diff --git a/apps/docs/src/main/docs-main.ts b/apps/docs/src/main/docs-main.ts
index 77402c96e..a9a116ef4 100644
--- a/apps/docs/src/main/docs-main.ts
+++ b/apps/docs/src/main/docs-main.ts
@@ -268,7 +268,7 @@ const tMain = createI18n({
     menuWindow: '窗口',
     menuHelp: '帮助',
     menuShortcuts: '键盘快捷键',
-    menuDocsHelp: 'GenOffice Docs 帮助',
+    menuDocsHelp: 'HermesOffice Docs 帮助',
   },
   en: {
     dlgOpenDoc: 'Open Document',
@@ -368,7 +368,7 @@ const tMain = createI18n({
     menuWindow: 'Window',
     menuHelp: 'Help',
     menuShortcuts: 'Keyboard Shortcuts',
-    menuDocsHelp: 'GenOffice Docs Help',
+    menuDocsHelp: 'HermesOffice Docs Help',
   },
   ja: {
     dlgOpenDoc: '文書を開く',
@@ -468,7 +468,7 @@ const tMain = createI18n({
     menuWindow: 'ウィンドウ',
     menuHelp: 'ヘルプ',
     menuShortcuts: 'キーボードショートカット',
-    menuDocsHelp: 'GenOffice Docs ヘルプ',
+    menuDocsHelp: 'HermesOffice Docs ヘルプ',
   },
   ko: {
     dlgOpenDoc: '문서 열기',
@@ -569,7 +569,7 @@ const tMain = createI18n({
     menuWindow: '창',
     menuHelp: '도움말',
     menuShortcuts: '키보드 바로 가기',
-    menuDocsHelp: 'GenOffice Docs 도움말',
+    menuDocsHelp: 'HermesOffice Docs 도움말',
   },
   fr: {
     dlgOpenDoc: 'Ouvrir un document',
@@ -672,7 +672,7 @@ const tMain = createI18n({
     menuWindow: 'Fenêtre',
     menuHelp: 'Aide',
     menuShortcuts: 'Raccourcis clavier',
-    menuDocsHelp: 'Aide GenOffice Docs',
+    menuDocsHelp: 'Aide HermesOffice Docs',
   },
   de: {
     dlgOpenDoc: 'Dokument öffnen',
@@ -775,7 +775,7 @@ const tMain = createI18n({
     menuWindow: 'Fenster',
     menuHelp: 'Hilfe',
     menuShortcuts: 'Tastenkombinationen',
-    menuDocsHelp: 'GenOffice Docs-Hilfe',
+    menuDocsHelp: 'HermesOffice Docs-Hilfe',
   },
   es: {
     dlgOpenDoc: 'Abrir documento',
@@ -877,7 +877,7 @@ const tMain = createI18n({
     menuWindow: 'Ventana',
     menuHelp: 'Ayuda',
     menuShortcuts: 'Atajos de teclado',
-    menuDocsHelp: 'Ayuda de GenOffice Docs',
+    menuDocsHelp: 'Ayuda de HermesOffice Docs',
   },
   th: {
     dlgOpenDoc: 'เปิดเอกสาร',
@@ -977,7 +977,7 @@ const tMain = createI18n({
     menuWindow: 'หน้าต่าง',
     menuHelp: 'วิธีใช้',
     menuShortcuts: 'แป้นพิมพ์ลัด',
-    menuDocsHelp: 'วิธีใช้ GenOffice Docs',
+    menuDocsHelp: 'วิธีใช้ HermesOffice Docs',
   },
   id: {
     dlgOpenDoc: 'Buka Dokumen',
@@ -1077,7 +1077,7 @@ const tMain = createI18n({
     menuWindow: 'Jendela',
     menuHelp: 'Bantuan',
     menuShortcuts: 'Pintasan Papan Ketik',
-    menuDocsHelp: 'Bantuan GenOffice Docs',
+    menuDocsHelp: 'Bantuan HermesOffice Docs',
   },
   ru: {
     dlgOpenDoc: 'Открыть документ',
@@ -1178,7 +1178,7 @@ const tMain = createI18n({
     menuWindow: 'Окно',
     menuHelp: 'Справка',
     menuShortcuts: 'Сочетания клавиш',
-    menuDocsHelp: 'Справка GenOffice Docs',
+    menuDocsHelp: 'Справка HermesOffice Docs',
   },
   ar: {
     dlgOpenDoc: 'فتح مستند',
@@ -1279,7 +1279,7 @@ const tMain = createI18n({
     menuWindow: 'نافذة',
     menuHelp: 'تعليمات',
     menuShortcuts: 'اختصارات لوحة المفاتيح',
-    menuDocsHelp: 'تعليمات GenOffice Docs',
+    menuDocsHelp: 'تعليمات HermesOffice Docs',
   },
   pt: {
     dlgOpenDoc: 'Abrir Documento',
@@ -1380,7 +1380,7 @@ const tMain = createI18n({
     menuWindow: 'Janela',
     menuHelp: 'Ajuda',
     menuShortcuts: 'Atalhos de Teclado',
-    menuDocsHelp: 'Ajuda do GenOffice Docs',
+    menuDocsHelp: 'Ajuda do HermesOffice Docs',
   },
   it: {
     dlgOpenDoc: 'Apri documento',
@@ -1481,7 +1481,7 @@ const tMain = createI18n({
     menuWindow: 'Finestra',
     menuHelp: 'Aiuto',
     menuShortcuts: 'Scelte rapide da tastiera',
-    menuDocsHelp: 'Guida di GenOffice Docs',
+    menuDocsHelp: 'Guida di HermesOffice Docs',
   },
   pl: {
     dlgOpenDoc: 'Otwórz dokument',
@@ -1583,7 +1583,7 @@ const tMain = createI18n({
     menuWindow: 'Okno',
     menuHelp: 'Pomoc',
     menuShortcuts: 'Skróty klawiaturowe',
-    menuDocsHelp: 'Pomoc GenOffice Docs',
+    menuDocsHelp: 'Pomoc HermesOffice Docs',
   },
   cs: {
     dlgOpenDoc: 'Otevřít dokument',
@@ -1684,7 +1684,7 @@ const tMain = createI18n({
     menuWindow: 'Okno',
     menuHelp: 'Nápověda',
     menuShortcuts: 'Klávesové zkratky',
-    menuDocsHelp: 'Nápověda GenOffice Docs',
+    menuDocsHelp: 'Nápověda HermesOffice Docs',
   },
   nl: {
     dlgOpenDoc: 'Document openen',
@@ -1786,7 +1786,7 @@ const tMain = createI18n({
     menuWindow: 'Venster',
     menuHelp: 'Help',
     menuShortcuts: 'Sneltoetsen',
-    menuDocsHelp: 'GenOffice Docs Help',
+    menuDocsHelp: 'HermesOffice Docs Help',
   },
   ms: {
     dlgOpenDoc: 'Buka Dokumen',
@@ -1887,7 +1887,7 @@ const tMain = createI18n({
     menuWindow: 'Tetingkap',
     menuHelp: 'Bantuan',
     menuShortcuts: 'Pintasan Papan Kekunci',
-    menuDocsHelp: 'Bantuan GenOffice Docs',
+    menuDocsHelp: 'Bantuan HermesOffice Docs',
   },
   he: {
     dlgOpenDoc: 'פתיחת מסמך',
@@ -1986,7 +1986,7 @@ const tMain = createI18n({
     menuWindow: 'חלון',
     menuHelp: 'עזרה',
     menuShortcuts: 'קיצורי מקלדת',
-    menuDocsHelp: 'עזרה של GenOffice Docs',
+    menuDocsHelp: 'עזרה של HermesOffice Docs',
   },
   hi: {
     dlgOpenDoc: 'दस्तावेज़ खोलें',
@@ -2087,7 +2087,7 @@ const tMain = createI18n({
     menuWindow: 'विंडो',
     menuHelp: 'सहायता',
     menuShortcuts: 'कीबोर्ड शॉर्टकट',
-    menuDocsHelp: 'GenOffice Docs सहायता',
+    menuDocsHelp: 'HermesOffice Docs सहायता',
   },
   'zh-TW': {
     dlgOpenDoc: '開啟文件',
@@ -2185,7 +2185,7 @@ const tMain = createI18n({
     menuWindow: '視窗',
     menuHelp: '說明',
     menuShortcuts: '鍵盤快速鍵',
-    menuDocsHelp: 'GenOffice Docs 說明',
+    menuDocsHelp: 'HermesOffice Docs 說明',
   },
 })
 const tm = (key: Parameters<typeof tMain>[1], params?: Parameters<typeof tMain>[2]) =>
@@ -2270,7 +2270,7 @@ async function saveDialog(event: IpcMainInvokeEvent, options: SaveDialogOptions)
   return showSaveDialogWithMemory(dialog, dialogParent(event), options, defaultSaveDir())
 }
 
-/** default folder where new files land on their first (silent) save; shared with the other editors via shell. User-configurable (app-settings.json), falls back to <Documents>/GenOffice. */
+/** default folder where new files land on their first (silent) save; shared with the other editors via shell. User-configurable (app-settings.json), falls back to <Documents>/HermesOffice. */
 export function defaultSaveDir(): string {
   return configuredDefaultSaveDir(app)
 }
@@ -3379,7 +3379,7 @@ export function registerDocsIpc(): void {
   void app.whenReady().then(registerLazyMediaProtocol)
   // Node fetch (undici) direct connections get reset under VPN/tun setups; retry over Chromium's stack
   setRescueFetch((url, init) => net.fetch(url, init))
-  setAiUserAgent(`GenOffice/${app.getVersion()}`)
+  setAiUserAgent(`HermesOffice/${app.getVersion()}`)
 
   // shared with the other editor modules — last (identical) registration wins
   ipcMain.removeHandler('app:get-language')
@@ -4290,7 +4290,7 @@ interface DocsShellHooks {
   focusTab(id: string): void
   /** closes the calling tab instead of the whole shell window (Cmd+W / role:'close') */
   closeActiveTab(): void
-  /** Shell router used to open exported PDFs in a new GenOffice tab. */
+  /** Shell router used to open exported PDFs in a new HermesOffice tab. */
   openGeneratedPath?(path: string): boolean
   /** Cmd/Ctrl+O opens the shell's quick switcher instead of the file dialog */
   openQuickSwitcher?(): void
@@ -4728,7 +4728,7 @@ export function createDocsWindow(openPath?: string): BrowserWindow {
     height: 900,
     minWidth: 720,
     minHeight: 550,
-    title: 'GenOffice Docs',
+    title: 'HermesOffice Docs',
     // Word-like custom title bar (document name centered, quick-access buttons)
     ...(process.platform === 'darwin'
       ? { titleBarStyle: 'hiddenInset' as const }
@@ -5009,11 +5009,11 @@ export function startDocsStandalone(): void {
   installContextMenu(app, () => contextMenuLabels(getUiLang()))
   // dev runs must not share the packaged app's userData (recent files, AI settings)
   // or its single-instance lock — otherwise `npm run dev` silently quits whenever
-  // the installed GenOffice Docs is open and forwards its argv there instead.
+  // the installed HermesOffice Docs is open and forwards its argv there instead.
   // AI_OFFICE_USER_DATA: E2E/screenshot runs isolate userData (and the
   // single-instance lock) so parallel automation sessions don't evict each other
   if (process.env.AI_OFFICE_USER_DATA) app.setPath('userData', process.env.AI_OFFICE_USER_DATA)
-  else if (isDev) app.setPath('userData', join(app.getPath('appData'), 'GenOffice Docs Dev'))
+  else if (isDev) app.setPath('userData', join(app.getPath('appData'), 'HermesOffice Docs Dev'))
 
   const hasSingleInstanceLock = app.requestSingleInstanceLock()
   if (!hasSingleInstanceLock) {
diff --git a/apps/html/src/main/html-main.ts b/apps/html/src/main/html-main.ts
index 7d5621556..98d4f38d9 100644
--- a/apps/html/src/main/html-main.ts
+++ b/apps/html/src/main/html-main.ts
@@ -814,7 +814,7 @@ interface RuntimePaths {
   preloadPath: string
   rendererUrl?: string
   rendererFile?: string
-  /** Shell router used to open exported PDFs in a new GenOffice tab. */
+  /** Shell router used to open exported PDFs in a new HermesOffice tab. */
   openGeneratedPath?: (path: string) => boolean
 }
 
diff --git a/apps/markdown/src/main/conversion-lifecycle.ts b/apps/markdown/src/main/conversion-lifecycle.ts
index 0757ad6bb..09e775953 100644
--- a/apps/markdown/src/main/conversion-lifecycle.ts
+++ b/apps/markdown/src/main/conversion-lifecycle.ts
@@ -62,7 +62,7 @@ async function readSessionMarker(directory: string): Promise<ConversionSessionMa
 }
 
 /**
- * Removes only marked GenOffice session directories older than the TTL.
+ * Removes only marked HermesOffice session directories older than the TTL.
  * Unknown files/directories under the cache root are deliberately ignored.
  */
 export async function cleanupStaleMarkdownConversions(
diff --git a/apps/markdown/src/main/markdown-main.ts b/apps/markdown/src/main/markdown-main.ts
index 0e3697915..776973665 100644
--- a/apps/markdown/src/main/markdown-main.ts
+++ b/apps/markdown/src/main/markdown-main.ts
@@ -340,7 +340,7 @@ interface RuntimePaths {
   preloadPath: string
   rendererUrl?: string
   rendererFile?: string
-  /** Shell router used to open exported PDFs in a new GenOffice tab. */
+  /** Shell router used to open exported PDFs in a new HermesOffice tab. */
   openGeneratedPath?: (path: string) => boolean
 }
 
diff --git a/apps/pdf/src/main/generated-output.ts b/apps/pdf/src/main/generated-output.ts
index fc471b636..eb5934c60 100644
--- a/apps/pdf/src/main/generated-output.ts
+++ b/apps/pdf/src/main/generated-output.ts
@@ -1,7 +1,7 @@
 import { existsSync } from 'node:fs'
 import { basename, join } from 'node:path'
 
-/** Pick a safe, unused PDF path inside the configured GenOffice save directory. */
+/** Pick a safe, unused PDF path inside the configured HermesOffice save directory. */
 export function uniqueGeneratedPdfPath(
   dir: string,
   suggestedName: string,
diff --git a/apps/pdf/src/main/pdf-main.ts b/apps/pdf/src/main/pdf-main.ts
index 2123ef7b1..dba4ea179 100644
--- a/apps/pdf/src/main/pdf-main.ts
+++ b/apps/pdf/src/main/pdf-main.ts
@@ -474,7 +474,7 @@ interface RuntimePaths {
   preloadPath: string
   rendererUrl?: string
   rendererFile?: string
-  /** Shell router used to open generated PDFs in a new GenOffice tab. */
+  /** Shell router used to open generated PDFs in a new HermesOffice tab. */
   openGeneratedPath?: (path: string) => boolean
   /** Host-owned cross-app document creator (the shell routes DOCX into Docs). */
   createDocument?: (request: CreateDocumentRequest) => Promise<CreateDocumentResult>
@@ -531,7 +531,7 @@ async function createStandaloneDocument(
   if (request.type === 'docx') {
     return {
       ok: false,
-      error: 'Creating DOCX files requires the GenOffice shell or Docs app.',
+      error: 'Creating DOCX files requires the HermesOffice shell or Docs app.',
     }
   }
   const title = sanitizeGeneratedDocumentTitle(request.title)
diff --git a/apps/pdf/src/main/save-pdf.ts b/apps/pdf/src/main/save-pdf.ts
index 8800fb6ca..8bb03a818 100644
--- a/apps/pdf/src/main/save-pdf.ts
+++ b/apps/pdf/src/main/save-pdf.ts
@@ -177,7 +177,7 @@ function addMarkup(pdfDoc: PDFDocument, page: PDFPage, m: MarkupInput): void {
     QuadPoints: m.quads.flat(),
     C: m.color,
     F: 4, // print
-    T: 'GenOffice',
+    T: 'HermesOffice',
     P: page.ref,
     AP: { N: apRef },
   })
@@ -249,7 +249,7 @@ async function addImageStamp(
     P: page.ref,
     AP: { N: pdfDoc.context.register(ap) },
   })
-  annot.set(PDFName.of('T'), PDFHexString.fromText('GenOffice'))
+  annot.set(PDFName.of('T'), PDFHexString.fromText('HermesOffice'))
   setVisualSignatureMetadata(annot, d.formFieldName)
   appendAnnot(pdfDoc, page, pdfDoc.context.register(annot))
 }
@@ -333,7 +333,7 @@ function addDrawing(
       P: page.ref,
     })
     annot.set(PDFName.of('Contents'), PDFHexString.fromText(d.contents))
-    annot.set(PDFName.of('T'), PDFHexString.fromText(d.author || 'GenOffice'))
+    annot.set(PDFName.of('T'), PDFHexString.fromText(d.author || 'HermesOffice'))
     const when = pdfDateString(d.createdMs ?? Date.now())
     annot.set(PDFName.of('CreationDate'), PDFString.of(when))
     annot.set(PDFName.of('M'), PDFString.of(when))
@@ -420,7 +420,7 @@ function addDrawing(
   if (d.kind === 'line' || d.kind === 'arrow') {
     annot.set(PDFName.of('L'), pdfDoc.context.obj([...d.from, ...d.to]))
   }
-  annot.set(PDFName.of('T'), PDFHexString.fromText('GenOffice'))
+  annot.set(PDFName.of('T'), PDFHexString.fromText('HermesOffice'))
   if (d.kind === 'ink') setVisualSignatureMetadata(annot, d.formFieldName)
   appendAnnot(pdfDoc, page, pdfDoc.context.register(annot))
 }
diff --git a/apps/pdf/src/shared/ipc.ts b/apps/pdf/src/shared/ipc.ts
index 7bc13e575..7fb4f0912 100644
--- a/apps/pdf/src/shared/ipc.ts
+++ b/apps/pdf/src/shared/ipc.ts
@@ -185,7 +185,7 @@ export type DrawingInput =
       color: [number, number, number]
       at: [number, number]
       contents: string
-      /** Annotation author (/T); omitted → 'GenOffice' */
+      /** Annotation author (/T); omitted → 'HermesOffice' */
       author?: string
       /** Creation time (ms since epoch) → /CreationDate and /M; omitted → save time */
       createdMs?: number
diff --git a/apps/pdf/tests/note-reply-save.test.ts b/apps/pdf/tests/note-reply-save.test.ts
index b0aae5b86..51fef5623 100644
--- a/apps/pdf/tests/note-reply-save.test.ts
+++ b/apps/pdf/tests/note-reply-save.test.ts
@@ -96,10 +96,10 @@ describe('note reply save', () => {
     expect(modified instanceof PDFString && modified.decodeText()).toMatch(/^D:20\d{12}[+-]/)
   })
 
-  it('falls back to the GenOffice author when none is provided', async () => {
+  it('falls back to the HermesOffice author when none is provided', async () => {
     const { bytes } = await fixtureWithComment()
     const { bytes: out } = await applySaveRequest(bytes, request([note({ contents: 'anon' })]))
-    expect((await textAnnots(out)).find((a) => a.contents === 'anon')!.author).toBe('GenOffice')
+    expect((await textAnnots(out)).find((a) => a.contents === 'anon')!.author).toBe('HermesOffice')
   })
 
   it('links a reply to a saved comment via /IRT even with a stale object number', async () => {
diff --git a/apps/sheets/src/main/sheets-main.ts b/apps/sheets/src/main/sheets-main.ts
index 17953484b..cbe23e66b 100644
--- a/apps/sheets/src/main/sheets-main.ts
+++ b/apps/sheets/src/main/sheets-main.ts
@@ -1477,7 +1477,7 @@ interface SheetsRuntimeConfig {
   rendererFile: string
   /** absolute path to the Rust xlsx-sidecar binary */
   sidecarPath?: string | undefined
-  /** Shell router used to open exported/AI-generated files in a new GenOffice tab. */
+  /** Shell router used to open exported/AI-generated files in a new HermesOffice tab. */
   openGeneratedPath?: (path: string) => boolean
   /** Host-owned cross-app document creator (the shell routes docx/pdf/md into Docs). */
   createDocument?: (request: SheetsAiHostDocumentRequest) => Promise<WorkbookCreateDocumentResult>
@@ -1527,7 +1527,7 @@ async function createStandaloneSheetsDocument(
   request: SheetsAiHostDocumentRequest,
 ): Promise<WorkbookCreateDocumentResult> {
   if (request.type === 'docx') {
-    return { ok: false, error: 'Creating DOCX files requires the GenOffice shell or Docs app.' }
+    return { ok: false, error: 'Creating DOCX files requires the HermesOffice shell or Docs app.' }
   }
   const title = sanitizeGeneratedFileBase(request.title)
   try {
@@ -1978,7 +1978,7 @@ export async function createSheetsWindow(
     minWidth: 720,
     minHeight: 550,
     show: false,
-    title: 'GenOffice Sheets',
+    title: 'HermesOffice Sheets',
     // Traffic lights sit inside the toolbar row.
     ...(process.platform === 'darwin' ? { titleBarStyle: 'hiddenInset' as const } : {}),
     webPreferences: {
@@ -3328,7 +3328,7 @@ export function registerSheetsAiIpc(): void {
 
   // Node fetch (undici) direct connections get reset under VPN/tun setups; retry over Chromium's stack
   setRescueFetch((url, init) => net.fetch(url, init))
-  setAiUserAgent(`GenOffice/${app.getVersion()}`)
+  setAiUserAgent(`HermesOffice/${app.getVersion()}`)
 
   ipcMain.handle(IPC_CHANNELS.aiGetSettings, (event): AiSettings => {
     sessionFor(event)
diff --git a/apps/slides/src/main/ai-ipc.ts b/apps/slides/src/main/ai-ipc.ts
index 2f6fb7d76..6e310fc2f 100644
--- a/apps/slides/src/main/ai-ipc.ts
+++ b/apps/slides/src/main/ai-ipc.ts
@@ -105,7 +105,7 @@ export function registerAiIpc(): void {
   app.once('before-quit', shutdownCodexAppServers)
   // Node fetch (undici) direct connections get reset under VPN/tun setups; retry over Chromium's stack
   setRescueFetch((url, init) => net.fetch(url, init))
-  setAiUserAgent(`GenOffice/${app.getVersion()}`)
+  setAiUserAgent(`HermesOffice/${app.getVersion()}`)
 
   ipcMain.handle('ai:get-settings', (): AiSettings => {
     const stored = readJson<Partial<AiSettings> & LegacyAiSettings>(AI_SETTINGS_PATH(), {})
diff --git a/apps/slides/src/main/slides-main.ts b/apps/slides/src/main/slides-main.ts
index 3cc599df2..6f64bfcf3 100644
--- a/apps/slides/src/main/slides-main.ts
+++ b/apps/slides/src/main/slides-main.ts
@@ -1,5 +1,5 @@
 /**
- * GenOffice Slides main process — pptx parsing/render-tree building/edit application/saving all live
+ * HermesOffice Slides main process — pptx parsing/render-tree building/edit application/saving all live
  * here (Node side). The renderer only gets plain-data RenderSlide; edit intents are sent back
  * here to apply. Structure mirrors apps/docs: exports embeddable configure/register/start for
  * future shell reuse.
@@ -541,7 +541,7 @@ const AUTOSAVE_BACKOFF_TICKS = 10
 let autosaveRunning = false
 
 /**
- * Recovery drafts for never-saved decks (wcId → visible path in <Documents>/GenOffice):
+ * Recovery drafts for never-saved decks (wcId → visible path in <Documents>/HermesOffice):
  * the sha1-keyed recovery copy needs session.path, so before the first save a freeze or
  * crash used to lose everything. Removed on save, explicit discard, or clean close.
  */
@@ -832,7 +832,7 @@ async function openAndBuild(
   }
 }
 
-/** Directory where AI-generated drafts are saved: the configurable default save folder (falls back to <Documents>/GenOffice) */
+/** Directory where AI-generated drafts are saved: the configurable default save folder (falls back to <Documents>/HermesOffice) */
 function getDraftsDir(): string {
   return configuredDefaultSaveDir(app)
 }
@@ -875,7 +875,7 @@ function pickDraftPath(draftsDir: string, deckName?: string): string {
 }
 
 /**
- * Auto-save the draft to <Documents>/GenOffice/<name>.pptx after AI generation completes.
+ * Auto-save the draft to <Documents>/HermesOffice/<name>.pptx after AI generation completes.
  * Append mode reuses the session's existing draft path (overwrite); replace mode generates a
  * new filename. On successful write, update session.path, pushRecent, slidesOpenedHook.
  * On write failure, degrade silently (console.warn) without blocking the in-memory session.
@@ -4515,7 +4515,7 @@ export function createSlidesWindow(openPath?: string | null): BrowserWindow {
   const win = new BrowserWindow({
     width: 1280,
     height: 840,
-    title: 'GenOffice Slides',
+    title: 'HermesOffice Slides',
     ...(process.platform === 'darwin'
       ? { titleBarStyle: 'hiddenInset' as const }
       : {
diff --git a/packages/ai-provider/src/codex-app-server.ts b/packages/ai-provider/src/codex-app-server.ts
index 319fc2b37..de13cedd8 100644
--- a/packages/ai-provider/src/codex-app-server.ts
+++ b/packages/ai-provider/src/codex-app-server.ts
@@ -615,9 +615,9 @@ export function buildCodexAppServerPrompt(
     })),
   }
   return [
-    'Treat the payload below as the new GenOffice conversation events for this turn and follow its system instruction.',
-    'Do not use Codex tools. GenOffice will execute only the tool calls returned in the required response schema.',
-    'Put user-visible prose in text. Put requested GenOffice tool calls in toolCalls; inputJson must be a JSON-encoded object matching the listed inputSchema. Use only listed tool names. If no tool is needed, return an empty toolCalls array.',
+    'Treat the payload below as the new HermesOffice conversation events for this turn and follow its system instruction.',
+    'Do not use Codex tools. HermesOffice will execute only the tool calls returned in the required response schema.',
+    'Put user-visible prose in text. Put requested HermesOffice tool calls in toolCalls; inputJson must be a JSON-encoded object matching the listed inputSchema. Use only listed tool names. If no tool is needed, return an empty toolCalls array.',
     `Keep this one-turn response within roughly ${maxTokens} output tokens.`,
     '<genoffice_payload>',
     JSON.stringify(payload),
diff --git a/packages/ai-provider/src/fetch.ts b/packages/ai-provider/src/fetch.ts
index 970b9d1cb..da5633332 100644
--- a/packages/ai-provider/src/fetch.ts
+++ b/packages/ai-provider/src/fetch.ts
@@ -22,7 +22,7 @@ export function setRescueFetch(fn: FetchLike | null): void {
  * clients to identify themselves and flags "broad" user agents). Main
  * processes refine the default with the app version.
  */
-export const AI_DEFAULT_USER_AGENT = 'GenOffice'
+export const AI_DEFAULT_USER_AGENT = 'HermesOffice'
 
 let userAgent = AI_DEFAULT_USER_AGENT
 
diff --git a/packages/ai-provider/tests/fetch.test.ts b/packages/ai-provider/tests/fetch.test.ts
index 680552021..4d6bf07a9 100644
--- a/packages/ai-provider/tests/fetch.test.ts
+++ b/packages/ai-provider/tests/fetch.test.ts
@@ -18,16 +18,16 @@ describe('aiFetch', () => {
     vi.stubGlobal('fetch', fetchMock)
     await aiFetch('https://x/', { headers: { Authorization: 'Bearer k' } })
     const headers = sentHeaders(fetchMock)
-    expect(headers.get('user-agent')).toBe('GenOffice')
+    expect(headers.get('user-agent')).toBe('HermesOffice')
     expect(headers.get('authorization')).toBe('Bearer k')
   })
 
   it('lets the host refine the user agent and never overrides an explicit one', async () => {
     const fetchMock = vi.fn().mockResolvedValue(new Response('ok'))
     vi.stubGlobal('fetch', fetchMock)
-    setAiUserAgent('GenOffice/1.2.3')
+    setAiUserAgent('HermesOffice/1.2.3')
     await aiFetch('https://x/', {})
-    expect(sentHeaders(fetchMock).get('user-agent')).toBe('GenOffice/1.2.3')
+    expect(sentHeaders(fetchMock).get('user-agent')).toBe('HermesOffice/1.2.3')
 
     fetchMock.mockClear()
     await aiFetch('https://x/', { headers: { 'User-Agent': 'custom/9' } })
@@ -39,7 +39,7 @@ describe('aiFetch', () => {
     const rescue = vi.fn().mockResolvedValue(new Response('rescued'))
     setRescueFetch(rescue)
     await aiFetch('https://x/', {})
-    expect(sentHeaders(rescue).get('user-agent')).toBe('GenOffice')
+    expect(sentHeaders(rescue).get('user-agent')).toBe('HermesOffice')
   })
 
   it('returns the primary response without touching the rescue path', async () => {
diff --git a/packages/ai-search/src/search-tools.ts b/packages/ai-search/src/search-tools.ts
index e97da6943..64f72c0e8 100644
--- a/packages/ai-search/src/search-tools.ts
+++ b/packages/ai-search/src/search-tools.ts
@@ -43,7 +43,7 @@ export async function testSearchProvider(
     provider === 'tavily'
       ? { useGsk: false, tavilyKey: apiKey, serperKey: '', prefer: 'tavily' }
       : { useGsk: false, serperKey: apiKey, tavilyKey: '' }
-  const r = await webSearch('GenOffice', 1, options)
+  const r = await webSearch('HermesOffice', 1, options)
   if (r.method === provider) return { ok: true }
   return {
     ok: false,
diff --git a/packages/electron-utils/src/app-menu.ts b/packages/electron-utils/src/app-menu.ts
index 3cbf3e99b..a11590d75 100644
--- a/packages/electron-utils/src/app-menu.ts
+++ b/packages/electron-utils/src/app-menu.ts
@@ -45,7 +45,7 @@ const EN: Labels = {
   zoomOut: 'Zoom Out',
   fullscreen: 'Full Screen',
   help: 'Help',
-  about: 'About GenOffice',
+  about: 'About HermesOffice',
   checkUpdates: 'Check for Updates…',
   version: 'Version',
 }
@@ -70,7 +70,7 @@ const LABELS: Record<string, Labels> = {
     zoomOut: '缩小',
     fullscreen: '全屏',
     help: '帮助',
-    about: '关于 GenOffice',
+    about: '关于 HermesOffice',
     checkUpdates: '检查更新…',
     version: '版本',
   },
@@ -92,7 +92,7 @@ const LABELS: Record<string, Labels> = {
     zoomOut: '縮小',
     fullscreen: 'フルスクリーン',
     help: 'ヘルプ',
-    about: 'GenOffice について',
+    about: 'HermesOffice について',
     checkUpdates: '更新を確認…',
     version: 'バージョン',
   },
@@ -113,7 +113,7 @@ const LABELS: Record<string, Labels> = {
     zoomOut: '축소',
     fullscreen: '전체 화면',
     help: '도움말',
-    about: 'GenOffice 정보',
+    about: 'HermesOffice 정보',
     checkUpdates: '업데이트 확인…',
     version: '버전',
   },
@@ -134,7 +134,7 @@ const LABELS: Record<string, Labels> = {
     zoomOut: 'Zoom arrière',
     fullscreen: 'Plein écran',
     help: 'Aide',
-    about: 'À propos de GenOffice',
+    about: 'À propos de HermesOffice',
     checkUpdates: 'Rechercher les mises à jour…',
     version: 'Version',
   },
@@ -155,7 +155,7 @@ const LABELS: Record<string, Labels> = {
     zoomOut: 'Verkleinern',
     fullscreen: 'Vollbild',
     help: 'Hilfe',
-    about: 'Über GenOffice',
+    about: 'Über HermesOffice',
     checkUpdates: 'Nach Updates suchen…',
     version: 'Version',
   },
@@ -176,7 +176,7 @@ const LABELS: Record<string, Labels> = {
     zoomOut: 'Alejar',
     fullscreen: 'Pantalla completa',
     help: 'Ayuda',
-    about: 'Acerca de GenOffice',
+    about: 'Acerca de HermesOffice',
     checkUpdates: 'Buscar actualizaciones…',
     version: 'Versión',
   },
@@ -197,7 +197,7 @@ const LABELS: Record<string, Labels> = {
     zoomOut: 'ย่อ',
     fullscreen: 'เต็มหน้าจอ',
     help: 'วิธีใช้',
-    about: 'เกี่ยวกับ GenOffice',
+    about: 'เกี่ยวกับ HermesOffice',
     checkUpdates: 'ตรวจหาการอัปเดต…',
     version: 'เวอร์ชัน',
   },
@@ -218,7 +218,7 @@ const LABELS: Record<string, Labels> = {
     zoomOut: 'Perkecil',
     fullscreen: 'Layar Penuh',
     help: 'Bantuan',
-    about: 'Tentang GenOffice',
+    about: 'Tentang HermesOffice',
     checkUpdates: 'Periksa Pembaruan…',
     version: 'Versi',
   },
@@ -239,7 +239,7 @@ const LABELS: Record<string, Labels> = {
     zoomOut: 'Уменьшить',
     fullscreen: 'Полноэкранный режим',
     help: 'Справка',
-    about: 'О GenOffice',
+    about: 'О HermesOffice',
     checkUpdates: 'Проверить обновления…',
     version: 'Версия',
   },
@@ -260,7 +260,7 @@ const LABELS: Record<string, Labels> = {
     zoomOut: 'تصغير العرض',
     fullscreen: 'ملء الشاشة',
     help: 'تعليمات',
-    about: 'حول GenOffice',
+    about: 'حول HermesOffice',
     checkUpdates: 'التحقق من التحديثات…',
     version: 'الإصدار',
   },
@@ -281,7 +281,7 @@ const LABELS: Record<string, Labels> = {
     zoomOut: 'Reduzir',
     fullscreen: 'Tela Cheia',
     help: 'Ajuda',
-    about: 'Sobre o GenOffice',
+    about: 'Sobre o HermesOffice',
     checkUpdates: 'Procurar atualizações…',
     version: 'Versão',
   },
@@ -302,7 +302,7 @@ const LABELS: Record<string, Labels> = {
     zoomOut: 'Riduci',
     fullscreen: 'Schermo intero',
     help: 'Aiuto',
-    about: 'Informazioni su GenOffice',
+    about: 'Informazioni su HermesOffice',
     checkUpdates: 'Controlla aggiornamenti…',
     version: 'Versione',
   },
@@ -323,7 +323,7 @@ const LABELS: Record<string, Labels> = {
     zoomOut: 'Pomniejsz',
     fullscreen: 'Pełny ekran',
     help: 'Pomoc',
-    about: 'O programie GenOffice',
+    about: 'O programie HermesOffice',
     checkUpdates: 'Sprawdź aktualizacje…',
     version: 'Wersja',
   },
@@ -344,7 +344,7 @@ const LABELS: Record<string, Labels> = {
     zoomOut: 'Oddálit',
     fullscreen: 'Celá obrazovka',
     help: 'Nápověda',
-    about: 'O aplikaci GenOffice',
+    about: 'O aplikaci HermesOffice',
     checkUpdates: 'Zkontrolovat aktualizace…',
     version: 'Verze',
   },
@@ -365,7 +365,7 @@ const LABELS: Record<string, Labels> = {
     zoomOut: 'Uitzoomen',
     fullscreen: 'Volledig scherm',
     help: 'Help',
-    about: 'Over GenOffice',
+    about: 'Over HermesOffice',
     checkUpdates: 'Controleren op updates…',
     version: 'Versie',
   },
@@ -386,7 +386,7 @@ const LABELS: Record<string, Labels> = {
     zoomOut: 'Zum Keluar',
     fullscreen: 'Skrin Penuh',
     help: 'Bantuan',
-    about: 'Perihal GenOffice',
+    about: 'Perihal HermesOffice',
     checkUpdates: 'Semak Kemas Kini…',
     version: 'Versi',
   },
@@ -407,7 +407,7 @@ const LABELS: Record<string, Labels> = {
     zoomOut: 'הקטן',
     fullscreen: 'מסך מלא',
     help: 'עזרה',
-    about: 'אודות GenOffice',
+    about: 'אודות HermesOffice',
     checkUpdates: 'בדוק עדכונים…',
     version: 'גרסה',
   },
@@ -428,7 +428,7 @@ const LABELS: Record<string, Labels> = {
     zoomOut: 'ज़ूम आउट',
     fullscreen: 'पूर्ण स्क्रीन',
     help: 'सहायता',
-    about: 'GenOffice के बारे में',
+    about: 'HermesOffice के बारे में',
     checkUpdates: 'अपडेट जांचें…',
     version: 'संस्करण',
   },
@@ -449,7 +449,7 @@ const LABELS: Record<string, Labels> = {
     zoomOut: '縮小',
     fullscreen: '全螢幕',
     help: '說明',
-    about: '關於 GenOffice',
+    about: '關於 HermesOffice',
     checkUpdates: '檢查更新…',
     version: '版本',
   },
@@ -576,17 +576,18 @@ export function aboutMenuItem(labels: AppMenuLabels): MenuItemConstructorOptions
     click: async () => {
       const { app, dialog, clipboard } = await import('electron')
       const version = app.getVersion()
+      const appName = app.getName()
       const canCheck = updateCheckInvoker !== null
       const { response } = await dialog.showMessageBox({
         type: 'info',
-        title: 'GenOffice',
-        message: 'GenOffice',
+        title: appName,
+        message: appName,
         detail: `${labels.version} ${version}`,
         buttons: ['OK', labels.copy, ...(canCheck ? [labels.checkUpdates] : [])],
         defaultId: 0,
         cancelId: 0,
       })
-      if (response === 1) clipboard.writeText(`GenOffice ${version}`)
+      if (response === 1) clipboard.writeText(`${appName} ${version}`)
       if (response === 2) updateCheckInvoker?.()
     },
   }
diff --git a/packages/electron-utils/tests/app-menu.test.ts b/packages/electron-utils/tests/app-menu.test.ts
index 898a04e0a..13a02b2d9 100644
--- a/packages/electron-utils/tests/app-menu.test.ts
+++ b/packages/electron-utils/tests/app-menu.test.ts
@@ -12,6 +12,7 @@ vi.mock('electron', () => ({
   },
   app: {
     getVersion: () => '1.2.3',
+    getName: () => 'HermesOffice',
   },
   dialog: {
     showMessageBox: electronMock.showMessageBox,
@@ -227,6 +228,6 @@ describe('checkUpdatesMenuItem / manual update check wiring', () => {
   it('About dialog copy button still copies name + version', async () => {
     electronMock.showMessageBox.mockResolvedValue({ response: 1 })
     await (aboutMenuItem(en) as { click: () => Promise<void> }).click()
-    expect(electronMock.writeText).toHaveBeenCalledWith('GenOffice 1.2.3')
+    expect(electronMock.writeText).toHaveBeenCalledWith('HermesOffice 1.2.3')
   })
 })