".to_string()]);
+
+        // `b` moves to the front and every group the argument omitted survives
+        // after it, so a stale list can never drop a group. Favorites is pinned
+        // by `normalize`, which the store applies around this call.
+        assert_eq!(group_ids(&groups), vec!["b", "a", "c", "extra"]);
+    }
+
+    #[test]
+    fn set_order_keeps_favorites_out_of_the_reorder() {
+        let mut groups = file_with_groups(&["a", FAVORITES_GROUP_ID]).groups;
+
+        reorder_groups(&mut groups, &[FAVORITES_GROUP_ID.to_string()]);
+
+        // Favorites is skipped explicitly and survives at its previous position;
+        // `normalize` moves it to the front afterwards.
+        assert_eq!(group_ids(&groups), vec!["a", FAVORITES_GROUP_ID]);
+    }
+
+    #[test]
+    fn normalize_does_not_lose_favorites_membership() {
+        let mut file = file_with_groups(&[]);
+        file.memberships.insert(
+            "my_instance".to_string(),
+            vec![FAVORITES_GROUP_ID.to_string()],
+        );
+        file.normalize();
+        assert_eq!(file.memberships["my_instance"], &[FAVORITES_GROUP_ID]);
+    }
+
+    #[test]
+    fn normalize_deduplicates_group_ids() {
+        let mut file = file_with_groups(&["a", "b"]);
+        file.memberships.insert(
+            "instance".to_string(),
+            vec!["a".to_string(), "a".to_string(), "b".to_string()],
+        );
+        file.normalize();
+        assert_eq!(file.memberships["instance"].len(), 2);
+    }
+
+    #[tokio::test]
+    async fn imports_legacy_instance_group_schema() {
+        let pool = SqlitePoolOptions::new()
+            .connect("sqlite::memory:")
+            .await
+            .unwrap();
+        sqlx::query(
+            "CREATE TABLE instance_groups (
+                instance_id TEXT NOT NULL,
+                group_name TEXT NOT NULL,
+                PRIMARY KEY (instance_id, group_name)
+            )",
+        )
+        .execute(&pool)
+        .await
+        .unwrap();
+        sqlx::query(
+            "INSERT INTO instance_groups (instance_id, group_name)
+             VALUES ('instance-1', 'Survival'), ('instance-2', 'Survival'),
+                    ('instance-1', 'Creative')",
+        )
+        .execute(&pool)
+        .await
+        .unwrap();
+
+        let file = import_sql_groups(&pool).await.unwrap();
+
+        assert_eq!(file.groups.len(), 3);
+        assert_eq!(file.groups[0].id, FAVORITES_GROUP_ID);
+        assert_eq!(file.memberships["instance-1"].len(), 2);
+        assert_eq!(file.memberships["instance-2"].len(), 1);
+        assert!(file.groups.iter().any(|group| group.name == "Survival"));
+    }
+}

packages/app-lib/src/state/instances/commands/create_direct_link_instance.rs

@@ -1,6 +1,5 @@
 use crate::api::pack::import::{
-    ImportLauncherType,
-    direct_link::{direct_link_group, resolve_direct_link},
+    ImportLauncherType, direct_link::resolve_direct_link,
 };
 use crate::launcher::ExternalGameDirMode;
 use crate::state::instances::{
@@ -156,11 +155,6 @@ pub(crate) async fn create_direct_link_instance(
         &mut tx,
     )
     .await?;
-    let groups = direct_link_group(&resolved.dot_minecraft)
-        .into_iter()
-        .collect::<Vec<_>>();
-    instance_rows::replace_instance_groups(&instance_id, &groups, &mut tx)
-        .await?;
     instance_rows::upsert_instance_launch_overrides(&launch_overrides, &mut tx)
         .await?;
     tx.commit().await?;

packages/app-lib/src/state/instances/commands/edit_instance.rs

@@ -103,6 +103,12 @@ pub struct InstanceLaunchOverridesPatch {
         skip_serializing_if = "Option::is_none",
         with = "serde_with::rust::double_option"
     )]
+    pub window_title: Option<Option<String>>,
+    #[serde(
+        default,
+        skip_serializing_if = "Option::is_none",
+        with = "serde_with::rust::double_option"
+    )]
     pub launch_preparation_timeout: Option<Option<u64>>,
     pub hooks: Option<Hooks>,
 }
@@ -371,6 +377,10 @@ fn apply_launch_overrides_patch(
     if let Some(game_resolution) = patch.game_resolution {
         overrides.game_resolution = game_resolution;
     }
+    if let Some(window_title) = patch.window_title {
+        overrides.window_title =
+            window_title.filter(|value| !value.trim().is_empty());
+    }
     if let Some(mode) = patch.instance_mode {
         overrides.instance_mode = Some(mode);
     }

packages/app-lib/src/state/instances/commands/get_instance.rs

@@ -1,3 +1,4 @@
+use crate::state::instance_groups;
 use crate::state::instances::{
     ContentSet, Instance, InstanceLaunchOverrides, InstanceLink,
     LoaderComponent,
@@ -91,11 +92,12 @@ impl InstanceMetadata {
         record: instance_rows::InstanceMetadataRecord,
         loader_components: Vec<LoaderComponent>,
     ) -> Self {
+        let groups = instance_groups::group_ids_for(&record.instance.id);
         Self {
             instance: record.instance,
             applied_content_set: record.applied_content_set,
             link: record.link,
-            groups: record.groups,
+            groups,
             launch_overrides: record.launch_overrides,
             loader_components,
             synced_options: Default::default(),

packages/app-lib/src/state/instances/commands/sync_direct_link_instances.rs

@@ -1,7 +1,7 @@
 use super::create_direct_link_instance::create_direct_link_instance;
 use crate::api::pack::import::direct_link::{
-    detect_direct_link_source, direct_link_group,
-    has_minecraft_version_manifest, resolve_direct_link,
+    detect_direct_link_source, has_minecraft_version_manifest,
+    resolve_direct_link,
 };
 use crate::event::{InstancePayloadType, emit::emit_instance};
 use crate::launcher::ExternalGameDirMode;
@@ -163,11 +163,7 @@ pub(crate) async fn sync_direct_link_instances(
                 let content_changed = metadata.applied_content_set.game_version
                     != resolved.game_version
                     || metadata.applied_content_set.loader != resolved.loader;
-                let groups = direct_link_group(&resolved.dot_minecraft)
-                    .into_iter()
-                    .collect::<Vec<_>>();
-                let groups_changed = metadata.groups != groups;
-                if fields_changed || content_changed || groups_changed {
+                if fields_changed || content_changed {
                     if content_changed {
                         crate::state::edit_instance(
                             &instance.id,
@@ -216,12 +212,6 @@ pub(crate) async fn sync_direct_link_instances(
                         &mut tx,
                     )
                     .await?;
-                    instance_rows::replace_instance_groups(
-                        &instance.id,
-                        &groups,
-                        &mut tx,
-                    )
-                    .await?;
                     tx.commit().await?;
                     let _ = emit_instance(
                         &instance.id,

packages/app-lib/src/state/instances/model/launch.rs

@@ -38,6 +38,8 @@ pub struct InstanceLaunchOverrides {
     pub maximize_window: Option<bool>,
     pub game_resolution: Option<WindowSize>,
     #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub window_title: Option<String>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
     pub launch_preparation_timeout: Option<u64>,
     pub hooks: Hooks,
 }
@@ -55,6 +57,7 @@ impl InstanceLaunchOverrides {
             force_fullscreen: None,
             maximize_window: None,
             game_resolution: None,
+            window_title: None,
             launch_preparation_timeout: None,
             hooks: Hooks {
                 pre_launch: None,
@@ -86,6 +89,8 @@ pub(crate) struct InstanceLaunchOverridesData {
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub game_resolution: Option<WindowSize>,
     #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub window_title: Option<String>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
     pub launch_preparation_timeout: Option<u64>,
     #[serde(default)]
     pub hooks: Hooks,
@@ -107,6 +112,7 @@ impl InstanceLaunchOverridesData {
             force_fullscreen: self.force_fullscreen,
             maximize_window: self.maximize_window,
             game_resolution: self.game_resolution,
+            window_title: self.window_title,
             launch_preparation_timeout: self.launch_preparation_timeout,
             hooks: self.hooks,
         }
@@ -125,6 +131,7 @@ impl From<&InstanceLaunchOverrides> for InstanceLaunchOverridesData {
             force_fullscreen: overrides.force_fullscreen,
             maximize_window: overrides.maximize_window,
             game_resolution: overrides.game_resolution,
+            window_title: overrides.window_title.clone(),
             launch_preparation_timeout: overrides.launch_preparation_timeout,
             hooks: overrides.hooks.clone(),
         }

packages/app-lib/src/state/legacy_converter.rs

@@ -621,6 +621,7 @@ where
         force_fullscreen: input.force_fullscreen,
         maximize_window: None,
         game_resolution: input.game_resolution,
+        window_title: None,
         launch_preparation_timeout: None,
         hooks: input.hooks,
     };

packages/app-lib/src/state/mod.rs

@@ -26,6 +26,7 @@ pub use self::instance_types::*;
 pub(crate) mod instances;
 pub use self::instances::*;
 
+pub(crate) mod instance_groups;
 mod settings;
 pub use self::settings::*;
 
@@ -118,6 +119,7 @@ pub struct State {
     download_sample_requests: AtomicU64,
     download_sample_errors: AtomicU64,
     download_sample_throttles: AtomicU64,
+    download_sample_queue_waits: AtomicU64,
     pub(crate) install_job_semaphore: Semaphore,
     pub(crate) install_db_semaphore: Semaphore,
     pub(crate) install_job_cancellations: DashMap<Uuid, CancellationToken>,
@@ -196,6 +198,7 @@ struct AutoConcurrencySample {
     requests: u64,
     errors: u64,
     throttles: u64,
+    queue_waits: u64,
 }
 
 /// Per-instance lock registry with task-local reentrancy.
@@ -399,6 +402,15 @@ impl AutoConcurrencyController {
         } else {
             sample.errors as f64 / sample.requests as f64
         };
+        if sample.queue_waits > 0 {
+            self.high_utilization_windows = 0;
+            self.pressure_windows = 0;
+            self.probe = None;
+            self.cooldown_until = Some(now + AUTO_DOWNLOAD_PROBE_COOLDOWN);
+            return current
+                .saturating_sub(current.div_ceil(4))
+                .max(AUTO_DOWNLOAD_CONCURRENCY_MIN);
+        }
         // A single throttled window is handled by the per-host limiter; the
         // global concurrency only backs off when pressure persists across
         // several samples, and then in small steps instead of a big cut.
@@ -476,6 +488,10 @@ impl State {
             .get_or_try_init(move || Self::initialize_state(app_identifier))
             .await?;
 
+        if let Err(e) = instance_groups::ensure_imported(state).await {
+            tracing::error!("Error importing legacy instance groups: {e}");
+        }
+
         if let Err(e) =
             crate::install::recovery::recover_interrupted_jobs(state).await
         {
@@ -677,6 +693,11 @@ impl State {
         self.download_sample_errors.fetch_add(1, Ordering::AcqRel);
     }
 
+    pub(crate) fn record_download_queue_wait(&self) {
+        self.download_sample_queue_waits
+            .fetch_add(1, Ordering::AcqRel);
+    }
+
     pub(crate) fn update_download_settings(
         self: &Arc<Self>,
         settings: &Settings,
@@ -735,6 +756,7 @@ impl State {
                 self.download_sample_requests.swap(0, Ordering::AcqRel);
                 self.download_sample_errors.swap(0, Ordering::AcqRel);
                 self.download_sample_throttles.swap(0, Ordering::AcqRel);
+                self.download_sample_queue_waits.swap(0, Ordering::AcqRel);
                 continue;
             }
             let sample = AutoConcurrencySample {
@@ -749,6 +771,9 @@ impl State {
                 throttles: self
                     .download_sample_throttles
                     .swap(0, Ordering::AcqRel),
+                queue_waits: self
+                    .download_sample_queue_waits
+                    .swap(0, Ordering::AcqRel),
             };
             let current = self.download_concurrency();
             let ceiling =
@@ -771,6 +796,7 @@ impl State {
                     requests = sample.requests,
                     errors = sample.errors,
                     throttles = sample.throttles,
+                    queue_waits = sample.queue_waits,
                     "Adjusted automatic download concurrency"
                 );
                 self.resize_download_concurrency(target);
@@ -935,6 +961,7 @@ impl State {
             download_sample_requests: AtomicU64::new(0),
             download_sample_errors: AtomicU64::new(0),
             download_sample_throttles: AtomicU64::new(0),
+            download_sample_queue_waits: AtomicU64::new(0),
             install_job_semaphore: Semaphore::new(MAX_CONCURRENT_INSTALL_JOBS),
             install_db_semaphore: Semaphore::new(1),
             install_job_cancellations: DashMap::new(),
@@ -1024,6 +1051,7 @@ pub(crate) async fn test_state(
         download_sample_requests: AtomicU64::new(0),
         download_sample_errors: AtomicU64::new(0),
         download_sample_throttles: AtomicU64::new(0),
+        download_sample_queue_waits: AtomicU64::new(0),
         install_job_semaphore: Semaphore::new(1),
         install_db_semaphore: Semaphore::new(1),
         install_job_cancellations: DashMap::new(),
@@ -1053,9 +1081,24 @@ mod auto_concurrency_tests {
             requests: 100,
             errors: 0,
             throttles: 0,
+            queue_waits: 0,
         }
     }
 
+    #[test]
+    fn queue_pressure_backs_off_immediately_and_repeatedly() {
+        let mut controller = AutoConcurrencyController::default();
+        let now = Instant::now();
+        let congested = AutoConcurrencySample {
+            queue_waits: 1,
+            ..healthy(8, 100)
+        };
+
+        assert_eq!(controller.next_target(now, 128, 128, congested), 96);
+        assert_eq!(controller.next_target(now, 96, 128, congested), 72);
+        assert_eq!(controller.next_target(now, 16, 128, congested), 16);
+    }
+
     #[test]
     fn probes_up_after_two_saturated_windows_and_respects_ceiling() {
         let mut controller = AutoConcurrencyController::default();
@@ -1130,6 +1173,7 @@ mod auto_concurrency_tests {
             requests: 100,
             errors: 5,
             throttles: 0,
+            queue_waits: 0,
         };
         assert_eq!(controller.next_target(Instant::now(), 16, 128, sample), 16);
     }

packages/app-lib/src/state/process.rs

@@ -312,6 +312,7 @@ impl ProcessManager {
         mut mc_command: Command,
         post_exit_command: Option<String>,
         maximize_window: bool,
+        window_title: Option<String>,
         game_dir: PathBuf,
         logs_folder: PathBuf,
         xml_logging: bool,
@@ -336,6 +337,7 @@ impl ProcessManager {
                 uuid: Uuid::new_v4(),
                 pid: mc_proc.id().unwrap_or_default(),
                 maximize_window,
+                window_title: window_title.clone(),
                 start_time: Utc::now(),
                 instance_id: instance_id.to_string(),
                 instance_path: instance_path.to_string(),
@@ -509,6 +511,7 @@ impl ProcessManager {
             metadata.uuid,
             metadata.pid,
             metadata.maximize_window,
+            metadata.window_title.clone(),
             ProcessPayloadType::Launched,
             "Launched Minecraft",
             None,
@@ -586,6 +589,7 @@ pub struct ProcessMetadata {
     pub uuid: Uuid,
     pub pid: u32,
     pub maximize_window: bool,
+    pub window_title: Option<String>,
     pub instance_id: String,
     pub instance_path: String,
     pub instance_name: String,
@@ -709,16 +713,37 @@ impl Process {
 
                 pending.push_str(&String::from_utf8_lossy(&chunk[..read]));
 
-                // Drain every complete frame currently buffered.
-                while let Some(frame) = take_next_log4j_frame(&mut pending) {
-                    Self::handle_log4j_frame(
-                        instance_id,
-                        instance_name,
-                        process_id,
-                        log_path.as_ref(),
-                        &frame,
-                    )
-                    .await;
+                // Mods can write plain text to either pipe even when the
+                // launcher selected XML logging. Forward it as soon as a line
+                // is complete instead of retaining it until the game exits.
+                while let Some(output) = take_next_log_output(&mut pending) {
+                    match output {
+                        LogOutput::Xml(frame) => {
+                            Self::handle_log4j_frame(
+                                instance_id,
+                                instance_name,
+                                process_id,
+                                log_path.as_ref(),
+                                &frame,
+                            )
+                            .await;
+                        }
+                        LogOutput::Legacy(text) => {
+                            if let Err(e) =
+                                Self::append_to_log_file(&log_path, &text)
+                            {
+                                tracing::warn!(
+                                    "Failed to write to log file: {e}"
+                                );
+                            }
+                            if !text.trim_end().is_empty() {
+                                Self::emit_legacy_log(
+                                    instance_id,
+                                    text.trim_end(),
+                                );
+                            }
+                        }
+                    }
                 }
 
                 // Guard against a runaway buffer if no frame delimiters ever
@@ -1311,6 +1336,7 @@ impl Process {
             uuid,
             pid,
             false,
+            None,
             ProcessPayloadType::Finished,
             "Exited process",
             Some(!mc_exit_status.success() && !manually_killed),
@@ -1355,32 +1381,119 @@ impl Process {
         Ok(())
     }
 }
-/// Cuts the next complete `<log4j:Event …>…</log4j:Event>` frame out of the
-/// live buffer and returns it as an owned string, leaving any trailing partial
-/// frame in place.
-///
-/// Returns `None` when the buffer does not yet contain a full frame. This is a
-/// plain string operation on purpose: it never poisons any parser state, so a
-/// split or malformed frame on the live pipe cannot stop log forwarding.
-fn take_next_log4j_frame(buffer: &mut String) -> Option<String> {
+#[derive(Debug, Eq, PartialEq)]
+enum LogOutput {
+    Xml(String),
+    Legacy(String),
+}
+
+/// Drains complete XML frames or plain text in stream order. Partial frames
+/// and plain text lines remain buffered until their next chunk arrives.
+fn take_next_log_output(buffer: &mut String) -> Option<LogOutput> {
     const OPEN: &str = "<log4j:Event";
     const CLOSE: &str = "</log4j:Event>";
 
-    let start = buffer.find(OPEN)?;
-    // Discard anything before the frame (raw text, XML prolog, …).
-    if start > 0 {
-        buffer.drain(..start);
+    match buffer.find(OPEN) {
+        Some(0) => {
+            let close = buffer.find(CLOSE)?;
+            let end = close + CLOSE.len();
+            Some(LogOutput::Xml(buffer.drain(..end).collect()))
+        }
+        Some(start) => Some(LogOutput::Legacy(buffer.drain(..start).collect())),
+        None => {
+            let end = buffer.find('\n')? + 1;
+            Some(LogOutput::Legacy(buffer.drain(..end).collect()))
+        }
     }
-    let close = buffer.find(CLOSE)?;
-    let end = close + CLOSE.len();
-    let frame = buffer[..end].to_string();
-    buffer.drain(..end);
-    Some(frame)
 }
 #[cfg(test)]
 mod post_upgrade_tests {
     use super::*;
 
+    #[test]
+    fn mixed_log_output_keeps_partial_xml_and_multiline_messages() {
+        let mut pending = "raw\n<log4j:Ev".to_string();
+        assert_eq!(
+            take_next_log_output(&mut pending),
+            Some(LogOutput::Legacy("raw\n".into()))
+        );
+        assert_eq!(take_next_log_output(&mut pending), None);
+        pending.push_str("ent><log4j:Message><![CDATA[first\nsecond");
+        assert_eq!(take_next_log_output(&mut pending), None);
+        pending.push_str("]]></log4j:Message></log4j:Event>\nafter\n");
+        assert_eq!(take_next_log_output(&mut pending), Some(LogOutput::Xml("<log4j:Event><log4j:Message><![CDATA[first\nsecond]]></log4j:Message></log4j:Event>".into())));
+        assert_eq!(
+            take_next_log_output(&mut pending),
+            Some(LogOutput::Legacy("\n".into()))
+        );
+        assert_eq!(
+            take_next_log_output(&mut pending),
+            Some(LogOutput::Legacy("after\n".into()))
+        );
+        assert!(pending.is_empty());
+    }
+
+    #[tokio::test]
+    async fn xml_logging_forwards_plain_text_before_pipe_closes() {
+        use tokio::io::AsyncWriteExt;
+
+        let instance_id = Uuid::new_v4().to_string();
+        let directory = tempfile::tempdir().unwrap();
+        let log_path = directory.path().join("live.log");
+        let (mut writer, reader) = tokio::io::duplex(1024);
+        let output = Process::process_output(
+            &instance_id,
+            "instance",
+            "Instance",
+            "process",
+            reader,
+            &log_path,
+            true,
+        );
+        tokio::pin!(output);
+        writer.write_all(b"mod output\n").await.unwrap();
+        let forwarded = async {
+            loop {
+                if get_log_buffer(&instance_id) == ["mod output"] {
+                    break;
+                }
+                tokio::time::sleep(std::time::Duration::from_millis(5)).await;
+            }
+        };
+        tokio::select! {
+            _ = &mut output => panic!("reader ended while writer is still open"),
+            result = tokio::time::timeout(std::time::Duration::from_secs(1), forwarded) => {
+                result.expect("plain text was buffered until EOF");
+            }
+        }
+        assert_eq!(std::fs::read_to_string(&log_path).unwrap(), "mod output\n");
+        drop(writer);
+        output.await;
+        remove_log_buffer(&instance_id);
+    }
+
+    #[tokio::test]
+    async fn xml_logging_preserves_plain_text_before_xml_frames() {
+        let instance_id = Uuid::new_v4().to_string();
+        let directory = tempfile::tempdir().unwrap();
+        let log_path = directory.path().join("mixed.log");
+        let input = "mod output\n<log4j:Event level=\"INFO\"><log4j:Message><![CDATA[xml output]]></log4j:Message></log4j:Event>\n";
+        Process::process_output(
+            &instance_id,
+            "instance",
+            "Instance",
+            "process",
+            std::io::Cursor::new(input),
+            &log_path,
+            true,
+        )
+        .await;
+        let lines = get_log_buffer(&instance_id);
+        assert_eq!(lines.first().map(String::as_str), Some("mod output"));
+        assert!(lines.iter().any(|line| line.contains("xml output")));
+        remove_log_buffer(&instance_id);
+    }
+
     #[test]
     fn live_log_snapshot_sequences_batches_and_preserves_position_after_clear()
     {
@@ -1451,6 +1564,7 @@ mod post_upgrade_tests {
                     uuid,
                     pid: child.id().unwrap(),
                     maximize_window: false,
+                    window_title: None,
                     instance_id: "first".into(),
                     instance_path: "first".into(),
                     instance_name: "First".into(),

packages/app-lib/src/state/settings.rs

@@ -176,6 +176,10 @@ pub struct Settings {
     pub force_fullscreen: bool,
     pub maximize_window: bool,
     #[serde(default)]
+    pub custom_window_title_enabled: bool,
+    #[serde(default = "default_window_title")]
+    pub default_window_title: String,
+    #[serde(default)]
     pub force_unicode_font: bool,
     pub game_resolution: WindowSize,
     pub hide_on_process_start: bool,
@@ -198,6 +202,10 @@ pub struct Settings {
     pub version: usize,
 }
 
+fn default_window_title() -> String {
+    "Minecraft".to_string()
+}
+
 fn default_true() -> bool {
     true
 }
@@ -328,6 +336,16 @@ impl Settings {
         )
         .fetch_one(exec)
         .await?;
+        let custom_window_title_enabled: bool = sqlx::query_scalar(
+            "SELECT custom_window_title_enabled FROM settings WHERE id = 0",
+        )
+        .fetch_one(exec)
+        .await?;
+        let default_window_title: String = sqlx::query_scalar(
+            "SELECT default_window_title FROM settings WHERE id = 0",
+        )
+        .fetch_one(exec)
+        .await?;
         let settings = Self {
             max_concurrent_downloads: res.max_concurrent_downloads as usize,
             max_concurrent_writes: res.max_concurrent_writes as usize,
@@ -415,6 +433,8 @@ impl Settings {
             },
             force_fullscreen: res.mc_force_fullscreen == 1,
             maximize_window: res.mc_maximize_window == 1,
+            custom_window_title_enabled,
+            default_window_title,
             force_unicode_font: sqlx::query_scalar(
                 "SELECT mc_force_unicode_font FROM settings WHERE id = 0",
             )
@@ -663,6 +683,18 @@ impl Settings {
             .bind(self.ignore_ssl_errors)
             .execute(exec)
             .await?;
+        sqlx::query(
+            "UPDATE settings SET custom_window_title_enabled = ? WHERE id = 0",
+        )
+        .bind(self.custom_window_title_enabled)
+        .execute(exec)
+        .await?;
+        sqlx::query(
+            "UPDATE settings SET default_window_title = ? WHERE id = 0",
+        )
+        .bind(self.default_window_title.trim())
+        .execute(exec)
+        .await?;
         sqlx::query("UPDATE settings SET mc_memory_optimize = ? WHERE id = 0")
             .bind(self.memory.optimize_before_launch)
             .execute(exec)

packages/app-lib/src/util/download/h2_download.rs

@@ -62,6 +62,7 @@ pub(crate) enum H2DownloadOutcome {
 #[derive(Clone, Copy, Debug, Eq, PartialEq)]
 pub(crate) enum H2DownloadFailure {
     Ineligible(&'static str),
+    Capacity,
     Connect,
     Tls,
     Protocol,
@@ -76,6 +77,7 @@ impl H2DownloadFailure {
     pub(crate) const fn as_str(self) -> &'static str {
         match self {
             Self::Ineligible(reason) => reason,
+            Self::Capacity => "HTTP/2 connection capacity is unavailable",
             Self::Connect => "HTTP/2 TCP connection failed",
             Self::Tls => "HTTP/2 TLS connection failed",
             Self::Protocol => "HTTP/2 protocol failed",
@@ -104,6 +106,7 @@ impl H2DownloadFailure {
 pub(crate) async fn try_download_via_h2(
     request: &DownloadRequest,
     route: &DownloadRoute,
+    semaphore: &fetch::FetchSemaphore,
     destination: &Path,
     part_path: &Path,
     policy: super::native::NativeH2Policy,
@@ -122,13 +125,19 @@ pub(crate) async fn try_download_via_h2(
             preserve_partial: false,
         };
     }
-    let connection = match connect_authority(
-        route,
-        true,
-        policy.allow_cold_connection,
-    )
-    .await
+    let connection_wait =
+        connect_authority(route, true, policy.allow_cold_connection);
+    let connection_result = if let Some(cancellation) =
+        request.cancellation.as_ref()
     {
+        tokio::select! {
+            _ = cancellation.cancelled() => return H2DownloadOutcome::Canceled,
+            result = connection_wait => result,
+        }
+    } else {
+        connection_wait.await
+    };
+    let connection = match connection_result {
         Ok(connection) => connection,
         Err(failure) => {
             return H2DownloadOutcome::Fallback {
@@ -137,6 +146,30 @@ pub(crate) async fn try_download_via_h2(
             };
         }
     };
+    // The shared connection reserves native capacity when it is created.
+    // Acquire the per-download permit afterwards so every native path uses
+    // the same native-then-fetch order and cannot form a circular wait.
+    let fetch_permit_wait =
+        fetch::acquire_fetch_permit_with_pressure(semaphore);
+    let fetch_permit_result = if let Some(cancellation) =
+        request.cancellation.as_ref()
+    {
+        tokio::select! {
+            _ = cancellation.cancelled() => return H2DownloadOutcome::Canceled,
+            result = fetch_permit_wait => result,
+        }
+    } else {
+        fetch_permit_wait.await
+    };
+    let _fetch_permit = match fetch_permit_result {
+        Ok(permit) => permit,
+        Err(_) => {
+            return H2DownloadOutcome::Fallback {
+                failure: H2DownloadFailure::Connect,
+                preserve_partial: false,
+            };
+        }
+    };
     let Ok(uri) = route.url.parse::<Uri>() else {
         return H2DownloadOutcome::Fallback {
             failure: H2DownloadFailure::Http,
@@ -156,14 +189,20 @@ pub(crate) async fn try_download_via_h2(
     let total_size = if let Some(size) = expected_size {
         size
     } else {
-        let _probe_stream_permit = match tokio::time::timeout(
-            ASSET_RESOURCE_WAIT_TIMEOUT,
-            super::h2_stream_budget::acquire(route),
-        )
-        .await
+        let probe_wait = super::h2_stream_budget::acquire_with_pressure(route);
+        let probe_result = if let Some(cancellation) =
+            request.cancellation.as_ref()
         {
-            Ok(Ok(permit)) => permit,
-            Ok(Err(_)) | Err(_) => {
+            tokio::select! {
+                _ = cancellation.cancelled() => return H2DownloadOutcome::Canceled,
+                result = probe_wait => result,
+            }
+        } else {
+            probe_wait.await
+        };
+        let _probe_stream_permit = match probe_result {
+            Ok(permit) => permit,
+            Err(_) => {
                 return H2DownloadOutcome::Fallback {
                     failure: H2DownloadFailure::Connect,
                     preserve_partial: false,
@@ -239,10 +278,7 @@ pub(crate) async fn try_download_via_h2(
         crate::install::DownloadItemStatus::WaitingForResource,
     )
     .await;
-    let stream_wait = tokio::time::timeout(
-        ASSET_RESOURCE_WAIT_TIMEOUT,
-        super::h2_stream_budget::acquire(route),
-    );
+    let stream_wait = super::h2_stream_budget::acquire_with_pressure(route);
     let stream_wait_started = Instant::now();
     let stream_result = if let Some(cancellation) =
         request.cancellation.as_ref()
@@ -255,8 +291,8 @@ pub(crate) async fn try_download_via_h2(
         stream_wait.await
     };
     let _stream_permit = match stream_result {
-        Ok(Ok(permit)) => permit,
-        Ok(Err(_)) | Err(_) => {
+        Ok(permit) => permit,
+        Err(_) => {
             return H2DownloadOutcome::Fallback {
                 failure: H2DownloadFailure::Connect,
                 preserve_partial: false,
@@ -327,6 +363,7 @@ async fn connect_authority(
                 "Failed to establish shared HTTP/2 connection"
             );
             Err(match error.kind {
+                H2ConnectFailureKind::Capacity => H2DownloadFailure::Capacity,
                 H2ConnectFailureKind::Tcp => H2DownloadFailure::Connect,
                 H2ConnectFailureKind::Tls => H2DownloadFailure::Tls,
                 H2ConnectFailureKind::Protocol => H2DownloadFailure::Protocol,
@@ -771,6 +808,12 @@ mod tests {
     use super::*;
     use bytes::Bytes;
 
+    #[test]
+    fn capacity_wait_is_not_classified_as_a_transport_failure() {
+        assert!(!H2DownloadFailure::Capacity.is_transfer_failure());
+        assert!(!H2DownloadFailure::Capacity.should_cooldown_authority());
+    }
+
     #[tokio::test]
     async fn single_stream_reports_bytes_before_the_response_finishes() {
         let size = 512 * 1024;
@@ -1183,28 +1226,6 @@ async fn download_asset_item(
             "timed out waiting for asset destination lock".to_string(),
         )
     })?;
-    let fetch_permit = if apply_native_policy {
-        let Some(semaphore) = native_semaphore else {
-            return Err(crate::ErrorKind::OtherError(
-                "native asset batch is missing fetch budget".to_string(),
-            )
-            .into());
-        };
-        Some(
-            tokio::time::timeout(
-                ASSET_RESOURCE_WAIT_TIMEOUT,
-                semaphore.0.acquire(),
-            )
-            .await
-            .map_err(|_| {
-                crate::ErrorKind::NetworkError(
-                    "timed out waiting for asset fetch permit".to_string(),
-                )
-            })??,
-        )
-    } else {
-        None
-    };
     // A different downloader may have committed the object while this item
     // waited for the destination lock. Reuse it instead of opening another
     // stream, which also prevents cross-engine `.part`/rename races.
@@ -1243,24 +1264,26 @@ async fn download_asset_item(
             return Ok(AssetBatchItemOutcome::LocalObjectFailed { error });
         }
     };
-    let _stream_permit = if apply_native_policy {
-        Some(
-            tokio::time::timeout(
-                ASSET_RESOURCE_WAIT_TIMEOUT,
-                super::h2_stream_budget::acquire_asset(route),
+    // Resolve the primary or lazily expanded sibling before taking the fetch
+    // permit. Shared connections reserve native capacity, so this preserves
+    // the native-then-fetch order used by every other native path.
+    let connection = connections.connection(rescue).await;
+    let fetch_permit = if apply_native_policy {
+        let Some(semaphore) = native_semaphore else {
+            return Err(crate::ErrorKind::OtherError(
+                "native asset batch is missing fetch budget".to_string(),
             )
-            .await
-            .map_err(|_| {
-                crate::ErrorKind::NetworkError(
-                    "timed out waiting for asset HTTP/2 stream permit"
-                        .to_string(),
-                )
-            })??,
-        )
+            .into());
+        };
+        Some(fetch::acquire_fetch_permit_with_pressure(semaphore).await?)
+    } else {
+        None
+    };
+    let _stream_permit = if apply_native_policy {
+        Some(super::h2_stream_budget::acquire_asset_with_pressure(route).await?)
     } else {
         None
     };
-    let connection = connections.connection(rescue).await;
     let _connection_stream = connection.track_stream();
     let mut headers = HeaderMap::new();
     headers.insert(

packages/app-lib/src/util/download/h2_pool.rs

@@ -34,6 +34,7 @@ const CONNECTION_WAIT_TIMEOUT: Duration = Duration::from_secs(45);
 
 #[derive(Debug, Clone, Copy, Eq, PartialEq)]
 pub(crate) enum H2ConnectFailureKind {
+    Capacity,
     Tcp,
     Tls,
     Protocol,
@@ -357,9 +358,41 @@ async fn connect_tcp(host: &str, port: u16) -> std::io::Result<TcpStream> {
 }
 
 /// Connects a new shared HTTP/2 connection to `authority` (host[:port]).
-async fn establish(
+async fn reserve_physical_budget(
     route: &DownloadRoute,
     reserve_native_budget: bool,
+) -> Result<Option<super::native_budget::NativeBudgetPermit>, H2ConnectError> {
+    Ok(if reserve_native_budget {
+        Some(
+            crate::util::fetch::wait_for_download_resource(
+                super::native_budget::acquire(route),
+            )
+            .await
+            .map_err(|_| {
+                H2ConnectError::new(
+                    H2ConnectFailureKind::Capacity,
+                    "HTTP/2 connection capacity remained stalled for 5 minutes"
+                        .to_string(),
+                )
+            })?
+            .map_err(|error| {
+                H2ConnectError::new(
+                    H2ConnectFailureKind::Capacity,
+                    format!(
+                        "failed to reserve HTTP/2 connection capacity: {error}"
+                    ),
+                )
+            })?,
+        )
+    } else {
+        None
+    })
+}
+
+/// Connects a new shared HTTP/2 connection to `authority` (host[:port]).
+async fn establish(
+    route: &DownloadRoute,
+    physical_budget: Option<super::native_budget::NativeBudgetPermit>,
 ) -> Result<Arc<SharedH2Connection>, H2ConnectError> {
     let authority =
         crate::util::fetch::url_authority(&route.url).ok_or_else(|| {
@@ -368,16 +401,6 @@ async fn establish(
                 "HTTP/2 route has no authority".to_string(),
             )
         })?;
-    let physical_budget = if reserve_native_budget {
-        Some(super::native_budget::acquire(route).await.map_err(|error| {
-            H2ConnectError::new(
-                H2ConnectFailureKind::Tcp,
-                format!("failed to reserve HTTP/2 connection capacity: {error}"),
-            )
-        })?)
-    } else {
-        None
-    };
     let (host, port) = authority
         .rsplit_once(':')
         .map(|(host, port)| (host, port.parse::<u16>().unwrap_or(443)))
@@ -487,16 +510,16 @@ pub(crate) async fn shared_connection(
             )
         })?;
     let slot = connection_slot(&authority).await;
-    let mut cached = tokio::time::timeout(CONNECTION_WAIT_TIMEOUT, slot.lock())
-        .await
-        .map_err(|_| {
-            H2ConnectError::new(
-                H2ConnectFailureKind::Protocol,
-                format!(
-                    "timed out waiting for HTTP/2 connection slot {authority}"
-                ),
-            )
-        })?;
+    let mut cached = crate::util::fetch::wait_for_download_resource(
+        slot.lock(),
+    )
+    .await
+    .map_err(|_| {
+        H2ConnectError::new(
+            H2ConnectFailureKind::Capacity,
+            format!("HTTP/2 connection slot remained stalled for {authority}"),
+        )
+    })?;
     if let Some(connection) = cached.as_ref().filter(|connection| {
         !connection.is_dead() && !connection.is_idle_expired()
     }) {
@@ -525,9 +548,11 @@ pub(crate) async fn shared_connection(
         ));
     }
     tracing::debug!(authority, "Establishing cold shared HTTP/2 connection");
+    let physical_budget =
+        reserve_physical_budget(route, reserve_native_budget).await?;
     let connection = tokio::time::timeout(
         CONNECTION_WAIT_TIMEOUT,
-        establish(route, reserve_native_budget),
+        establish(route, physical_budget),
     )
     .await
     .map_err(|_| {
@@ -555,15 +580,16 @@ pub(crate) async fn shared_batch_connection(
             )
         })?;
     let slot = batch_connection_slot(&authority).await;
-    let mut cached = tokio::time::timeout(
-        CONNECTION_WAIT_TIMEOUT,
+    let mut cached = crate::util::fetch::wait_for_download_resource(
         slot.lock(),
     )
     .await
     .map_err(|_| {
         H2ConnectError::new(
-            H2ConnectFailureKind::Protocol,
-            format!("timed out waiting for asset HTTP/2 connection slot {authority}"),
+            H2ConnectFailureKind::Capacity,
+            format!(
+                "asset HTTP/2 connection slot remained stalled for {authority}"
+            ),
         )
     })?;
     if let Some(connection) = cached.as_ref().filter(|connection| {
@@ -591,9 +617,11 @@ pub(crate) async fn shared_batch_connection(
         *cached = None;
     }
     tracing::debug!(authority, "Establishing sibling HTTP/2 asset connection");
+    let physical_budget =
+        reserve_physical_budget(route, reserve_native_budget).await?;
     let connection = tokio::time::timeout(
         CONNECTION_WAIT_TIMEOUT,
-        establish(route, reserve_native_budget),
+        establish(route, physical_budget),
     )
     .await
     .map_err(|_| {
@@ -614,10 +642,13 @@ pub(crate) async fn has_live_connection(authority: &str) -> bool {
         return false;
     };
     drop(connections);
-    let live = slot
-        .lock()
-        .await
+    let Ok(cached) = slot.try_lock() else {
+        // This is only an eligibility probe. A busy slot means another task
+        // is establishing or refreshing the connection; do not queue this
+        // caller behind that work before its cancellation-aware download path.
+        return false;
+    };
+    cached
         .as_ref()
-        .is_some_and(|connection| !connection.is_dead());
-    live
+        .is_some_and(|connection| !connection.is_dead())
 }

packages/app-lib/src/util/download/h2_range.rs

@@ -218,13 +218,9 @@ async fn download_range(
         crate::install::DownloadItemStatus::WaitingForResource,
     )
     .await;
-    let _permit = tokio::time::timeout(
-        Duration::from_secs(45),
-        super::h2_stream_budget::acquire(route),
-    )
-    .await
-    .map_err(|_| H2DownloadFailure::Connect)?
-    .map_err(|_| H2DownloadFailure::Connect)?;
+    let _permit = super::h2_stream_budget::acquire_with_pressure(route)
+        .await
+        .map_err(|_| H2DownloadFailure::Connect)?;
     super::h2_download::record_install_stage(
         request,
         crate::install::DownloadItemStatus::Downloading,

packages/app-lib/src/util/download/h2_stream_budget.rs

@@ -104,6 +104,20 @@ pub(crate) async fn acquire(
     }
 }
 
+pub(crate) async fn acquire_with_pressure(
+    route: &DownloadRoute,
+) -> crate::Result<H2StreamPermit> {
+    crate::util::fetch::wait_for_download_resource(acquire(route))
+        .await
+        .map_err(|_| {
+            crate::Error::from(crate::ErrorKind::NetworkError(
+                "HTTP/2 stream permit remained stalled for 5 minutes"
+                    .to_string(),
+            ))
+        })?
+        .map_err(Into::into)
+}
+
 /// Acquires a stream for the Minecraft asset batch. Assets retain a large
 /// logical worker window, but use a separate physical stream pool so they
 /// cannot consume the ordinary native content share.
@@ -134,10 +148,25 @@ pub(crate) async fn acquire_asset(
     }
 }
 
+pub(crate) async fn acquire_asset_with_pressure(
+    route: &DownloadRoute,
+) -> crate::Result<H2StreamPermit> {
+    crate::util::fetch::wait_for_download_resource(acquire_asset(route))
+        .await
+        .map_err(|_| {
+            crate::Error::from(crate::ErrorKind::NetworkError(
+                "asset HTTP/2 stream permit remained stalled for 5 minutes"
+                    .to_string(),
+            ))
+        })?
+        .map_err(Into::into)
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
     use crate::util::fetch::DownloadRouteSource;
+    use std::sync::atomic::{AtomicUsize, Ordering};
 
     fn route() -> DownloadRoute {
         DownloadRoute {
@@ -190,4 +219,40 @@ mod tests {
             MAX_H2_STREAMS_PER_AUTHORITY
         );
     }
+
+    #[tokio::test]
+    async fn contended_stream_wait_reports_pressure_and_resumes() {
+        let route = DownloadRoute {
+            url: "https://h2-pressure.example/file".to_string(),
+            source: DownloadRouteSource::Official,
+            is_mirror: false,
+            allow_sensitive_headers: true,
+            supports_range: true,
+            proxy: ProxyPolicy::Direct,
+        };
+        let mut held = Vec::new();
+        for _ in 0..MAX_H2_STREAMS_PER_AUTHORITY {
+            held.push(acquire(&route).await.unwrap());
+        }
+        let pressure = Arc::new(AtomicUsize::new(0));
+        let observed = Arc::clone(&pressure);
+        let release = tokio::spawn(async move {
+            tokio::time::sleep(Duration::from_millis(35)).await;
+            drop(held);
+        });
+
+        let permit = crate::util::fetch::wait_for_resource_with_pressure(
+            acquire(&route),
+            Duration::from_millis(5),
+            Duration::from_millis(100),
+            move || {
+                observed.fetch_add(1, Ordering::Relaxed);
+            },
+        )
+        .await;
+
+        release.await.unwrap();
+        assert!(permit.is_ok());
+        assert!(pressure.load(Ordering::Relaxed) >= 1);
+    }
 }

packages/app-lib/src/util/download/mod.rs

@@ -73,6 +73,19 @@ pub(crate) fn task_concurrency_limit(state: &crate::State) -> Option<usize> {
     if active_engine() == DownloadEngine::XmclCompat {
         None
     } else {
-        Some(state.download_concurrency())
+        Some(native_budget::task_limit(
+            state.download_concurrency(),
+            usize::MAX,
+        ))
+    }
+}
+
+pub(crate) fn single_authority_task_concurrency_limit(
+    state: &crate::State,
+) -> Option<usize> {
+    if active_engine() == DownloadEngine::XmclCompat {
+        None
+    } else {
+        Some(native_budget::task_limit(state.download_concurrency(), 1))
     }
 }

packages/app-lib/src/util/download/native_budget.rs

@@ -144,6 +144,15 @@ pub(crate) fn available(route: &DownloadRoute) -> usize {
         .unwrap_or(MAX_CONNECTIONS_PER_AUTHORITY)
 }
 
+pub(crate) fn task_limit(
+    configured_limit: usize,
+    authority_count: usize,
+) -> usize {
+    configured_limit.max(1).min(MAX_NATIVE_CONNECTIONS).min(
+        MAX_CONNECTIONS_PER_AUTHORITY.saturating_mul(authority_count.max(1)),
+    )
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -174,4 +183,11 @@ mod tests {
         drop(permits);
         assert!(try_acquire(&route).is_ok());
     }
+
+    #[test]
+    fn task_limit_matches_native_connection_capacity() {
+        assert_eq!(task_limit(128, 1), 8);
+        assert_eq!(task_limit(128, 4), 32);
+        assert_eq!(task_limit(4, 1), 4);
+    }
 }

packages/app-lib/src/util/fetch.rs

@@ -85,6 +85,8 @@ const MAX_REDIRECT_LOCATION_BYTES: usize = 8 * 1024;
 const FILE_TRANSFER_CONNECT_TIMEOUT: time::Duration =
     time::Duration::from_secs(20);
 const RESOURCE_WAIT_TIMEOUT: time::Duration = time::Duration::from_secs(45);
+const RESOURCE_PRESSURE_INTERVAL: time::Duration = time::Duration::from_secs(3);
+const RESOURCE_STALL_TIMEOUT: time::Duration = time::Duration::from_secs(300);
 #[cfg(not(test))]
 const FILE_TRANSFER_READ_TIMEOUT: time::Duration =
     time::Duration::from_secs(60);
@@ -3894,6 +3896,73 @@ struct NativeConnectionPermit<'a> {
     _native: crate::util::download::native_budget::NativeBudgetPermit,
 }
 
+#[derive(Clone, Copy, Debug, Eq, PartialEq)]
+pub(crate) enum ResourceWaitError {
+    TimedOut,
+}
+
+pub(crate) async fn wait_for_resource_with_pressure<F, T, P>(
+    future: F,
+    pressure_interval: time::Duration,
+    stall_timeout: time::Duration,
+    mut on_pressure: P,
+) -> Result<T, ResourceWaitError>
+where
+    F: Future<Output = T>,
+    P: FnMut(),
+{
+    let pressure_interval =
+        pressure_interval.max(time::Duration::from_millis(1));
+    let pressure_timer = tokio::time::sleep(pressure_interval);
+    let stall_timer = tokio::time::sleep(stall_timeout);
+    tokio::pin!(future, pressure_timer, stall_timer);
+
+    loop {
+        tokio::select! {
+            result = &mut future => return Ok(result),
+            _ = &mut stall_timer => return Err(ResourceWaitError::TimedOut),
+            _ = &mut pressure_timer => {
+                on_pressure();
+                pressure_timer.as_mut().reset(
+                    tokio::time::Instant::now() + pressure_interval,
+                );
+            }
+        }
+    }
+}
+
+pub(crate) async fn wait_for_download_resource<F, T>(
+    future: F,
+) -> Result<T, ResourceWaitError>
+where
+    F: Future<Output = T>,
+{
+    wait_for_resource_with_pressure(
+        future,
+        RESOURCE_PRESSURE_INTERVAL,
+        RESOURCE_STALL_TIMEOUT,
+        || {
+            if let Some(state) = crate::State::get_if_initialized() {
+                state.record_download_queue_wait();
+            }
+        },
+    )
+    .await
+}
+
+pub(crate) async fn acquire_fetch_permit_with_pressure(
+    semaphore: &FetchSemaphore,
+) -> crate::Result<SemaphorePermit<'_>> {
+    wait_for_download_resource(semaphore.0.acquire())
+        .await
+        .map_err(|_| {
+            crate::Error::from(ErrorKind::NetworkError(
+                "download permit remained stalled for 5 minutes".to_string(),
+            ))
+        })?
+        .map_err(Into::into)
+}
+
 async fn acquire_native_connection<'a>(
     route: &DownloadRoute,
     semaphore: &'a FetchSemaphore,
@@ -3906,6 +3975,20 @@ async fn acquire_native_connection<'a>(
     })
 }
 
+async fn acquire_native_connection_with_pressure<'a>(
+    route: &DownloadRoute,
+    semaphore: &'a FetchSemaphore,
+) -> crate::Result<NativeConnectionPermit<'a>> {
+    wait_for_download_resource(acquire_native_connection(route, semaphore))
+        .await
+        .map_err(|_| {
+            crate::Error::from(ErrorKind::NetworkError(
+                "native download resources remained stalled for 5 minutes"
+                    .to_string(),
+            ))
+        })?
+}
+
 fn try_acquire_native_connection<'a>(
     route: &DownloadRoute,
     semaphore: &'a FetchSemaphore,
@@ -5703,19 +5786,11 @@ async fn download_to_path_inner(
         None
     };
     if let Some((h2_route, h2_policy)) = h2_selection {
-        let h2_permit =
-            tokio::time::timeout(RESOURCE_WAIT_TIMEOUT, semaphore.0.acquire())
-                .await
-                .map_err(|_| {
-                    ErrorKind::NetworkError(
-                        "timed out waiting for HTTP/2 download permit"
-                            .to_string(),
-                    )
-                })??;
         let h2_started = Instant::now();
         match crate::util::download::h2_download::try_download_via_h2(
             &request,
             &h2_route,
+            semaphore,
             destination,
             &part_path,
             h2_policy,
@@ -5808,7 +5883,6 @@ async fn download_to_path_inner(
                     .await?;
             }
         }
-        drop(h2_permit);
     }
 
     let mut official_integrity_retry = h2_failed_nonofficial.is_some();
@@ -6147,8 +6221,6 @@ async fn download_to_path_inner(
                 } else {
                     0
                 };
-                let mut activity = crate::State::get_if_initialized()
-                    .map(|state| state.begin_download_connection());
                 record_install_download_started(
                     &request,
                     route,
@@ -6161,25 +6233,21 @@ async fn download_to_path_inner(
                     DownloadItemStatus::WaitingForResource,
                 )
                 .await;
-                let permit_wait = tokio::time::timeout(
-                    RESOURCE_WAIT_TIMEOUT,
-                    acquire_native_connection(route, semaphore),
-                );
+                let permit_wait =
+                    acquire_native_connection_with_pressure(route, semaphore);
                 let resource_wait_started = Instant::now();
-                let permit = if let Some(cancellation) = request.cancellation.as_ref() {
+                let permit = if let Some(cancellation) =
+                    request.cancellation.as_ref()
+                {
                     tokio::select! {
                         _ = cancellation.cancelled() => return Err(ErrorKind::OtherError("download canceled while waiting for native resources".to_string()).into()),
                         result = permit_wait => result,
                     }
                 } else {
                     permit_wait.await
-                }
-                .map_err(|_| {
-                    ErrorKind::NetworkError(
-                        "timed out waiting for native download resources"
-                            .to_string(),
-                    )
-                })??;
+                }?;
+                let mut activity = crate::State::get_if_initialized()
+                    .map(|state| state.begin_download_connection());
                 tracing::debug!(
                     route = %sanitize_url_for_log(&route.url),
                     resource = "native_connection_and_fetch",
@@ -7135,6 +7203,40 @@ mod tests {
     static H2_FALLBACK_TEST_LOCK: LazyLock<std::sync::Mutex<()>> =
         LazyLock::new(|| std::sync::Mutex::new(()));
 
+    #[tokio::test]
+    async fn resource_wait_reports_pressure_without_losing_queue_position() {
+        let pressure_events = Arc::new(AtomicUsize::new(0));
+        let observed = Arc::clone(&pressure_events);
+        let result = wait_for_resource_with_pressure(
+            async {
+                tokio::time::sleep(Duration::from_millis(35)).await;
+                7
+            },
+            Duration::from_millis(5),
+            Duration::from_millis(100),
+            move || {
+                observed.fetch_add(1, Ordering::Relaxed);
+            },
+        )
+        .await;
+
+        assert_eq!(result, Ok(7));
+        assert!(pressure_events.load(Ordering::Relaxed) >= 1);
+    }
+
+    #[tokio::test]
+    async fn resource_wait_keeps_a_final_stall_guard() {
+        let result = wait_for_resource_with_pressure(
+            std::future::pending::<()>(),
+            Duration::from_millis(5),
+            Duration::from_millis(25),
+            || {},
+        )
+        .await;
+
+        assert_eq!(result, Err(ResourceWaitError::TimedOut));
+    }
+
     async fn spawn_range_server(
         data: Arc<Vec<u8>>,
         wrong_content_range: bool,

packages/app-lib/src/util/platform.rs

@@ -1,5 +1,6 @@
 //! Platform-related code
 use daedalus::minecraft::{Os, OsRule};
+use std::path::PathBuf;
 
 /// (e.g. "Run as administrator" on Windows).
 #[cfg(target_os = "windows")]
@@ -143,3 +144,31 @@ pub fn classpath_separator(java_arch: &str) -> &'static str {
         Os::Windows | Os::WindowsArm64 => ";",
     }
 }
+
+/// Root directory used as the default for one-click StarLight instance
+/// installs. Portable builds live next to their executable, which is a fine
+/// place for game data. System installs (e.g. a Linux `.deb` under `/usr/bin`)
+/// do not, so fall back to the user's home directory there.
+pub fn default_game_dir_root() -> Option<PathBuf> {
+    let exe_dir = std::env::current_exe().ok()?.parent()?.to_path_buf();
+    if cfg!(target_os = "linux") && is_system_install_dir(&exe_dir) {
+        return dirs::home_dir();
+    }
+    Some(exe_dir)
+}
+
+#[cfg(target_os = "linux")]
+fn is_system_install_dir(path: &std::path::Path) -> bool {
+    const SYSTEM_PREFIXES: &[&str] = &[
+        "/usr/", "/opt/", "/snap/", "/bin/", "/sbin/", "/lib/", "/lib64/",
+    ];
+    let display = path.to_string_lossy();
+    SYSTEM_PREFIXES
+        .iter()
+        .any(|prefix| display.starts_with(prefix))
+}
+
+#[cfg(not(target_os = "linux"))]
+fn is_system_install_dir(_path: &std::path::Path) -> bool {
+    false
+}