diff --git a/src/lib/components/settings/sections/DevToolsSettings.svelte b/src/lib/components/settings/sections/DevToolsSettings.svelte
index 71eb81b..260b50a 100644
--- a/src/lib/components/settings/sections/DevToolsSettings.svelte
+++ b/src/lib/components/settings/sections/DevToolsSettings.svelte
@@ -76,7 +76,7 @@
     let entries = 0, oldest: number | null = null, newest: number | null = null
     const foundKeys: string[] = []
     const checkKey = (k: string) => {
-      const age = cache.ageOf(k)
+      const age = cache?.ageOf?.(k)
       if (age !== undefined) {
         entries++
         foundKeys.push(k)
@@ -85,7 +85,7 @@
         if (newest === null || ts > newest) newest = ts
       }
     }
-    ['library', 'sources', 'popular'].forEach(checkKey)
+    ['library', 'sources', 'popular'].forEach(checkKey);
     ['Action','Romance','Fantasy','Comedy','Drama','Horror','Sci-Fi','Adventure','Thriller',
      'Isekai','Supernatural','Historical','Psychological','Sports','Mystery','Mecha',
      'Slice of Life','School Life','Martial Arts','Magic','Military'].forEach(g => checkKey(`genre:${g}`))
@@ -104,7 +104,7 @@
   function triggerSplash() {
     splashTriggered = true
     setTimeout(() => splashTriggered = false, 200)
-    ;(window as any).__mokuShowSplash?.()
+    appState.idleSplash = true
   }
 
   async function testWindowsHello() {
@@ -192,7 +192,7 @@
       <div class="s-dev-grid">
         <span class="s-dev-key">Filter</span>  <span class="s-dev-val">{appState.libraryFilter}</span>
         <span class="s-dev-key">Folders</span> <span class="s-dev-val">{appState.categories.filter(c => c.id !== 0).map(c => c.name).join(', ') || 'none'}</span>
-        <span class="s-dev-key">History</span> <span class="s-dev-val">{appState.history.length} entries</span>
+        <span class="s-dev-key">History</span> <span class="s-dev-val">{appState.history?.length ?? 0} entries</span>
         <span class="s-dev-key">Cache</span>   <span class="s-dev-val">{perfSnapshot?.cacheEntries ?? '—'} entries</span>
         <span class="s-dev-key">Toasts</span> <span class="s-dev-val">{appState.toasts.length} queued</span>
         <span class="s-dev-key">Version</span> <span class="s-dev-val">{appVersion} · {import.meta.env.MODE}</span>
diff --git a/src/lib/components/settings/sections/LibrarySettings.svelte b/src/lib/components/settings/sections/LibrarySettings.svelte
index 311419a..dc9c081 100644
--- a/src/lib/components/settings/sections/LibrarySettings.svelte
+++ b/src/lib/components/settings/sections/LibrarySettings.svelte
@@ -83,8 +83,8 @@
   <div class="s-section">
     <div class="s-section-body">
       <div class="s-row">
-        <div class="s-row-info"><span class="s-label">Reading history</span><span class="s-desc">{homeState.history.length} entries</span></div>
-        <button class="s-btn s-btn-danger" onclick={clearHistory} disabled={homeState.history.length === 0}>Clear</button>
+        <div class="s-row-info"><span class="s-label">Reading history</span><span class="s-desc">{homeState.history?.length ?? 0} entries</span></div>
+        <button class="s-btn s-btn-danger" onclick={clearHistory} disabled={!homeState.history?.length}>Clear</button>
       </div>
     </div>
   </div>
diff --git a/src/lib/components/settings/sections/StorageSettings.svelte b/src/lib/components/settings/sections/StorageSettings.svelte
index ecac1fe..1956a9a 100644
--- a/src/lib/components/settings/sections/StorageSettings.svelte
+++ b/src/lib/components/settings/sections/StorageSettings.svelte
@@ -12,6 +12,9 @@
   import { clearBlobCache } from '$lib/core/cache/imageCache'
   import { clearPageCache } from '$lib/request-manager'
   import { cache as queryCache } from '$lib/core/cache/queryCache'
+  import { getAdapter } from '$lib/request-manager'
+  import { requestManager } from '$lib/request-manager'
+  import type { ValidateBackupResult, RestoreStatus } from '$lib/server-adapters/types'
 
   const supportsFilesystem = platformService.isSupported('filesystem')
 
@@ -79,7 +82,7 @@
     await Promise.all([
       platformService.clearMokuCache(),
       platformService.clearSuwayomiCache(),
-      gql(`mutation { clearCachedImages(input: { cachedPages: true, cachedThumbnails: true, downloadedThumbnails: false }) { cachedPages cachedThumbnails } }`),
+      getAdapter().clearCachedImages({ cachedPages: true, cachedThumbnails: true, downloadedThumbnails: false }),
     ])
   }
 
@@ -168,11 +171,7 @@
     if (!supportsFilesystem) return
     storageLoading = true; storageError = null
     try {
-      const pathData = await gql<{ settings: { downloadsPath: string | null; localSourcePath: string | null } }>(
-        `{ settings { downloadsPath localSourcePath } }`
-      )
-      const dl  = pathData.settings.downloadsPath  ?? ''
-      const loc = pathData.settings.localSourcePath ?? ''
+      const { downloadsPath: dl, localSourcePath: loc } = await getAdapter().getDownloadsPath()
       downloadsPathInput = dl; localSourcePathInput = loc
       confirmedDownloadsPath = dl; confirmedLocalSourcePath = loc
       updateSettings({ serverDownloadsPath: dl, serverLocalSourcePath: loc })
@@ -218,8 +217,8 @@
     if (dlErr || locErr) { pathsFieldError = { ...(dlErr ? { dl: dlErr } : {}), ...(locErr ? { loc: locErr } : {}) }; return }
     pathsSaving = true
     try {
-      await gql(`mutation($path: String!) { setSettings(input: { settings: { downloadsPath: $path } }) { settings { downloadsPath } } }`, { path: dl })
-      if (loc) await gql(`mutation($path: String!) { setSettings(input: { settings: { localSourcePath: $path } }) { settings { localSourcePath } } }`, { path: loc })
+      await getAdapter().setDownloadsPath(dl)
+      if (loc) await getAdapter().setLocalSourcePath(loc)
       updateSettings({ serverDownloadsPath: dl, serverLocalSourcePath: loc })
       if (supportsFilesystem && !isExternalServer) {
         const oldDl = confirmedDownloadsPath || defaultDownloadsPath
@@ -301,8 +300,7 @@
   async function createBackup() {
     backupLoading = true; backupError = null
     try {
-      const data = await gql<{ createBackup: { url: string } }>(`mutation { createBackup { url } }`)
-      const { url } = data.createBackup
+      const { url } = await getAdapter().createBackup()
       const name = url.split('/').pop() ?? url
       backupList = [{ url, name }, ...backupList]
       await saveBackupList()
@@ -313,7 +311,7 @@
   async function deleteBackup(url: string) {
     backupList = backupList.map(b => b.url === url ? { ...b, deleting: true } : b)
     try {
-      await fetch(`${serverUrl()}${url}`, { method: 'DELETE', headers: buildAuthHeaders() })
+      await getAdapter().deleteBackup(url)
       backupList = backupList.filter(b => b.url !== url)
       await saveBackupList()
     } catch (e: any) {
@@ -324,9 +322,7 @@
 
   async function downloadBackup(backup: BackupEntry) {
     try {
-      const resp = await fetch(`${serverUrl()}${backup.url}`, { headers: buildAuthHeaders() })
-      if (!resp.ok) throw new Error(`Server returned ${resp.status}`)
-      const blob = await resp.blob()
+      const blob = await getAdapter().downloadBackup(backup.url)
       if ('showSaveFilePicker' in window) {
         try {
           const handle = await (window as any).showSaveFilePicker({
@@ -349,12 +345,11 @@
 
   let restoreLoading      = $state(false)
   let restoreError        = $state<string | null>(null)
-  let restoreJobId        = $state<string | null>(null)
-  let restoreStatus       = $state<{ mangaProgress: number; state: string; totalManga: number } | null>(null)
+  let restoreStatus       = $state<RestoreStatus | null>(null)
   let restorePollInterval = $state<ReturnType<typeof setInterval> | null>(null)
   let validateLoading     = $state(false)
   let validateError       = $state<string | null>(null)
-  let validateResult      = $state<{ missingSources: { id: string; name: string }[]; missingTrackers: { name: string }[] } | null>(null)
+  let validateResult      = $state<ValidateBackupResult | null>(null)
   let restoreFile         = $state<File | null>(null)
 
   function stopRestorePoll() {
@@ -363,62 +358,19 @@
 
   async function pollRestoreStatus(id: string) {
     try {
-      const data = await gql<{ restoreStatus: { mangaProgress: number; state: string; totalManga: number } }>(
-        `query($id: String!) { restoreStatus(id: $id) { mangaProgress state totalManga } }`,
-        { id }
-      )
-      const status = data.restoreStatus
+      const status = await getAdapter().pollRestoreStatus(id)
       restoreStatus = status
       if (status?.state === 'SUCCESS' || status?.state === 'FAILURE') stopRestorePoll()
     } catch {}
   }
 
-  function buildBackupFormData(file: File, query: string, variables: Record<string, unknown>) {
-    const form = new FormData()
-    form.append('operations', JSON.stringify({ query, variables }))
-    form.append('map', JSON.stringify({ '0': ['variables.backup'] }))
-    form.append('0', file, file.name)
-    return form
-  }
-
-  function buildAuthHeaders(): Record<string, string> {
-    const headers: Record<string, string> = { Accept: 'application/json' }
-    const pass = settingsState.settings.serverAuthPass ?? '', user = settingsState.settings.serverAuthUser ?? ''
-    if (settingsState.settings.serverAuthMode === 'BASIC_AUTH' && user && pass)
-      headers['Authorization'] = 'Basic ' + btoa(`${user}:${pass}`)
-    return headers
-  }
-
-  function serverUrl(): string {
-    return (settingsState.settings.serverUrl ?? 'http://localhost:4567').replace(/\/$/, '')
-  }
-
-  async function gql<T = unknown>(query: string, variables?: Record<string, unknown>): Promise<T> {
-    const res = await fetch(`${serverUrl()}/api/graphql`, {
-      method: 'POST',
-      headers: { 'Content-Type': 'application/json', ...buildAuthHeaders() },
-      body: JSON.stringify({ query, variables }),
-    })
-    const json = await res.json()
-    if (json.errors?.length) throw new Error(json.errors[0].message)
-    return json.data as T
-  }
-
   async function submitRestore() {
     if (!restoreFile) return
-    restoreLoading = true; restoreError = null; restoreStatus = null; restoreJobId = null
+    restoreLoading = true; restoreError = null; restoreStatus = null
     stopRestorePoll()
     try {
-      const form = buildBackupFormData(
-        restoreFile,
-        `mutation RestoreBackup($backup: Upload!) { restoreBackup(input: { backup: $backup }) { id status { mangaProgress state totalManga } } }`,
-        { backup: null }
-      )
-      const resp = await fetch(`${serverUrl()}/api/graphql`, { method: 'POST', headers: buildAuthHeaders(), body: form })
-      const json = await resp.json()
-      if (json.errors?.length) throw new Error(json.errors[0].message)
-      const result = json.data.restoreBackup
-      restoreJobId = result.id; restoreStatus = result.status
+      const result = await requestManager.meta.restoreBackup(restoreFile)
+      restoreStatus = result.status
       if (result.status?.state !== 'SUCCESS' && result.status?.state !== 'FAILURE')
         restorePollInterval = setInterval(() => pollRestoreStatus(result.id), 1500)
     } catch (e: any) { restoreError = e?.message ?? 'Failed to start restore' }
@@ -429,15 +381,7 @@
     if (!restoreFile) return
     validateLoading = true; validateError = null; validateResult = null
     try {
-      const form = buildBackupFormData(
-        restoreFile,
-        `query ValidateBackup($backup: Upload!) { validateBackup(input: { backup: $backup }) { missingSources { id name } missingTrackers { name } } }`,
-        { backup: null }
-      )
-      const resp = await fetch(`${serverUrl()}/api/graphql`, { method: 'POST', headers: buildAuthHeaders(), body: form })
-      const json = await resp.json()
-      if (json.errors?.length) throw new Error(json.errors[0].message)
-      validateResult = json.data.validateBackup
+      validateResult = await requestManager.meta.validateBackup(restoreFile)
     } catch (e: any) { validateError = e?.message ?? 'Failed to validate backup' }
     finally { validateLoading = false }
   }
diff --git a/src/lib/components/settings/sections/TrackingSettings.svelte b/src/lib/components/settings/sections/TrackingSettings.svelte
index 40668b0..f0718c8 100644
--- a/src/lib/components/settings/sections/TrackingSettings.svelte
+++ b/src/lib/components/settings/sections/TrackingSettings.svelte
@@ -3,6 +3,7 @@
   import { settingsState, updateSettings } from "$lib/state/settings.svelte";
   import { toast } from "$lib/state/notifications.svelte";
   import { getAdapter } from "$lib/request-manager";
+  import { platformService } from "$lib/platform-service";
   import { syncBackFromTracker } from "$lib/components/tracking/lib/trackingSync";
   import { trackingState } from "$lib/state/tracking.svelte";
   import type { Tracker, TrackRecord } from "$lib/types/index";
@@ -41,7 +42,7 @@
   async function startOAuth(tracker: Tracker) {
     if (!tracker.authUrl) return;
     oauthTrackerId = tracker.id; oauthCallbackInput = "";
-    window.open(tracker.authUrl, "_blank");
+    await platformService.openExternal(tracker.authUrl);
   }
 
   async function submitOAuth() {
@@ -274,6 +275,7 @@
 
 <style>
   .s-tracker-status-row { display: flex; align-items: center; gap: var(--sp-2); flex-wrap: wrap; }
+  .s-tracker-status-row .s-pill { border-radius: 4px; }
   .s-pill-warn { background: color-mix(in srgb, var(--color-warn, #c97c2b) 15%, transparent); color: var(--color-warn, #c97c2b); border-color: color-mix(in srgb, var(--color-warn, #c97c2b) 35%, transparent); }
   .s-banner-dismissible { cursor: pointer; max-height: 8rem; overflow-y: auto; }
   .s-banner-dismissible:hover { opacity: 0.85; }
diff --git a/src/lib/request-manager/meta.ts b/src/lib/request-manager/meta.ts
index 757775e..1ad684a 100644
--- a/src/lib/request-manager/meta.ts
+++ b/src/lib/request-manager/meta.ts
@@ -1,4 +1,5 @@
 import { getAdapter } from "$lib/request-manager";
+import type { ValidateBackupResult, RestoreStatus } from "$lib/server-adapters/types";
 
 export async function getAboutServer() {
   return getAdapter().getAboutServer();
@@ -6,4 +7,12 @@ export async function getAboutServer() {
 
 export async function getAboutWebUI() {
   return getAdapter().getAboutWebUI();
+}
+
+export async function restoreBackup(file: File): Promise<{ id: string; status: RestoreStatus }> {
+  return getAdapter().restoreBackup(file);
+}
+
+export async function validateBackup(file: File): Promise<ValidateBackupResult> {
+  return getAdapter().validateBackup(file);
 }
\ No newline at end of file
diff --git a/src/lib/server-adapters/suwayomi/index.ts b/src/lib/server-adapters/suwayomi/index.ts
index d7b798a..fa024c1 100644
--- a/src/lib/server-adapters/suwayomi/index.ts
+++ b/src/lib/server-adapters/suwayomi/index.ts
@@ -16,6 +16,8 @@ import type {
   TrackRecordPatch,
   AboutServer,
   AboutWebUI,
+  RestoreStatus,
+  ValidateBackupResult,
 } from '$lib/server-adapters/types'
 import type { DownloadStatus } from '$lib/types/api'
 import type { Manga, Chapter, Extension, Source, Tracker, TrackRecord, Category } from '$lib/types'
@@ -39,11 +41,10 @@ import {
   UPDATE_STOP,
   SET_MANGA_META,
   DELETE_MANGA_META,
-  CREATE_BACKUP,
-  RESTORE_BACKUP,
   FETCH_SOURCE_MANGA,
   LIBRARY_UPDATE_STATUS,
   MANGAS_BY_GENRE,
+  POLL_RESTORE_STATUS,
 } from './manga'
 import {
   GET_CHAPTERS,
@@ -101,6 +102,7 @@ import {
   UPDATE_TRACK,
   LOGIN_TRACKER_CREDENTIALS,
   LOGOUT_TRACKER,
+  LOGIN_TRACKER_OAUTH,
 } from './tracking'
 import {
   GET_ABOUT_SERVER,
@@ -110,6 +112,9 @@ import {
   GET_METAS,
   SET_SOCKS_PROXY,
   SET_FLARE_SOLVERR,
+  RESTORE_BACKUP,
+  VALIDATE_BACKUP,
+  CREATE_BACKUP,
 } from './meta'
 import {
   type GQLResponse,
@@ -136,7 +141,7 @@ function mapDownloadStatus(raw: { state: string; queue: RawQueueItem[] }): Downl
 }
 
 export class SuwayomiAdapter implements ServerAdapter {
-  private baseUrl = 'http://127.0.0.1:4567'
+  private baseUrl    = 'http://127.0.0.1:4567'
   private authHeader: string | null = null
 
   async connect(config: ServerConfig): Promise<void> {
@@ -220,6 +225,26 @@ export class SuwayomiAdapter implements ServerAdapter {
     return { items, hasNextPage: false }
   }
 
+  async getMangasByGenre(
+    filter:  Record<string, unknown>,
+    first:   number,
+    offset:  number,
+    signal?: AbortSignal,
+  ): Promise<{ items: Manga[]; hasNextPage: boolean; totalCount: number }> {
+    const data = await this.gql<{
+      mangas: {
+        nodes:      Record<string, unknown>[]
+        pageInfo:   { hasNextPage: boolean }
+        totalCount: number
+      }
+    }>(MANGAS_BY_GENRE, { filter, first, offset }, signal)
+    return {
+      items:       data.mangas.nodes.map(mapManga),
+      hasNextPage: data.mangas.pageInfo.hasNextPage,
+      totalCount:  data.mangas.totalCount,
+    }
+  }
+
   async searchManga(query: string, sourceId?: string): Promise<Manga[]> {
     if (!sourceId) return []
     const data = await this.gql<{ fetchSourceManga: { mangas: Record<string, unknown>[] } }>(
@@ -280,9 +305,7 @@ export class SuwayomiAdapter implements ServerAdapter {
   }
 
   async getRecentlyUpdated(): Promise<Chapter[]> {
-    const data = await this.gql<{ chapters: { nodes: Record<string, unknown>[] } }>(
-      GET_RECENTLY_UPDATED
-    )
+    const data = await this.gql<{ chapters: { nodes: Record<string, unknown>[] } }>(GET_RECENTLY_UPDATED)
     return data.chapters.nodes.map(mapChapter)
   }
 
@@ -357,9 +380,7 @@ export class SuwayomiAdapter implements ServerAdapter {
         reorderChapterDownload: { downloadStatus: { state: string; queue: RawQueueItem[] } }
       }>(REORDER_DOWNLOAD, { chapterId: Number(chapterId), to })
       return mapDownloadStatus(data.reorderChapterDownload.downloadStatus)
-    } catch {
-      return null
-    }
+    } catch { return null }
   }
 
   async clearDownloads(): Promise<void> {
@@ -545,6 +566,18 @@ export class SuwayomiAdapter implements ServerAdapter {
     await this.gql(TRACK_PROGRESS, { mangaId: Number(mangaId) })
   }
 
+  async loginTrackerOAuth(trackerId: string, callbackUrl: string): Promise<void> {
+    await this.gql(LOGIN_TRACKER_OAUTH, { trackerId: Number(trackerId), callbackUrl })
+  }
+
+  async loginTrackerCredentials(trackerId: string, username: string, password: string): Promise<void> {
+    await this.gql(LOGIN_TRACKER_CREDENTIALS, { trackerId: Number(trackerId), username, password })
+  }
+
+  async logoutTracker(trackerId: string): Promise<void> {
+    await this.gql(LOGOUT_TRACKER, { trackerId: Number(trackerId) })
+  }
+
   async getServerSecurity(): Promise<ServerSecurity> {
     const data = await this.gql<{ settings: ServerSecurity }>(GET_SERVER_SECURITY)
     return data.settings
@@ -581,26 +614,60 @@ export class SuwayomiAdapter implements ServerAdapter {
     }
   }
 
-  async getMangasByGenre(
-    filter:  Record<string, unknown>,
-    first:   number,
-    offset:  number,
-    signal?: AbortSignal,
-  ): Promise<{ items: Manga[]; hasNextPage: boolean; totalCount: number }> {
-    const data = await this.gql<{
-      mangas: {
-        nodes:      Record<string, unknown>[]
-        pageInfo:   { hasNextPage: boolean }
-        totalCount: number
-      }
-    }>(MANGAS_BY_GENRE, { filter, first, offset }, signal)
+  async getDownloadsPath(): Promise<{ downloadsPath: string; localSourcePath: string }> {
+    const data = await this.gql<{ settings: { downloadsPath: string | null; localSourcePath: string | null } }>(
+      GET_DOWNLOADS_PATH
+    )
     return {
-      items:       data.mangas.nodes.map(mapManga),
-      hasNextPage: data.mangas.pageInfo.hasNextPage,
-      totalCount:  data.mangas.totalCount,
+      downloadsPath:   data.settings.downloadsPath  ?? '',
+      localSourcePath: data.settings.localSourcePath ?? '',
     }
   }
 
+  async setDownloadsPath(path: string): Promise<void> {
+    await this.gql(SET_DOWNLOADS_PATH, { path })
+  }
+
+  async setLocalSourcePath(path: string): Promise<void> {
+    await this.gql(SET_LOCAL_SOURCE_PATH, { path })
+  }
+
+  async createBackup(): Promise<{ url: string }> {
+    const data = await this.gql<{ createBackup: { url: string } }>(CREATE_BACKUP)
+    return data.createBackup
+  }
+
+  private multipartGql<T>(query: string, file: File): Promise<T> {
+    const form = new FormData()
+    form.append('operations', JSON.stringify({ query, variables: { backup: null } }))
+    form.append('map', JSON.stringify({ '0': ['variables.backup'] }))
+    form.append('0', file, file.name)
+    const headers: Record<string, string> = { Accept: 'application/json' }
+    if (this.authHeader) headers['Authorization'] = this.authHeader
+    return fetch(`${this.baseUrl}/api/graphql`, { method: 'POST', headers, body: form })
+      .then(r => { if (!r.ok) throw new Error(`Suwayomi HTTP ${r.status}`); return r.json() })
+      .then((json: GQLResponse<T>) => { if (json.errors?.length) throw new Error(json.errors[0].message); return json.data })
+  }
+
+  async restoreBackup(file: File): Promise<{ id: string; status: RestoreStatus }> {
+    const data = await this.multipartGql<{ restoreBackup: { id: string; status: RestoreStatus } }>(RESTORE_BACKUP, file)
+    return data.restoreBackup
+  }
+
+  async validateBackup(file: File): Promise<ValidateBackupResult> {
+    const data = await this.multipartGql<{ validateBackup: ValidateBackupResult }>(VALIDATE_BACKUP, file)
+    return data.validateBackup
+  }
+
+  async pollRestoreStatus(id: string): Promise<RestoreStatus> {
+    const data = await this.gql<{ restoreStatus: RestoreStatus }>(POLL_RESTORE_STATUS, { id })
+    return data.restoreStatus
+  }
+
+  async clearCachedImages(opts: { cachedPages: boolean; cachedThumbnails: boolean; downloadedThumbnails: boolean }): Promise<void> {
+    await this.gql(CLEAR_CACHED_IMAGES, opts)
+  }
+
   async checkForUpdates(mangaIds?: string[]): Promise<UpdateResult[]> {
     if (mangaIds?.length) {
       const results: UpdateResult[] = []
diff --git a/src/lib/server-adapters/suwayomi/manga.ts b/src/lib/server-adapters/suwayomi/manga.ts
index df57d17..e089410 100644
--- a/src/lib/server-adapters/suwayomi/manga.ts
+++ b/src/lib/server-adapters/suwayomi/manga.ts
@@ -76,6 +76,12 @@ export const GET_DOWNLOADS_PATH = `
   }
 `
 
+export const POLL_RESTORE_STATUS = `
+  query PollRestoreStatus($id: String!) {
+    restoreStatus(id: $id) { mangaProgress state totalManga }
+  }
+`
+
 export const FETCH_MANGA = `
   mutation FetchManga($id: Int!) {
     fetchManga(input: { id: $id }) {
@@ -214,6 +220,15 @@ export const RESTORE_BACKUP = `
   }
 `
 
+export const VALIDATE_BACKUP = `
+  query ValidateBackup($backup: Upload!) {
+    validateBackup(input: { backup: $backup }) {
+      missingSources { id name }
+      missingTrackers { name }
+    }
+  }
+`
+
 export const FETCH_SOURCE_MANGA = `
   mutation FetchSourceManga($source: LongString!, $type: FetchSourceMangaType!, $page: Int!, $query: String, $filters: [FilterChangeInput!]) {
     fetchSourceManga(input: { source: $source, type: $type, page: $page, query: $query, filters: $filters }) {
diff --git a/src/lib/server-adapters/suwayomi/meta.ts b/src/lib/server-adapters/suwayomi/meta.ts
index d0227c1..8571f34 100644
--- a/src/lib/server-adapters/suwayomi/meta.ts
+++ b/src/lib/server-adapters/suwayomi/meta.ts
@@ -60,6 +60,28 @@ export const SET_SOCKS_PROXY = `
   }
 `
 
+export const RESTORE_BACKUP = `
+  mutation RestoreBackup($backup: Upload!) {
+    restoreBackup(input: { backup: $backup }) {
+      id status { mangaProgress state totalManga }
+    }
+  }
+`
+
+export const VALIDATE_BACKUP = `
+  query ValidateBackup($backup: Upload!) {
+    validateBackup(input: { backup: $backup }) {
+      missingSources { id name } missingTrackers { name }
+    }
+  }
+`
+
+export const CREATE_BACKUP = `
+  mutation CreateBackup {
+    createBackup(input: {}) { url }
+  }
+`
+
 export const SET_FLARE_SOLVERR = `
   mutation SetFlareSolverr(
     $flareSolverrEnabled: Boolean!
diff --git a/src/lib/server-adapters/suwayomi/tracking.ts b/src/lib/server-adapters/suwayomi/tracking.ts
index 580895b..54edf89 100644
--- a/src/lib/server-adapters/suwayomi/tracking.ts
+++ b/src/lib/server-adapters/suwayomi/tracking.ts
@@ -114,6 +114,14 @@ export const LOGIN_TRACKER_CREDENTIALS = `
   }
 `
 
+export const LOGIN_TRACKER_OAUTH = `
+  mutation LoginTrackerOAuth($trackerId: Int!, $callbackUrl: String!) {
+    loginTrackerOAuth(input: { trackerId: $trackerId, callbackUrl: $callbackUrl }) {
+      isLoggedIn
+    }
+  }
+`
+
 export const LOGOUT_TRACKER = `
   mutation LogoutTracker($trackerId: Int!) {
     logoutTracker(input: { trackerId: $trackerId }) {
diff --git a/src/lib/server-adapters/types.ts b/src/lib/server-adapters/types.ts
index 19512c2..ed20e16 100644
--- a/src/lib/server-adapters/types.ts
+++ b/src/lib/server-adapters/types.ts
@@ -128,6 +128,17 @@ export interface TrackRecordPatch {
   private?:         boolean
 }
 
+export interface RestoreStatus {
+  mangaProgress: number
+  state:         string
+  totalManga:    number
+}
+
+export interface ValidateBackupResult {
+  missingSources: { id: string; name: string }[]
+  missingTrackers: { name: string }[]
+}
+
 export interface ServerAdapter {
   connect(config: ServerConfig): Promise<void>
   getStatus(): Promise<ServerStatus>
@@ -135,6 +146,7 @@ export interface ServerAdapter {
 
   getManga(id: string, signal?: AbortSignal): Promise<Manga>
   getMangaList(filters: MangaFilters): Promise<PaginatedResult<Manga>>
+  getMangasByGenre(filter: Record<string, unknown>, first: number, offset: number, signal?: AbortSignal): Promise<{ items: Manga[]; hasNextPage: boolean; totalCount: number }>
   searchManga(query: string, sourceId?: string): Promise<Manga[]>
   fetchManga(id: string): Promise<Manga>
   addToLibrary(mangaId: string): Promise<void>
@@ -200,12 +212,24 @@ export interface ServerAdapter {
   updateTrackRecord(recordId: string, patch: TrackRecordPatch): Promise<TrackRecord>
   fetchTrackRecord(recordId: string): Promise<TrackRecord>
   syncTracking(mangaId: string): Promise<void>
+  loginTrackerOAuth(trackerId: string, callbackUrl: string): Promise<void>
+  loginTrackerCredentials(trackerId: string, username: string, password: string): Promise<void>
+  logoutTracker(trackerId: string): Promise<void>
 
   getServerSecurity(): Promise<ServerSecurity>
   setServerAuth(input: SetServerAuthInput): Promise<void>
   setSocksProxy(input: SetSocksProxyInput): Promise<void>
   setFlareSolverr(input: SetFlareSolverrInput): Promise<void>
 
+  getDownloadsPath(): Promise<{ downloadsPath: string; localSourcePath: string }>
+  setDownloadsPath(path: string): Promise<void>
+  setLocalSourcePath(path: string): Promise<void>
+  createBackup(): Promise<{ url: string }>
+  restoreBackup(file: File): Promise<{ id: string; status: RestoreStatus }>
+  validateBackup(file: File): Promise<ValidateBackupResult>
+  pollRestoreStatus(id: string): Promise<RestoreStatus>
+  clearCachedImages(opts: { cachedPages: boolean; cachedThumbnails: boolean; downloadedThumbnails: boolean }): Promise<void>
+
   checkForUpdates(mangaIds?: string[]): Promise<UpdateResult[]>
   stopLibraryUpdate(): Promise<void>
   getLibraryUpdateStatus(): Promise<LibraryUpdateProgress>
diff --git a/src/lib/state/app.svelte.ts b/src/lib/state/app.svelte.ts
index 114f272..8e4e1f3 100644
--- a/src/lib/state/app.svelte.ts
+++ b/src/lib/state/app.svelte.ts
@@ -35,6 +35,7 @@ export const appState = $state({
   history:       [] as unknown[],
   toasts:        [] as unknown[],
   appDir:        '',
+  idleSplash:    false,
 })
 
 export function setSettingsOpen(next: boolean)        { app.setSettingsOpen(next) }
diff --git a/src/routes/+layout.svelte b/src/routes/+layout.svelte
index dd3df4e..cb95f3e 100644
--- a/src/routes/+layout.svelte
+++ b/src/routes/+layout.svelte
@@ -130,6 +130,7 @@
   function onSplashReady()   { splashVisible = false }
   function onSplashUnlock()  { appState.status = 'ready'; splashVisible = false }
   function onSplashBypass()  { bypassed = true; splashVisible = false }
+  function onIdleDismiss()   { appState.idleSplash = false }
 
   function onSplashRetry() {
     import('$lib/state/boot.svelte').then(({ retryBoot }) => {
@@ -158,6 +159,10 @@
   />
 {/if}
 
+{#if appState.idleSplash}
+  <SplashScreen mode="idle" onDismiss={onIdleDismiss} />
+{/if}
+
 {#if showApp}
   {#if strippedLayout}
     {@render children()}