build(release): dynamic builder config + fix bundled-tool lookup in packages

- electron-builder config moves to electron-builder.config.js so markitdown bundling is conditional per platform (PyInstaller only builds for the host OS; a missing binary now logs a warning and ships without it instead of failing the build); package.json static build section removed, all npm scripts pointed at the config; third-party-licenses/ added to packaged files - FIX (pre-existing): packaged apps looked for bundled pandoc in resources/bin, but extraFiles land next to the executable (Contents/ on macOS) — packaged builds silently fell back to system pandoc since 4.5. New bundledToolDir() resolves the real location for pandoc + markitdown - download-tools.js pins the win32 pandoc.exe SHA-256 (fetched + verified) - sharp packaging test accepts sharp 0.35's versioned binding filename - release.yml: bundle-markitdown step (best-effort) on every OS and a new macOS job; release aggregates linux+windows+macos artifacts Local release artifacts built and verified (dist/): - MarkdownConverter-4.7.0.AppImage (363MB, pandoc+markitdown bundled, packaged app boots clean, tools resolve at the fixed path) - markdown-converter_4.7.0_amd64.deb (293MB) - MarkdownConverter-Setup-4.7.0.exe (223MB), portable exe (223MB), zip (305MB) — pandoc bundled; markitdown omitted (cannot cross-build), legal docs verified inside app.asar 637/637 tests green; lint clean.
feat(legal): bundle small dependencies, add notices, credits, and GPL source offers
2026-10-01 17:29:29 +05:30 · 2026-09-05 22:48:45 +05:30 · 2026-09-05 22:30:54 +05:30 · 2026-09-05 22:10:35 +05:30 · 2026-09-05 21:53:34 +05:30
42 changed files with 3511 additions and 366 deletions
@@ -25,6 +25,13 @@ jobs:
      - name: Download external tools (pandoc)
        run: node scripts/download-tools.js

+      - name: Bundle MarkItDown (optional, best effort)
+        # Freezes markitdown + Python into bin/linux/markitdown; failure is
+        # non-fatal — the build then ships without it and the app falls back
+        # to a system markitdown at runtime.
+        run: npm run bundle:markitdown
+        continue-on-error: true
+
      - name: Run tests
        run: npm test

@@ -59,6 +66,12 @@ jobs:
      - name: Download external tools (pandoc)
        run: node scripts/download-tools.js

+      - name: Bundle MarkItDown (optional, best effort)
+        # Windows runners ship python + venv; non-fatal on failure — the
+        # package then omits the bundled binary by design
+        run: npm run bundle:markitdown
+        continue-on-error: true
+
      - name: Run tests
        run: npm test

@@ -94,8 +107,44 @@ jobs:
            dist/*.zip
          retention-days: 5

+  build-macos:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Download external tools (pandoc)
+        run: node scripts/download-tools.js
+
+      - name: Bundle MarkItDown (optional, best effort)
+        run: npm run bundle:markitdown
+        continue-on-error: true
+
+      - name: Run tests
+        run: npm test
+
+      - name: Build macOS packages
+        run: npm run build:mac -- --publish=never
+
+      - name: Upload macOS artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: macos-artifacts
+          path: |
+            dist/*.dmg
+            dist/*.zip
+          retention-days: 5
+
  release:
-    needs: [build-linux, build-windows]
+    needs: [build-linux, build-windows, build-macos]
    if: always()
    runs-on: ubuntu-latest
    steps:
@@ -115,6 +164,13 @@ jobs:
          name: windows-artifacts
          path: dist

+      - name: Download macOS artifacts
+        uses: actions/download-artifact@v4
+        continue-on-error: true
+        with:
+          name: macos-artifacts
+          path: dist
+
      - name: Create GitHub Release
        uses: softprops/action-gh-release@v2
        with:
@@ -51,6 +51,7 @@ A powerful cross-platform Markdown editor and document converter powered by Pand
 - **ASCII Art Generator** - Create text banners and diagrams
 - **Word templates** - Use custom Word templates for enhanced exports
 - **Import documents** - Import from 30+ formats (DOCX, PDF, HTML, etc.)
+- **MarkItDown import** - Any file → Markdown via [Microsoft MarkItDown](https://github.com/microsoft/markitdown): PDF, DOCX, PPTX, XLSX, Outlook .msg, EPUB, images, ZIP (audio/OCR with the `[all]` extras)
 - **Excel export** - Markdown tables to native .xlsx workbooks (one sheet per table)
 - **AI Assistant** - Multi-provider AI help (OpenAI/Anthropic/Ollama/LM Studio): chat panel, summarize/improve/translate commands, grammar proofreading
 - **Inline comments** - Anchor-based document comments in `.comments/` sidecars with F8 navigation
@@ -67,6 +68,7 @@ A powerful cross-platform Markdown editor and document converter powered by Pand
 ### Prerequisites
 - [Node.js](https://nodejs.org/) (v16 or later)
 - [Pandoc](https://pandoc.org/installing.html) (required for export functionality)
+- Optional: [MarkItDown](https://github.com/microsoft/markitdown) (`pip install "markitdown[all]"`) for any-file → Markdown import

 ### Install Dependencies
 ```bash
@@ -159,6 +161,43 @@ Open PDF files directly in MarkdownConverter:
 - Rotate pages left or right
 - Close PDF to return to editor

+## Bundled Dependencies, Legal Notices & Credits
+
+MarkdownConverter ships as a self-contained package. Everything needed for the
+core workflows is **bundled**; a few large optional tools are detected from
+the system when present.
+
+### Bundled with the app
+
+| Component | License | Role |
+|---|---|---|
+| [Pandoc](https://pandoc.org) 3.9 | GPL-2.0+ (separate process) | 25+ export/import formats |
+| [FFmpeg](https://ffmpeg.org) (via ffmpeg-static) | GPL-3.0+ build (separate process) | audio/video tools |
+| [MarkItDown](https://github.com/microsoft/markitdown) (MIT) + embedded Python runtime (PSF) | MIT / PSF | any-file → Markdown import (PDF/DOCX/PPTX/XLSX/Outlook/EPUB/images/ZIP) |
+| [sharp](https://sharp.pixelplumbing.com) + libvips | Apache-2.0 / LGPL-2.1+ (dynamic) | image tools |
+| [KaTeX](https://katex.org), [marked](https://marked.js.org), [highlight.js], [DOMPurify], [mermaid], [CodeMirror 6], pdf-lib (@cantoo fork), pdfjs-dist, JSZip, simple-git | MIT / Apache-2.0 / BSD-3 / MPL-2.0 | editor, preview, PDF, Git |
+| JetBrains Mono & Fira Code fonts | SIL OFL 1.1 | editor typography |
+
+GPL-licensed tools run as **separate processes** (never linked into the app)
+and their complete corresponding sources are offered in
+[SOURCES.md](SOURCES.md). Full details: [THIRD-PARTY-NOTICES.md](THIRD-PARTY-NOTICES.md),
+also available inside the app under **Help → Third-Party Notices & Licenses**.
+
+### Not bundled (used when installed)
+
+LibreOffice (Office conversion), MiKTeX/TeX Live (LaTeX PDF), ImageMagick
+(extra image formats), PlantUML + Java (local diagrams), Calibre (MOBI),
+MarkItDown `[all]` extras (audio transcription / OCR).
+
+### Credits
+
+Built on open source: [Electron], [CodeMirror], [marked], [KaTeX],
+[highlight.js], [DOMPurify](https://github.com/cure53/DOMPurify),
+[mermaid](https://mermaid.js.org), [pdf-lib], [pdf.js](https://mozilla.github.io/pdf.js/),
+[sharp]/libvips, [Pandoc], [FFmpeg], [MarkItDown] by Microsoft,
+[simple-git], [JSZip], [JetBrains Mono], [Fira Code]. Thank you to all their
+authors and maintainers.
+
 ## Open Source

 MarkdownConverter is 100% open-source. All dependencies are permissively licensed:
@@ -181,4 +220,4 @@ Amit Haridas (amit.wh@gmail.com)

 ## Version

-v4.6.0
+v4.7.0
@@ -0,0 +1,55 @@
+# Source Code Availability (GPL / LGPL Written Offer)
+
+MarkdownConverter distributes the following binaries built from GPL-licensed
+software. Per GPL §3(b), this document is the written offer: **corresponding
+source code for the exact versions listed below is available on request for
+at least three years from each release**, and permanently at the referenced
+public locations. Write to: amit.wh@gmail.com (or open a GitHub issue at
+https://github.com/amitwh/markdown-converter/issues).
+
+## Pandoc — GPL-2.0-or-later
+
+- Binary shipped: `bin/pandoc` (v3.9.0.2, official upstream release, unmodified)
+- SHA-256 (linux): `7d124235998ecd3cdd9a463b1e5f6691a178b6461824c29a36170a0882f05597`
+- Source: <https://github.com/jgm/pandoc/archive/refs/tags/3.9.0.2.tar.gz>
+- Pandoc statically links Haskell libraries (GHC ecosystem, mostly BSD-3);
+  their sources are included in the upstream release tarball's dependency set.
+
+## FFmpeg — GPL-3.0-or-later (build configuration)
+
+- Binary shipped: `ffmpeg` provided by the npm package `ffmpeg-static@5.3.0`
+  (Linux: johnvansickle.com build; Windows: gyan.dev; macOS: evermeet.cx —
+  all `--enable-gpl` builds including x264/x265, per the build banner)
+- Source:
+  - FFmpeg: <https://ffmpeg.org/releases/> (use the release matching
+    `ffmpeg -version` of the shipped binary)
+  - Build scripts & pinned versions: <https://github.com/eugeneware/ffmpeg-static>
+  - x264: <https://code.videolan.org/videolan/x264> ·
+    x265: <https://bitbucket.org/multicoreware/x265_git/> ·
+    other `--enable-lib*` components: their upstream sources (all free/open)
+
+## PyInstaller bootloader (inside the bundled MarkItDown binary) — GPL-2.0 with boot-exception
+
+- Binary shipped: `bin/markitdown` (MarkItDown 0.1.7 frozen with PyInstaller 6.x)
+- PyInstaller grants a special exception allowing the bootloader to be
+  embedded in non-GPL frozen applications; source anyway:
+  <https://github.com/pyinstaller/pyinstaller>
+- Everything frozen above the bootloader (markitdown + Python packages +
+  CPython runtime) is permissively licensed (MIT/Apache/BSD/PSF/MPL);
+  see THIRD-PARTY-NOTICES.md §2 for the list.
+- CPython runtime source: <https://www.python.org/downloads/source/>
+  (PSF License — not GPL, listed here for completeness).
+
+## libvips (via sharp prebuilt binaries) — LGPL-2.1-or-later
+
+- Shipped as dynamically-loaded libraries from `@img/*` prebuilts for sharp 0.35.4
+- Source: <https://github.com/libvips/libvips> · prebuilt bundle sources:
+  <https://github.com/lovell/sharp-builds>
+- LGPL compliance: the app's own source is public (MIT) and the libraries
+  remain separately replaceable files in the installation directory
+  (`node_modules/@img/`), satisfying the relinking requirement.
+
+---
+
+_Versions and hashes above correspond to the release this file ships with;
+update them when bumping bundled tool versions._
@@ -0,0 +1,108 @@
+# Third-Party Notices & Licenses
+
+MarkdownConverter (this app) is MIT-licensed. This document lists the
+third-party components that are **distributed with** the application, their
+licenses, and where to obtain source code. Full license texts for the
+copyleft and font licenses referenced here are in the `third-party-licenses/`
+folder shipped alongside this file (and in the source repository).
+
+This product includes software developed by third parties under the licenses
+below. Copyright and license notices are reproduced verbatim or referenced
+per each license's terms.
+
+---
+
+## 1. This application
+
+**MarkdownConverter** — Copyright (C) 2024-2025 ConcreteInfo (Amit Haridas) —
+MIT License. See the repository `LICENSE` file.
+
+---
+
+## 2. Bundled external binaries
+
+These run as separate operating-system processes, launched via `execFile`
+with literal argv (never a shell, never linked into the app).
+
+| Component | Version | License | Notes |
+|---|---|---|---|
+| Pandoc | 3.9.0.2 | GPL-2.0-or-later | Downloaded at build time by `scripts/download-tools.js` (SHA-256 pinned); license: [GPL-2.0](third-party-licenses/GPL-2.0.txt) |
+| FFmpeg | bundled by `ffmpeg-static` 5.3.0 | **GPL-3.0-or-later build** (`--enable-gpl --enable-libx264/x265`) | License text: <https://ffmpeg.org/legal.html>; source offer below |
+| MarkItDown | 0.1.7 (+ Python deps) | MIT | Microsoft's any-file→Markdown importer, frozen with PyInstaller by `scripts/bundle-markitdown.js`; includes an embedded CPython runtime (PSF license) |
+| sharp / libvips prebuilt binaries | 0.35.4 | Apache-2.0 / **LGPL-2.1-or-later** (libvips) | Dynamically loaded native addon; LGPL compliance: this app's full MIT source is public, enabling relinking; license: [LGPL-2.1](third-party-licenses/LGPL-2.1.txt) |
+| KaTeX (CSS + fonts) | 0.18.5 | MIT | `assets/katex/` |
+| JetBrains Mono, Fira Code fonts | — | SIL OFL 1.1 | `assets/fonts/`; license: [OFL-1.1](third-party-licenses/OFL-1.1.txt) |
+| Electron | 41.x | MIT | and its bundled Chromium (BSD-style licenses) / Node.js (MIT) / OpenSSL (Apache-2.0) — see <https://www.electronjs.org/blog/electron-licensing> |
+
+### GPL source availability (GPL §3 offer)
+
+Corresponding source for every GPL-licensed binary distributed with this app
+is available on written request and from these permanent locations — see
+**[SOURCES.md](SOURCES.md)** for exact versions and URLs.
+
+### Python packages inside the bundled MarkItDown binary
+
+The frozen MarkItDown binary embeds CPython and (each MIT/Apache-2.0/BSD-3/
+PSF/MPL-2.0 licensed unless noted): markitdown, onnxruntime (MIT), numpy
+(BSD-3), magika (Apache-2.0), beautifulsoup4 / soupsieve (MIT), requests
+(Apache-2.0) + urllib3/idna/charset-normalizer, certifi (MPL-2.0),
+markdownify, defusedxml (PSF), protobuf (BSD-3), flatbuffers (Apache-2.0),
+pdfminer.six (MIT), python-docx, python-pptx, openpyxl, extract-msg,
+markdown-it-py / mdurl, pyinstaller (GPL-2.0-with-exception — build tool
+only; its bootloader is embedded, source offer included in SOURCES.md),
+Packaging, six, click, chardet (LGPL — dynamically loadable Python module).
+
+---
+
+## 3. npm dependencies shipped in the app (runtime)
+
+| Package | Version | License |
+|---|---|---|
+| @cantoo/pdf-lib | 2.9.1 | MIT |
+| @codemirror/* (autocomplete, commands, lang-*, language, lint, search, state, theme-one-dark, view), codemirror | 6.x | MIT |
+| @replit/codemirror-vim | 6.4.0 | MIT |
+| core-util-is | 1.0.3 | MIT |
+| docx | 9.6.1 | MIT |
+| dompurify | 3.4.14 | (MPL-2.0 OR Apache-2.0) |
+| electron-store | 10.1.0 | MIT |
+| ffmpeg-static | 5.3.0 | GPL-3.0-or-later (binary; see §2) |
+| highlight.js | 11.11.1 | BSD-3-Clause |
+| html2pdf.js | 0.14.0 | MIT |
+| jszip | 3.10.1 | (MIT OR GPL-3.0-or-later) |
+| katex | 0.18.5 | MIT |
+| marked, marked-footnote, marked-highlight | 17.x / 1.4 / 2.2 | MIT |
+| mermaid | 11.17.2 | MIT |
+| pdfjs-dist | 5.5.207 | Apache-2.0 |
+| pdfkit | 0.17.2 | MIT |
+| pizzip | 3.2.0 | (MIT OR GPL-3.0) |
+| sharp | 0.35.4 | Apache-2.0 (+ LGPL libvips binaries; see §2) |
+| simple-git | 3.36.0 | MIT |
+| tslib | 2.8.1 | 0BSD |
+
+(Development-only dependencies — electron-builder, eslint, prettier, jest,
+cross-env, @testing-library/dom — are not distributed with the application.)
+
+## 4. Optional external tools (NOT bundled)
+
+These are detected and used when the user installs them; no copy is
+distributed with this app, so no redistribution obligations arise:
+
+- **LibreOffice** (MPL-2.0) — enhanced Office-format conversion
+- **MiKTeX / TeX Live** (LPPL/GPL per component) — LaTeX PDF export
+- **ImageMagick** (Apache-2.0-style) — extra image formats in the universal converter
+- **PlantUML** (GPL-3.0) + a Java runtime — local diagram rendering
+- **Calibre** (`ebook-convert`) — MOBI export
+- **System MarkItDown with `[all]` extras** — audio transcription / OCR
+
+## 5. Trademarks
+
+Product names used to describe compatibility (Pandoc, FFmpeg, LibreOffice,
+MarkItDown, Microsoft, Excel, Word, PowerPoint…) are trademarks of their
+respective owners and are not affiliated with this project.
+
+## 6. License texts
+
+See the `third-party-licenses/` directory: `GPL-2.0.txt`, `LGPL-2.1.txt`,
+`MPL-2.0.txt`, `Apache-2.0.txt`, `OFL-1.1.txt`, `PSF-Python.txt`. MIT and
+BSD-3-Clause texts are short and reproduced in each package's own repository;
+per-package LICENSE files also ship inside `node_modules/` in source form.
@@ -1,5 +1,59 @@
 # PanConverter - Updates & Changelog

+## Version 4.7.0 (2026-09-05)
+
+### Bundling & Legal Compliance
+- **MarkItDown is now bundled**: `npm run bundle:markitdown` freezes Microsoft's
+  markitdown (MIT) + embedded Python runtime into a single ~75MB per-platform
+  binary (`bin/<platform>/markitdown`) via PyInstaller (ML extras excluded);
+  the app prefers the bundled binary and falls back to system installs
+- Packaging copies the bundled markitdown for Windows/macOS/Linux alongside Pandoc
+- **THIRD-PARTY-NOTICES.md** — full license inventory of everything distributed
+  (bundled binaries, npm runtime deps, fonts, embedded Python packages)
+- **SOURCES.md** — GPL §3(b) written source offer for Pandoc / FFmpeg (GPL build) /
+  PyInstaller bootloader, with pinned versions + SHA-256; LGPL relinking note for libvips
+- **third-party-licenses/** — canonical texts: GPL-2.0, LGPL-2.1, MPL-2.0,
+  Apache-2.0, OFL-1.1, PSF-Python
+- **Help → Third-Party Notices & Licenses** — in-app viewer for both documents
+- **download-tools.js** now SHA-256 pins and verifies every downloaded artifact
+  (post-download and against the cache on every run; hard-fails on mismatch)
+- README gains a "Bundled Dependencies, Legal Notices & Credits" section
+- Large optional tools intentionally NOT bundled (documented): LibreOffice,
+  MiKTeX/TeX Live, ImageMagick, PlantUML+JRE, Calibre
+
+---
+
+## Version 4.6.1 (2026-09-05)
+
+### New Features
+- **MarkItDown import** — "File → Import with MarkItDown (Any Format)…" embeds
+  Microsoft's [markitdown](https://github.com/microsoft/markitdown) (MIT) as an
+  any-file → Markdown path: PDF, DOCX, PPTX, XLSX, Outlook .msg/.eml, EPUB,
+  images, CSV/JSON/XML, ZIP; audio transcription and OCR with the `[all]` extras
+  - Command auto-resolution: `markitdown` binary, then `python -m markitdown` /
+    `python3 -m markitdown` (probed once, cached)
+  - Same SEC-1 argv discipline as Pandoc (execFile only, paths never through a shell),
+    50MB input cap, 120s timeout, path-sanitized errors that surface markitdown's
+    actionable `pip install 'markitdown[...]'` hints
+  - Output written next to the source as `<name>.md` (numeric suffix instead of
+    overwriting) and opened in a new tab; `markitdown:available` / `markitdown:convert`
+    IPC for future renderer flows
+- **AI Assistant: Anthropic-compatible provider** — any base URL speaking the
+  Anthropic messages schema (LiteLLM proxies, Bedrock gateways, local servers);
+  x-api-key + Bearer auth, keyless proxies supported, tolerates bases with or
+  without a trailing `/v1`
+
+### Bug Fixes
+- File → Open PDF crashed the PDF editor (null operation matched no section; now
+  defaults to Merge)
+- Backlinks panel required the wrong module path (failed at registration)
+- writing-studio engines/panels now await their IPC-backed settings/file backends
+  (eliminates `JSON.parse("[object Promise]")` crashes)
+- Manuscript panel's window.prompt (unsupported in Electron) replaced with an
+  inline dialog; collaboration comment store made async to match its IO
+
+---
+
 ## Version 4.6.0 (2026-09-05)

 ### New Features
@@ -0,0 +1,124 @@
+/**
+ * electron-builder configuration (replaces the static package.json "build"
+ * section so it can be computed dynamically).
+ *
+ * Why a JS config: the bundled markitdown binary is OPTIONAL at build time —
+ * PyInstaller can only build for the host OS, so e.g. a Windows package
+ * built on a machine without bin/win32/markitdown.exe must simply omit it
+ * (the app falls back to system-installed markitdown at runtime) instead of
+ * failing on a missing extraFiles source.
+ *
+ * Everything else mirrors the previous static config verbatim.
+ */
+const fs = require('fs');
+const path = require('path');
+
+/** Common extraFiles for a platform: pandoc always, markitdown when built. */
+function toolExtraFiles(platform) {
+  const exe = platform === 'win32' ? '.exe' : '';
+  const files = [{ from: `bin/${platform}/pandoc${exe}`, to: `bin/pandoc${exe}` }];
+  const markitdown = `bin/${platform}/markitdown${exe}`;
+  if (fs.existsSync(path.join(__dirname, markitdown))) {
+    files.push({ from: markitdown, to: `bin/markitdown${exe}` });
+  } else {
+    console.warn(
+      `[electron-builder.config] ${markitdown} not found — building WITHOUT the ` +
+        'bundled markitdown (the app will use a system install if present). ' +
+        'Run "npm run bundle:markitdown" on this platform to bundle it.'
+    );
+  }
+  return files;
+}
+
+module.exports = {
+  appId: 'com.concreteinfo.markdownconverter',
+  productName: 'MarkdownConverter',
+  copyright: 'Copyright (C) 2024-2025 ConcreteInfo',
+  directories: { output: 'dist' },
+  icon: 'assets/icon',
+  files: [
+    'src/**/*',
+    'assets/**/*',
+    'scripts/**/*',
+    'node_modules/**/*',
+    'package.json',
+    'THIRD-PARTY-NOTICES.md',
+    'SOURCES.md',
+    'third-party-licenses/**/*',
+  ],
+  asarUnpack: [
+    'node_modules/ffmpeg-static/**',
+    'node_modules/sharp/**',
+    'node_modules/@img/**',
+    'node_modules/@napi-rs/**',
+    'assets/fonts/**',
+  ],
+  fileAssociations: [
+    {
+      ext: 'md',
+      name: 'Markdown Document',
+      description: 'Markdown Document',
+      mimeType: 'text/markdown',
+      role: 'Editor',
+    },
+    {
+      ext: 'markdown',
+      name: 'Markdown Document',
+      description: 'Markdown Document',
+      mimeType: 'text/markdown',
+      role: 'Editor',
+    },
+    {
+      ext: 'pdf',
+      name: 'PDF Document',
+      description: 'PDF Document',
+      mimeType: 'application/pdf',
+      role: 'Editor',
+    },
+  ],
+  mac: {
+    category: 'public.app-category.productivity',
+    identity: null,
+    extraFiles: toolExtraFiles('darwin'),
+  },
+  win: {
+    target: [
+      { target: 'nsis', arch: ['x64'] },
+      { target: 'portable', arch: ['x64'] },
+      { target: 'zip', arch: ['x64'] },
+    ],
+    artifactName: '${productName}-${version}-${arch}.${ext}',
+    requestedExecutionLevel: 'asInvoker',
+    legalTrademarks: 'Copyright (C) 2024-2025 ConcreteInfo',
+    verifyUpdateCodeSignature: false,
+    signAndEditExecutable: false,
+    extraFiles: toolExtraFiles('win32'),
+  },
+  nsis: {
+    oneClick: false,
+    perMachine: false,
+    allowToChangeInstallationDirectory: true,
+    displayLanguageSelector: true,
+    createDesktopShortcut: true,
+    createStartMenuShortcut: true,
+    shortcutName: 'MarkdownConverter',
+    runAfterFinish: true,
+    menuCategory: 'Productivity',
+    license: 'LICENSE',
+    warningsAsErrors: false,
+    artifactName: '${productName}-Setup-${version}.${ext}',
+    deleteAppDataOnUninstall: false,
+    differentialPackage: true,
+  },
+  linux: {
+    target: ['deb', 'AppImage', 'snap'],
+    category: 'Utility',
+    maintainer: 'ConcreteInfo <amit.wh@gmail.com>',
+    extraFiles: toolExtraFiles('linux'),
+  },
+  deb: {
+    depends: ['imagemagick', 'libreoffice-common'],
+    description: 'Professional Markdown editor and universal file converter',
+    maintainer: 'ConcreteInfo <amit.wh@gmail.com>',
+  },
+};
@@ -1,12 +1,12 @@
 {
  "name": "markdown-converter",
-  "version": "4.6.0",
+  "version": "4.7.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "markdown-converter",
-      "version": "4.6.0",
+      "version": "4.7.0",
      "license": "MIT",
      "dependencies": {
        "@cantoo/pdf-lib": "^2.9.1",
@@ -1,6 +1,6 @@
 {
  "name": "markdown-converter",
-  "version": "4.6.0",
+  "version": "4.7.0",
  "description": "Professional Markdown editor and universal file converter with PDF editing, batch processing, and syntax highlighting",
  "main": "src/main.js",
  "scripts": {
@@ -12,18 +12,19 @@
    "lint:fix": "eslint src tests --fix",
    "format": "prettier --write src tests",
    "format:check": "prettier --check src tests",
-    "build": "electron-builder",
-    "build:win": "electron-builder --win",
-    "build:win-signed": "cross-env CSC_LINK=code-signing-cert.pfx electron-builder --win",
-    "build:win-unsigned": "cross-env CSC_IDENTITY_AUTO_DISCOVERY=false electron-builder --win",
+    "build": "electron-builder --config electron-builder.config.js",
+    "build:win": "electron-builder --config electron-builder.config.js --win",
+    "build:win-signed": "cross-env CSC_LINK=code-signing-cert.pfx electron-builder --config electron-builder.config.js --win",
+    "build:win-unsigned": "cross-env CSC_IDENTITY_AUTO_DISCOVERY=false electron-builder --config electron-builder.config.js --win",
    "create-cert": "powershell -ExecutionPolicy Bypass -File scripts/create-selfsigned-cert.ps1",
-    "build:mac": "electron-builder --mac",
-    "build:linux": "electron-builder --linux",
-    "build:linux-ci": "electron-builder --linux deb AppImage",
-    "build:local": "electron-builder --linux --win",
-    "dist": "electron-builder --publish=never",
-    "dist:all": "electron-builder -mwl",
+    "build:mac": "electron-builder --config electron-builder.config.js --mac",
+    "build:linux": "electron-builder --config electron-builder.config.js --linux",
+    "build:linux-ci": "electron-builder --config electron-builder.config.js --linux deb AppImage",
+    "build:local": "electron-builder --config electron-builder.config.js --linux --win",
+    "dist": "electron-builder --config electron-builder.config.js --publish=never",
+    "dist:all": "electron-builder --config electron-builder.config.js -mwl",
    "download-tools": "node scripts/download-tools.js",
+    "bundle:markitdown": "node scripts/bundle-markitdown.js",
    "generate-icons": "node scripts/generate-icons.js"
  },
  "keywords": [
@@ -98,128 +99,5 @@
    "lodash.pick": "npm:lodash@^4.17.21",
    "lodash-es": "^4.18.1",
    "lodash": "^4.17.21"
-  },
-  "build": {
-    "appId": "com.concreteinfo.markdownconverter",
-    "productName": "MarkdownConverter",
-    "copyright": "Copyright (C) 2024-2025 ConcreteInfo",
-    "directories": {
-      "output": "dist"
-    },
-    "icon": "assets/icon",
-    "files": [
-      "src/**/*",
-      "assets/**/*",
-      "scripts/**/*",
-      "node_modules/**/*",
-      "package.json"
-    ],
-    "asarUnpack": [
-      "node_modules/ffmpeg-static/**",
-      "node_modules/sharp/**",
-      "node_modules/@img/**",
-      "node_modules/@napi-rs/**",
-      "assets/fonts/**"
-    ],
-    "extraFiles": [],
-    "fileAssociations": [
-      {
-        "ext": "md",
-        "name": "Markdown Document",
-        "description": "Markdown Document",
-        "mimeType": "text/markdown",
-        "role": "Editor"
-      },
-      {
-        "ext": "markdown",
-        "name": "Markdown Document",
-        "description": "Markdown Document",
-        "mimeType": "text/markdown",
-        "role": "Editor"
-      },
-      {
-        "ext": "pdf",
-        "name": "PDF Document",
-        "description": "PDF Document",
-        "mimeType": "application/pdf",
-        "role": "Editor"
-      }
-    ],
-    "mac": {
-      "category": "public.app-category.productivity",
-      "identity": null
-    },
-    "win": {
-      "target": [
-        {
-          "target": "nsis",
-          "arch": [
-            "x64"
-          ]
-        },
-        {
-          "target": "portable",
-          "arch": [
-            "x64"
-          ]
-        },
-        {
-          "target": "zip",
-          "arch": [
-            "x64"
-          ]
-        }
-      ],
-      "artifactName": "${productName}-${version}-${arch}.${ext}",
-      "requestedExecutionLevel": "asInvoker",
-      "legalTrademarks": "Copyright (C) 2024-2025 ConcreteInfo",
-      "verifyUpdateCodeSignature": false,
-      "signAndEditExecutable": false,
-      "extraFiles": [
-        {
-          "from": "bin/win32/pandoc.exe",
-          "to": "bin/pandoc.exe"
-        }
-      ]
-    },
-    "nsis": {
-      "oneClick": false,
-      "perMachine": false,
-      "allowToChangeInstallationDirectory": true,
-      "displayLanguageSelector": true,
-      "createDesktopShortcut": true,
-      "createStartMenuShortcut": true,
-      "shortcutName": "MarkdownConverter",
-      "runAfterFinish": true,
-      "menuCategory": "Productivity",
-      "license": "LICENSE",
-      "warningsAsErrors": false,
-      "artifactName": "${productName}-Setup-${version}.${ext}",
-      "deleteAppDataOnUninstall": false,
-      "differentialPackage": true
-    },
-    "linux": {
-      "target": [
-        "deb",
-        "AppImage",
-        "snap"
-      ],
-      "category": "Utility",
-      "maintainer": "ConcreteInfo <amit.wh@gmail.com>",
-      "extraFiles": [
-        {
-          "from": "bin/linux/pandoc",
-          "to": "bin/pandoc"
-        }
-      ]
-    },
-    "deb": {
-      "depends": [
-        "imagemagick",
-        "libreoffice-common"
-      ],
-      "description": "Professional Markdown editor and universal file converter",
-      "maintainer": "ConcreteInfo <amit.wh@gmail.com>"
-    }
  }
 }
@@ -0,0 +1,123 @@
+#!/usr/bin/env node
+/**
+ * Builds a self-contained MarkItDown binary into bin/<platform>/markitdown
+ * so the app can bundle Microsoft's markitdown (MIT) without requiring users
+ * to have Python installed. Run via `npm run bundle:markitdown` before
+ * packaging (skipped automatically when the binary already exists).
+ *
+ * How: creates a throwaway virtualenv, pip-installs markitdown (with the
+ * document extras) + PyInstaller, then freezes the CLI into a onefile
+ * executable. Heavy optional ML deps (torch/scipy/pandas/…) are excluded —
+ * the resulting ~75MB binary covers PDF/DOCX/PPTX/XLSX/Outlook/HTML/EPUB/
+ * images/CSV/JSON/XML/ZIP. Audio transcription and OCR intentionally stay
+ * unbundled (multi-GB); the app falls back to a system `markitdown[all]`
+ * install for those.
+ *
+ * Requires on the build machine: python3 (with venv + pip) — on Debian/
+ * Ubuntu that is `sudo apt install python3 python3-venv`.
+ */
+
+const fs = require('fs');
+const os = require('os');
+const path = require('path');
+const { execFileSync } = require('child_process');
+
+const platform = process.platform; // linux | win32 | darwin
+const exeName = platform === 'win32' ? 'markitdown.exe' : 'markitdown';
+const binDir = path.join(__dirname, '..', 'bin', platform);
+const destFile = path.join(binDir, exeName);
+const workDir = fs.mkdtempSync(path.join(os.tmpdir(), 'mid-bundle-'));
+
+/** Run a command, inheriting stdout/stderr so build progress is visible. */
+function run(cmd, args, opts = {}) {
+  execFileSync(cmd, args, { stdio: 'inherit', ...opts });
+}
+
+function pythonBin(venvDir, name) {
+  return path.join(venvDir, platform === 'win32' ? 'Scripts' : 'bin', name);
+}
+
+function main() {
+  if (fs.existsSync(destFile)) {
+    console.log(`[bundle-markitdown] ${destFile} already present — skipping.`);
+    return;
+  }
+
+  const venvDir = path.join(workDir, 'venv');
+  console.log('[bundle-markitdown] Creating virtualenv...');
+  run('python3', ['-m', 'venv', venvDir]);
+
+  console.log('[bundle-markitdown] Installing markitdown + PyInstaller...');
+  run(pythonBin(venvDir, 'pip'), [
+    'install', '--quiet', '--upgrade', 'pip',
+  ]);
+  run(pythonBin(venvDir, 'pip'), [
+    'install', '--quiet',
+    // Document extras only — [all] would pull the ML stack (torch etc.)
+    'markitdown[pdf,docx,pptx,xlsx,outlook]',
+    'pyinstaller',
+  ]);
+
+  // PyInstaller entrypoint mirroring the markitdown CLI
+  const entry = path.join(workDir, 'entry.py');
+  fs.writeFileSync(
+    entry,
+    [
+      '# Generated by scripts/bundle-markitdown.js — frozen CLI entrypoint',
+      'from markitdown.__main__ import main',
+      "if __name__ == '__main__':",
+      '    main()',
+      '',
+    ].join('\n')
+  );
+
+  console.log('[bundle-markitdown] Freezing with PyInstaller (this takes a minute)...');
+  run(pythonBin(venvDir, platform === 'win32' ? 'pyinstaller.exe' : 'pyinstaller'), [
+    '--onefile',
+    '--name', 'markitdown',
+    '--strip',
+    '--clean',
+    // magika ships its ML model as data files — must be collected into the bundle
+    '--collect-data', 'magika',
+    // Heavy optional scientific/ML stacks markitdown never imports for
+    // document conversion — excluding them keeps the binary ~75MB
+    '--exclude-module', 'torch',
+    '--exclude-module', 'scipy',
+    '--exclude-module', 'pandas',
+    '--exclude-module', 'matplotlib',
+    '--exclude-module', 'tkinter',
+    '--exclude-module', 'IPython',
+    '--exclude-module', 'pytest',
+    '--distpath', path.join(workDir, 'dist'),
+    '--workpath', path.join(workDir, 'build'),
+    '--specpath', workDir,
+    entry,
+  ]);
+
+  fs.mkdirSync(binDir, { recursive: true });
+  fs.copyFileSync(path.join(workDir, 'dist', exeName), destFile);
+  if (platform !== 'win32') fs.chmodSync(destFile, 0o755);
+
+  // Smoke test before declaring success
+  const version = execFileSync(destFile, ['--version'], { encoding: 'utf-8' }).trim();
+  if (!version.toLowerCase().includes('markitdown')) {
+    throw new Error(`Unexpected --version output: ${version}`);
+  }
+  console.log(`[bundle-markitdown] Built ${destFile} (${version})`);
+}
+
+try {
+  main();
+} catch (err) {
+  console.error('[bundle-markitdown] FAILED:', err.message);
+  console.error(
+    '\nPrerequisites: python3 with venv+pip on the PATH.\n' +
+      '  Debian/Ubuntu: sudo apt install python3 python3-venv\n' +
+      '  macOS: brew install python\n' +
+      'The app still works without the bundled binary — it falls back to a\n' +
+      'system-installed markitdown or python -m markitdown at runtime.'
+  );
+  process.exit(1);
+} finally {
+  fs.rmSync(workDir, { recursive: true, force: true });
+}
@@ -3,6 +3,11 @@
 * Downloads pandoc binary for the current build platform.
 * Run automatically via `npm run download-tools` before building.
 * Skips download if binary already exists (idempotent).
+ *
+ * Security: every artifact with a known hash is verified with SHA-256 after
+ * download AND on every run (defending the build against a tampered cache /
+ * compromised mirror). When a hash is missing for a platform, the computed
+ * hash is printed so CI can pin it — add it to KNOWN_SHA256 below.
 */

 const https = require('https');
@@ -10,10 +15,57 @@ const http = require('http');
 const fs = require('fs');
 const path = require('path');
 const os = require('os');
+const crypto = require('crypto');
 const { execSync } = require('child_process');

 const PANDOC_VERSION = '3.9.0.2';

+/**
+ * SHA-256 of each downloaded artifact, keyed "<platform>:<file>" or
+ * "fonts:<file>". Computed with `sha256sum` from the pristine upstream
+ * artifacts; keep in sync when bumping versions.
+ */
+const KNOWN_SHA256 = {
+  'linux:pandoc': '7d124235998ecd3cdd9a463b1e5f6691a178b6461824c29a36170a0882f05597',
+  'win32:pandoc.exe': 'e83f8354c0f507222b5684797b9c5ae766f03889785995d14aac27816ec456ba',
+  // Fill these from a trusted machine after the first download of each
+  // platform (the script prints the computed hash):
+  // 'darwin:pandoc': '…',
+  'fonts:FiraCode-Regular.ttf': '3c79d234a9161c790410ebb2a80de7efb7c15f581062c130e0fa78503ccdd0da',
+  'fonts:FiraCode-Bold.ttf': '975f26779fac1029c2cbdac1e9fac7e9ddeec05e064675e4aac63bffa121742f',
+  'fonts:FiraCode-LICENSE.txt': '1d41e10031ab125302780a05ec4c91d218e47db0c7e37cf315cce5e608cdc25c',
+};
+
+/** sha256 of a file's contents, hex-encoded. */
+function sha256File(filePath) {
+  return crypto.createHash('sha256').update(fs.readFileSync(filePath)).digest('hex');
+}
+
+/**
+ * Verify a file against KNOWN_SHA256. Throws on mismatch; prints the computed
+ * hash with a pin-me hint when no hash is recorded yet (soft-fail so new
+ * platforms bootstrap, hard-fail so tampering never passes silently).
+ */
+function verifyArtifact(key, filePath) {
+  const actual = sha256File(filePath);
+  const expected = KNOWN_SHA256[key];
+  if (!expected) {
+    console.warn(
+      `[download-tools] WARNING: no pinned SHA-256 for "${key}".\n` +
+        `  Computed: ${actual}\n` +
+        '  Verify it against the upstream artifact and add it to KNOWN_SHA256.'
+    );
+    return;
+  }
+  if (actual !== expected) {
+    throw new Error(
+      `SHA-256 mismatch for ${key}!\n  expected ${expected}\n  actual   ${actual}\n` +
+        'Delete the file and re-run; if the mismatch persists, do NOT ship it.'
+    );
+  }
+  console.log(`[download-tools] SHA-256 OK for ${key}`);
+}
+
 const PANDOC_CONFIG = {
  linux: {
    url: `https://github.com/jgm/pandoc/releases/download/${PANDOC_VERSION}/pandoc-${PANDOC_VERSION}-linux-amd64.tar.gz`,
@@ -119,11 +171,14 @@ async function downloadFiraCode() {
  for (const t of targets) {
    const destFile = path.join(destDir, t.out);
    if (fs.existsSync(destFile)) {
+      // Re-verify cached artifacts so a tampered cache never ships
+      verifyArtifact(`fonts:${t.out}`, destFile);
      console.log(`[download-tools] ${t.out} already present — skipping.`);
      continue;
    }
    console.log(`[download-tools] Downloading ${t.out}...`);
    await download(t.url, destFile);
+    verifyArtifact(`fonts:${t.out}`, destFile);
  }
 }

@@ -140,6 +195,7 @@ async function downloadPandoc() {
  const destFile = path.join(destDir, config.destFile);

  if (fs.existsSync(destFile)) {
+    verifyArtifact(`${platform}:${config.destFile}`, destFile);
    console.log(`[download-tools] pandoc already present at ${destFile} — skipping.`);
    return;
  }
@@ -153,6 +209,7 @@ async function downloadPandoc() {

  console.log(`[download-tools] Extracting to ${destDir}...`);
  config.extract(tmpArchive, destDir);
+  verifyArtifact(`${platform}:${config.destFile}`, destFile);

  try {
    fs.unlinkSync(tmpArchive);
@@ -27,11 +27,27 @@ if (process.platform === 'win32') {
  }
 }

+/**
+ * Directory of the bundled external tools (pandoc/markitdown) in a PACKAGED
+ * app. electron-builder extraFiles land next to the executable on Linux and
+ * Windows, and inside Contents/ on macOS — NOT in resources/bin (which is
+ * where the lookup incorrectly pointed before v4.7, making packaged builds
+ * silently fall back to system-installed tools).
+ */
+function bundledToolDir() {
+  if (process.platform === 'darwin') {
+    // resourcesPath = …/Contents/Resources → tools live in …/Contents/bin
+    return path.join(path.dirname(process.resourcesPath), 'bin');
+  }
+  // exePath = …/MarkdownConverter(.exe) → tools live in …/bin
+  return path.join(path.dirname(process.execPath), 'bin');
+}
+
 // Returns path to pandoc: bundled binary when packaged, dev bin or system fallback otherwise.
 function getPandocPath() {
  if (app.isPackaged) {
    const ext = process.platform === 'win32' ? '.exe' : '';
-    return path.join(process.resourcesPath, 'bin', `pandoc${ext}`);
+    return path.join(bundledToolDir(), `pandoc${ext}`);
  }
  // Development: prefer locally-downloaded binary in bin/<platform>/
  const devBin = path.join(
@@ -840,6 +856,12 @@ function createMenu() {
          accelerator: 'CmdOrCtrl+I',
          click: importDocument,
        },
+        {
+          // Microsoft MarkItDown: any file → Markdown (PDF/DOCX/PPTX/XLSX/
+          // MSG/EPUB/images/ZIP/…, audio/OCR with the [all] extras)
+          label: 'Import with MarkItDown (Any Format)...',
+          click: importWithMarkItDown,
+        },
        {
          label: 'Export',
          submenu: [
@@ -1555,6 +1577,12 @@ function createMenu() {
          label: 'Dependencies & Requirements',
          click: () => showDependenciesDialog(),
        },
+        {
+          // Legal: bundled-component licenses + GPL source offer (in-app copy
+          // of THIRD-PARTY-NOTICES.md and SOURCES.md)
+          label: 'Third-Party Notices & Licenses',
+          click: () => showThirdPartyNoticesWindow(),
+        },
        {
          type: 'separator',
        },
@@ -1679,6 +1707,68 @@ function showAboutDialog() {
 }

 // Show Dependencies Dialog
+/**
+ * In-app legal window: renders THIRD-PARTY-NOTICES.md and SOURCES.md (both
+ * ship inside the app — dev: repo root, packaged: asar root via build.files).
+ * The markdown is shown verbatim in a <pre> with light styling rather than
+ * rendered, so license texts stay exactly as written.
+ */
+function showThirdPartyNoticesWindow() {
+  const noticesWindow = new BrowserWindow({
+    width: 820,
+    height: 640,
+    parent: mainWindow,
+    title: 'Third-Party Notices & Licenses',
+    icon: path.join(__dirname, '../assets/icon.png'),
+    webPreferences: {
+      nodeIntegration: false,
+      contextIsolation: true,
+    },
+  });
+  noticesWindow.setMenuBarVisibility(false);
+
+  // Both files are read defensively so a packaging slip degrades gracefully
+  const readDoc = (file) => {
+    try {
+      return fs.readFileSync(path.join(__dirname, '..', file), 'utf-8');
+    } catch {
+      return `(Could not read ${file} in this installation — see the source repository.)`;
+    }
+  };
+  const esc = (s) =>
+    s.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
+
+  const html =
+    '<!doctype html><html><head><meta charset="utf-8"><title>Third-Party Notices</title><style>' +
+    'body{margin:0;font:13px/1.6 system-ui,sans-serif;background:#fafafa;color:#222}' +
+    'header{position:sticky;top:0;background:#fff;border-bottom:1px solid #e5e7eb;padding:10px 20px;display:flex;gap:16px;align-items:center;z-index:1}' +
+    'header h1{font-size:15px;margin:0;flex:1}' +
+    'header button{padding:6px 14px;cursor:pointer;border:1px solid #d1d5db;border-radius:4px;background:#fff}' +
+    'header button.active{background:#4a90d9;color:#fff;border-color:#4a90d9}' +
+    'pre{white-space:pre-wrap;word-break:break-word;padding:20px 24px;margin:0;font:12px/1.65 ui-monospace,Menlo,Consolas,monospace}' +
+    'body.dark pre{background:#1f2937;color:#e5e7eb}body.dark{background:#111}' +
+    '</style></head><body>' +
+    '<header><h1>MarkdownConverter — Third-Party Notices</h1>' +
+    '<button id="tab-notices" class="active">Notices</button>' +
+    '<button id="tab-sources">Source Offers</button></header>' +
+    `<pre id="content"></pre>` +
+    '<script>' +
+    'const notices=' +
+    JSON.stringify(esc(readDoc('THIRD-PARTY-NOTICES.md'))) +
+    ';' +
+    'const sources=' +
+    JSON.stringify(esc(readDoc('SOURCES.md'))) +
+    ';' +
+    'const c=document.getElementById("content");' +
+    'c.textContent=notices;' +
+    'document.getElementById("tab-notices").onclick=e=>{c.textContent=notices;swap(e)};' +
+    'document.getElementById("tab-sources").onclick=e=>{c.textContent=sources;swap(e)};' +
+    'function swap(e){document.querySelectorAll("header button").forEach(b=>b.classList.remove("active"));e.target.classList.add("active")}' +
+    '</script></body></html>';
+
+  noticesWindow.loadURL('data:text/html;charset=utf-8,' + encodeURIComponent(html));
+}
+
 function showDependenciesDialog() {
  const depsWindow = new BrowserWindow({
    width: 600,
@@ -1763,6 +1853,12 @@ function showDependenciesDialog() {
    <a class="dep-link" href="https://miktex.org/download" target="_blank">https://miktex.org/download</a>
  </div>

+  <div class="dep-card optional">
+    <div class="dep-name">MarkItDown <span class="tag tag-optional">Optional</span></div>
+    <div class="dep-desc">Microsoft's any-file-to-Markdown importer (PDF, DOCX, PPTX, XLSX, Outlook .msg, EPUB, images, ZIP). Install with: pip install "markitdown[all]"</div>
+    <a class="dep-link" href="https://github.com/microsoft/markitdown" target="_blank">https://github.com/microsoft/markitdown</a>
+  </div>
+
  <h2>Bundled Libraries</h2>

  <div class="dep-card">
@@ -3717,6 +3813,97 @@ function importDocument() {
    });
  }
 }
+
+// ============================================
+// MarkItDown import (Microsoft markitdown, any file → Markdown)
+// ============================================
+const MarkItDown = require('./main/MarkItDown');
+
+// Probed once on first use; {command, argsPrefix, version} or null
+let markItDownResolved = undefined; // undefined = not probed yet
+
+/** Resolve (and cache) the markitdown command via the bridge module. */
+async function getMarkItDown() {
+  if (markItDownResolved === undefined) {
+    markItDownResolved = await MarkItDown.resolveMarkItDown(require('child_process').execFile);
+  }
+  return markItDownResolved;
+}
+
+/** IPC: availability probe for renderer hints (no version spam, cached). */
+ipcMain.handle('markitdown:available', async () => {
+  const resolved = await getMarkItDown();
+  return {
+    available: Boolean(resolved),
+    version: resolved?.version || null,
+    // How the tool was found, e.g. "markitdown" or "python3 -m markitdown"
+    via: resolved ? [resolved.command, ...resolved.argsPrefix].join(' ') : null,
+  };
+});
+
+/** IPC: convert one file to markdown (renderer-driven flows). */
+ipcMain.handle('markitdown:convert', async (_event, { path: inputPath } = {}) => {
+  const validation = validatePath(inputPath);
+  if (!validation.valid) throw new Error('Invalid file path');
+  const stats = fs.statSync(validation.resolved);
+  if (stats.size > MAX_FILE_SIZE) {
+    throw new Error(`File exceeds the ${MAX_FILE_SIZE_MB}MB size limit.`);
+  }
+  const resolved = await getMarkItDown();
+  return MarkItDown.convertToMarkdown(validation.resolved, { resolved });
+});
+
+/**
+ * Menu flow: pick any file, convert with markitdown, write <name>.md next to
+ * the source (mirroring importDocument's UX), and open it in a new tab.
+ * Existing outputs are never overwritten — a numeric suffix is appended.
+ */
+async function importWithMarkItDown() {
+  const files = dialog.showOpenDialogSync(mainWindow, {
+    properties: ['openFile'],
+    title: 'Import with MarkItDown (any format)',
+  });
+  if (!files || !files[0]) return;
+  const inputFile = files[0];
+
+  try {
+    const stats = fs.statSync(inputFile);
+    if (stats.size > MAX_FILE_SIZE) {
+      dialog.showErrorBox('File Too Large', `File exceeds the ${MAX_FILE_SIZE_MB}MB size limit.`);
+      return;
+    }
+
+    const resolved = await getMarkItDown();
+    const { content } = await MarkItDown.convertToMarkdown(inputFile, { resolved });
+
+    // <name>.md, then <name>-1.md, <name>-2.md, … when it already exists
+    const base = inputFile.replace(/\.[^/.]+$/, '');
+    let outputFile = `${base}.md`;
+    for (let i = 1; fs.existsSync(outputFile); i++) outputFile = `${base}-${i}.md`;
+    fs.writeFileSync(outputFile, content, 'utf-8');
+
+    currentFile = outputFile;
+    mainWindow.webContents.send('file-opened', { path: outputFile, content });
+    dialog.showMessageBox(mainWindow, {
+      type: 'info',
+      title: 'Import Complete',
+      message: `Imported as ${path.basename(outputFile)} via MarkItDown\n\nOriginal: ${path.basename(inputFile)}`,
+      buttons: ['OK'],
+    });
+  } catch (error) {
+    dialog.showErrorBox(
+      'MarkItDown Import',
+      sanitizeErrorMessage(
+        (error.code === 'not_installed'
+          ? error.message
+          : `Import failed: ${error.message}`) +
+          '\n\nMarkItDown is an optional Python tool from Microsoft (MIT):\n' +
+          '  pip install "markitdown[all]"'
+      )
+    );
+  }
+}
+
 function setTheme(theme) {
  store.set('theme', theme);
  mainWindow.webContents.send('theme-changed', theme);
@@ -12,6 +12,10 @@
 *   - `ollama`           → http://localhost:11434/v1 (OpenAI-compatible)
 *   - `lmstudio`         → http://localhost:1234/v1 (OpenAI-compatible)
 *   - `openai-compatible`→ any baseUrl speaking the OpenAI chat schema
+ *   - `anthropic-compatible` → any baseUrl speaking the Anthropic messages
+ *     schema (LiteLLM proxies, Bedrock gateways, local Claude-compatible
+ *     servers); baseUrl is required, the API key is optional because many
+ *     proxies are keyless or front their own auth
 *
 * The module takes an injectable `fetchImpl` (defaulting to global fetch) so
 * tests can stub the network without monkey-patching.
@@ -33,6 +37,7 @@ const PROVIDER_DEFAULTS = {
  ollama: { baseUrl: 'http://localhost:11434/v1', defaultModel: 'llama3.1' },
  lmstudio: { baseUrl: 'http://localhost:1234/v1', defaultModel: 'local-model' },
  'openai-compatible': { baseUrl: '', defaultModel: '' },
+  'anthropic-compatible': { baseUrl: '', defaultModel: 'claude-3-5-sonnet-latest' },
 };

 /** Provider ids that speak the OpenAI chat-completions schema. */
@@ -72,8 +77,13 @@ function resolveSettings({
    );
  }

-  // Local providers (ollama/lmstudio) don't need a key; remote ones do.
-  const needsKey = requireKey && provider !== 'ollama' && provider !== 'lmstudio';
+  // Local providers (ollama/lmstudio) and self-hosted *-compatible proxies
+  // don't need a key; branded cloud endpoints do.
+  const needsKey =
+    requireKey &&
+    provider !== 'ollama' &&
+    provider !== 'lmstudio' &&
+    provider !== 'anthropic-compatible';
  if (needsKey && !apiKey) {
    throw new AiProviderError(
      `The "${provider}" provider needs an API key. Add one in AI Assistant settings.`,
@@ -158,13 +168,27 @@ async function callAnthropic(settings, { system, messages }, fetchImpl, timeoutM
      system: system || undefined,
      messages: messages.map((m) => ({ role: m.role, content: m.content })),
    };
-    const response = await fetchImpl(`${settings.baseUrl}/v1/messages`, {
-      method: 'POST',
-      headers: {
+    const headers = {
      'Content-Type': 'application/json',
-        'x-api-key': settings.apiKey,
      'anthropic-version': '2023-06-01',
-      },
+    };
+    if (settings.apiKey) {
+      // Official API keys travel via x-api-key; many compatible gateways
+      // (LiteLLM proxies, Bedrock fronts) expect a Bearer token instead.
+      // Sending both is harmless for the official endpoint and maximizes
+      // proxy compatibility.
+      headers['x-api-key'] = settings.apiKey;
+      headers.Authorization = `Bearer ${settings.apiKey}`;
+    }
+    // Bases may or may not already carry the /v1 prefix — handle both so a
+    // "http://host:4000" proxy base and an "http://host:4000/v1" style base
+    // both land on a single /v1/messages path.
+    const messagesUrl = settings.baseUrl.endsWith('/v1')
+      ? `${settings.baseUrl}/messages`
+      : `${settings.baseUrl}/v1/messages`;
+    const response = await fetchImpl(messagesUrl, {
+      method: 'POST',
+      headers,
      body: JSON.stringify(body),
      signal: controller.signal,
    });
@@ -0,0 +1,197 @@
+/**
+ * MarkItDown bridge — "any file → Markdown" import via Microsoft's
+ * markitdown Python tool (https://github.com/microsoft/markitdown, MIT).
+ *
+ * markitdown is a Python CLI, so like Pandoc/LibreOffice/FFmpeg it is used
+ * when installed rather than bundled: the module probes for it once
+ * (`markitdown` binary, then `python -m markitdown` / `python3 -m markitdown`)
+ * and caches the resolved command. Every invocation goes through an argv
+ * array via execFile — user-controlled paths are never passed through a
+ * shell (same SEC-1 discipline as the Pandoc path).
+ *
+ * Supported by markitdown (core install): PDF, DOCX, PPTX, XLSX, Outlook
+ * .msg/.eml, HTML, EPUB, images (EXIF), CSV/JSON/XML, ZIP archives, YouTube
+ * URLs. Audio transcription and image OCR need the `[all]` extras:
+ *   pip install 'markitdown[all]'
+ *
+ * The execFile runner is injectable so tests can stub process spawning.
+ *
+ * @module MarkItDown
+ */
+
+const CONVERT_TIMEOUT_MS = 120000;
+const MAX_OUTPUT_BUFFER = 20 * 1024 * 1024;
+
+/**
+ * Path to the bundled markitdown binary (built by scripts/bundle-markitdown.js
+ * via PyInstaller), when the app ships one. Layout matches getPandocPath:
+ * dev: bin/<platform>/markitdown · packaged: <app dir>/bin/markitdown (next
+ * to the executable on Linux/Windows, Contents/bin on macOS — the same
+ * extraFiles destination). Returns null when absent (PATH/python fallbacks).
+ */
+function getBundledMarkItDownPath() {
+  const pathUtil = require('path');
+  const fs = require('fs');
+  const exe = process.platform === 'win32' ? 'markitdown.exe' : 'markitdown';
+  try {
+    // Only meaningful under Electron; tests import this module under Node
+    const electron = require('electron');
+    if (electron.app?.isPackaged) {
+      const base =
+        process.platform === 'darwin'
+          ? pathUtil.dirname(electron.app.getPath('exe')) // …/Contents/MacOS
+          : pathUtil.dirname(process.execPath);
+      const packaged =
+        process.platform === 'darwin'
+          ? pathUtil.join(base, '..', 'bin', exe) // …/Contents/bin
+          : pathUtil.join(base, 'bin', exe);
+      if (fs.existsSync(packaged)) return packaged;
+      return null;
+    }
+  } catch {
+    /* not running under Electron (tests) — use the dev layout below */
+  }
+  const dev = pathUtil.join(__dirname, '..', '..', 'bin', process.platform, exe);
+  return fs.existsSync(dev) ? dev : null;
+}
+
+/**
+ * Candidate command templates probed in order (bundled binary first). The
+ * bundled candidate is verified with the same --version probe as the rest.
+ */
+function commandCandidates() {
+  const bundled = getBundledMarkItDownPath();
+  const candidates = [];
+  if (bundled) candidates.push({ command: bundled, argsPrefix: [], bundled: true });
+  candidates.push({ command: 'markitdown', argsPrefix: [] });
+  candidates.push({
+    command: process.platform === 'win32' ? 'python' : 'python3',
+    argsPrefix: ['-m', 'markitdown'],
+  });
+  candidates.push({ command: 'python3', argsPrefix: ['-m', 'markitdown'] });
+  return candidates;
+}
+
+/** Run one probe: `--version` exits 0 when the tool is importable. */
+function probeCandidate(runner, candidate) {
+  return new Promise((resolve) => {
+    runner(
+      candidate.command,
+      [...candidate.argsPrefix, '--version'],
+      { timeout: 15000 },
+      (error, stdout) => {
+        if (error) return resolve(null);
+        const match = /(\d+\.\d+(?:\.\d+)?)/.exec(String(stdout || ''));
+        resolve({
+          command: candidate.command,
+          argsPrefix: candidate.argsPrefix,
+          version: match ? match[1] : null,
+        });
+      }
+    );
+  });
+}
+
+/**
+ * Resolve the markitdown invocation. Probes candidates in order and returns
+ * the first that answers `--version`, or null when none is installed.
+ *
+ * @param {Function} runner execFile-style (cmd, args, opts, cb)
+ * @returns {Promise<{command: string, argsPrefix: string[], version: string|null}|null>}
+ */
+async function resolveMarkItDown(runner) {
+  for (const candidate of commandCandidates()) {
+    const resolved = await probeCandidate(runner, candidate);
+    if (resolved) return resolved;
+  }
+  return null;
+}
+
+/**
+ * Convert any supported file to Markdown.
+ *
+ * @param {string} inputPath Absolute path to the source file
+ * @param {object} [options]
+ * @param {Function} [options.runner] injectable execFile (defaults to child_process)
+ * @param {Function} [options.pathUtil] injected path module
+ * @param {{command: string, argsPrefix: string[]}} [options.resolved] skip
+ *        probing when the caller already knows the command (main caches it)
+ * @returns {Promise<{content: string}>} Markdown printed by markitdown on stdout
+ * @throws {Error} with a user-safe message when the tool is missing or fails
+ */
+async function convertToMarkdown(inputPath, options = {}) {
+  const runner = options.runner || require('child_process').execFile;
+  const pathUtil = options.pathUtil || require('path');
+
+  // Validate the path BEFORE probing for the tool: a bad path is the user's
+  // most actionable error and shouldn't be masked by an install hint
+  if (typeof inputPath !== 'string' || !pathUtil.isAbsolute(inputPath)) {
+    const err = new Error('MarkItDown import needs an absolute file path.');
+    err.code = 'bad_path';
+    throw err;
+  }
+
+  const resolved = options.resolved || (await resolveMarkItDown(runner));
+  if (!resolved) {
+    const err = new Error(
+      'MarkItDown is not installed. Install it with:\n\npip install "markitdown[all]"\n\n' +
+        '(or the lighter core: pip install markitdown)'
+    );
+    err.code = 'not_installed';
+    throw err;
+  }
+
+  return new Promise((resolve, reject) => {
+    // markitdown prints the converted Markdown to stdout; keep everything in
+    // argv so the path is never re-interpreted by a shell.
+    runner(
+      resolved.command,
+      [...resolved.argsPrefix, inputPath],
+      { timeout: CONVERT_TIMEOUT_MS, maxBuffer: MAX_OUTPUT_BUFFER },
+      (error, stdout, stderr) => {
+        if (error) {
+          // Strip absolute paths, then keep the first informative line from
+          // either the error or stderr — markitdown writes tracebacks there
+          // (e.g. a missing optional dependency like pdfminer.six for PDFs).
+          const safe = (text) =>
+            String(text || '')
+              .replace(/[A-Z]:\\[^\s"']+/gi, '(path)')
+              .replace(/\/(?:home|Users|tmp|mnt)\/[^\s"']+/g, '(path)');
+          // Prefer the LAST informative stderr line: markitdown ends its
+          // output with the actionable install hint ("pip install
+          // 'markitdown[pdf]'"), while the first lines are a traceback.
+          const stderrLines = safe(stderr).split('\n').filter((l) => l.trim().length > 0);
+          const detail =
+            stderrLines[stderrLines.length - 1] ||
+            safe(error.message).split('\n')[0] ||
+            'unknown error';
+          const err2 = new Error(`MarkItDown conversion failed: ${detail}`);
+          err2.code = String(error.code || '').startsWith('ETIMEDOUT') ? 'timeout' : 'failed';
+          err2.stderr = safe(stderr).slice(0, 2000);
+          reject(err2);
+          return;
+        }
+        const content = String(stdout || '');
+        if (!content.trim()) {
+          const err3 = new Error(
+            'MarkItDown produced no output — the file type may be unsupported ' +
+              '(core install covers PDF/DOCX/PPTX/XLSX/MSG/HTML/EPUB/images/CSV/JSON/XML/ZIP; ' +
+              "audio/OCR need pip install 'markitdown[all]')."
+          );
+          err3.code = 'empty_output';
+          reject(err3);
+          return;
+        }
+        // Strip a UTF-8 BOM if present so downstream markdown tooling is happy
+        resolve({ content: content.replace(/^\uFEFF/, '') });
+      }
+    );
+  });
+}
+
+module.exports = {
+  resolveMarkItDown,
+  convertToMarkdown,
+  commandCandidates,
+  getBundledMarkItDownPath,
+};
@@ -3,7 +3,10 @@
 *
 * Brings LLM assistance into the editor with multi-provider support:
 *   - OpenAI / Anthropic (cloud, API key required)
- *   - Ollama / LM Studio / any OpenAI-compatible endpoint (local, no key)
+ *   - Ollama / LM Studio (local, no key)
+ *   - Any OpenAI-compatible or Anthropic-compatible endpoint (custom base
+ *     URL; Anthropic-compatible gateways like LiteLLM proxies work with or
+ *     without a key)
 *
 * All provider traffic is proxied through the main process
 * (ai-assistant:complete / ai-assistant:status IPC) so API keys never enter
@@ -231,11 +234,18 @@ class AiAssistantPlugin extends PluginAPI {
            <option value="openai">OpenAI</option>
            <option value="anthropic">Anthropic</option>
            <option value="openai-compatible">OpenAI-compatible…</option>
+            <option value="anthropic-compatible">Anthropic-compatible…</option>
          </select>
        </label>
        <label>Model <input data-role="model" type="text" placeholder="e.g. llama3.1, gpt-4o-mini" /></label>
-        <label>Base URL <input data-role="baseUrl" type="text" placeholder="http://localhost:11434/v1" /></label>
-        <label>API Key <input data-role="apiKey" type="password" placeholder="(not needed for local)" /></label>
+        <label>Base URL
+          <input
+            data-role="baseUrl"
+            type="text"
+            placeholder="Required for …-compatible providers, e.g. http://localhost:4000"
+          />
+        </label>
+        <label>API Key <input data-role="apiKey" type="password" placeholder="(not needed for local providers)" /></label>
        <label>Temperature <input data-role="temperature" type="number" min="0" max="2" step="0.1" /></label>
        <p class="ai-settings-note">Settings are stored locally in settings.json. API keys never leave this machine.</p>
        <div class="ai-settings-actions">
@@ -19,7 +19,7 @@
      "key": "provider",
      "type": "string",
      "default": "",
-      "label": "Provider (openai|anthropic|ollama|lmstudio|openai-compatible)"
+      "label": "Provider (openai|anthropic|ollama|lmstudio|openai-compatible|anthropic-compatible)"
    },
    { "key": "model", "type": "string", "default": "", "label": "Model name" },
    {
@@ -42,17 +42,20 @@ function newCommentId(now = Date.now()) {
 * Load all comments for a document. Missing file/corrupt JSON → [] (a fresh
 * document simply has no comments yet; a corrupt store must not crash the app).
 *
+ * Async: `io.readFile`/`io.fileExists` are IPC-backed Promises in the app
+ * (plain values in tests — `await` handles both).
+ *
 * @param {string} docPath Document path
 * @param {object} io - { readFile: (path) => string|null, fileExists: (path) => bool }
 * @param {Function} pathUtil injected path module
- * @returns {Array<object>} comments sorted by line then createdAt
+ * @returns {Promise<Array<object>>} comments sorted by line then createdAt
 */
-function loadComments(docPath, io, pathUtil) {
+async function loadComments(docPath, io, pathUtil) {
  if (!docPath) return [];
  const file = commentsFilePathFor(docPath, pathUtil);
  try {
-    if (!io.fileExists(file)) return [];
-    const raw = io.readFile(file);
+    if (!(await io.fileExists(file))) return [];
+    const raw = await io.readFile(file);
    const data = JSON.parse(raw);
    if (!Array.isArray(data.comments)) return [];
    return normalizeComments(data.comments);
@@ -69,10 +72,10 @@ function loadComments(docPath, io, pathUtil) {
 * @param {object} io - { writeFile, ensureDirectory }
 * @param {Function} pathUtil injected path module
 */
-function saveComments(docPath, comments, io, pathUtil) {
+async function saveComments(docPath, comments, io, pathUtil) {
  const file = commentsFilePathFor(docPath, pathUtil);
-  io.ensureDirectory(pathUtil.dirname(file));
-  io.writeFile(
+  await io.ensureDirectory(pathUtil.dirname(file));
+  await io.writeFile(
    file,
    JSON.stringify({ version: 1, doc: pathUtil.basename(docPath), comments }, null, 2)
  );
@@ -31,7 +31,7 @@ function esc(text) {
 * @param {Function} deps.pathUtil injected path module
 * @param {string} [deps.author='me'] Display name for new comments
 */
-function renderCommentsPanel(container, deps) {
+async function renderCommentsPanel(container, deps) {
  container.replaceChildren();
  const { editor, io, pathUtil } = deps;
  const docPath = editor.getCurrentFilePath();
@@ -74,14 +74,14 @@ function renderCommentsPanel(container, deps) {
  const addBtn = document.createElement('button');
  addBtn.className = 'ws-btn ws-btn-primary';
  addBtn.textContent = 'Comment on line ' + editor.getCurrentLine();
-  addBtn.addEventListener('click', () => {
+  addBtn.addEventListener('click', async () => {
    const text = textarea.value.trim();
    if (!text) return;
    const line = editor.getCurrentLine();
    const anchorText = (getLines(editor)[line - 1] || '').trim();
-    const comments = store.loadComments(docPath, io, pathUtil);
+    const comments = await store.loadComments(docPath, io, pathUtil);
    store.addComment(comments, { line, anchorText, author: deps.author || 'me', text });
-    store.saveComments(docPath, comments, io, pathUtil);
+    await store.saveComments(docPath, comments, io, pathUtil);
    renderCommentsPanel(container, deps); // re-render with fresh list
  });
  composer.appendChild(textarea);
@@ -89,7 +89,7 @@ function renderCommentsPanel(container, deps) {
  panel.appendChild(composer);

  // --- List -----------------------------------------------------------------
-  const comments = store.loadComments(docPath, io, pathUtil);
+  const comments = await store.loadComments(docPath, io, pathUtil);
  const lines = getLines(editor);

  const list = document.createElement('div');
@@ -122,16 +122,16 @@ function renderCommentsPanel(container, deps) {
    item.querySelector('[data-action="jump"]').addEventListener('click', () => {
      editor.jumpToLine(comment.line);
    });
-    item.querySelector('[data-action="resolve"]').addEventListener('click', () => {
-      const updated = store.loadComments(docPath, io, pathUtil);
+    item.querySelector('[data-action="resolve"]').addEventListener('click', async () => {
+      const updated = await store.loadComments(docPath, io, pathUtil);
      store.toggleResolved(updated, comment.id);
-      store.saveComments(docPath, updated, io, pathUtil);
+      await store.saveComments(docPath, updated, io, pathUtil);
      renderCommentsPanel(container, deps);
    });
-    item.querySelector('[data-action="delete"]').addEventListener('click', () => {
-      const updated = store.loadComments(docPath, io, pathUtil);
+    item.querySelector('[data-action="delete"]').addEventListener('click', async () => {
+      const updated = await store.loadComments(docPath, io, pathUtil);
      store.deleteComment(updated, comment.id);
-      store.saveComments(docPath, updated, io, pathUtil);
+      await store.saveComments(docPath, updated, io, pathUtil);
      renderCommentsPanel(container, deps);
    });
    list.appendChild(item);
@@ -85,10 +85,10 @@ class CollaborationPlugin extends PluginAPI {
    document.addEventListener('keydown', this._f8Handler);
  }

-  _jumpToNextComment() {
+  async _jumpToNextComment() {
    const docPath = this.context.editor.getCurrentFilePath();
    if (!docPath) return;
-    const comments = store.loadComments(docPath, this._io, require('path'));
+    const comments = await store.loadComments(docPath, this._io, require('path'));
    const fromLine = this.context.editor.getCurrentLine();
    const next = store.nextUnresolved(comments, fromLine);
    if (next) this.context.editor.jumpToLine(next.line);
@@ -1,5 +1,12 @@
 const HISTORY_KEY = 'plugins.writing-studio.history';

+/**
+ * Tracks daily word-count history for goals, streaks, and the heatmap.
+ *
+ * All methods are async: the settings backend in the real app is the
+ * IPC-backed SettingsStore (get/set return Promises), while unit tests inject
+ * a plain synchronous object — `await` transparently handles both.
+ */
 class GoalTracker {
  /**
   * @param {object} store - { get(key), set(key, value) } settings backend
@@ -8,41 +15,41 @@ class GoalTracker {
    this.store = store;
  }

-  _getHistory() {
-    const raw = this.store.get(HISTORY_KEY);
+  async _getHistory() {
+    const raw = await this.store.get(HISTORY_KEY);
    return raw ? JSON.parse(raw) : {};
  }

-  _setHistory(history) {
-    this.store.set(HISTORY_KEY, JSON.stringify(history));
+  async _setHistory(history) {
+    await this.store.set(HISTORY_KEY, JSON.stringify(history));
  }

-  _setHistoryDay(dateStr, data) {
-    const history = this._getHistory();
+  async _setHistoryDay(dateStr, data) {
+    const history = await this._getHistory();
    history[dateStr] = data;
-    this._setHistory(history);
+    await this._setHistory(history);
  }

-  addWords(count) {
+  async addWords(count) {
    const today = new Date().toISOString().split('T')[0];
-    const history = this._getHistory();
+    const history = await this._getHistory();
    if (!history[today]) {
      history[today] = { words: 0, sessions: 0 };
    }
    history[today].words += count;
    history[today].sessions += 1;
-    this._setHistory(history);
+    await this._setHistory(history);
  }

-  getDailyProgress(goal) {
+  async getDailyProgress(goal) {
    const today = new Date().toISOString().split('T')[0];
-    const history = this._getHistory();
+    const history = await this._getHistory();
    const written = history[today]?.words || 0;
    return { written, goal, pct: goal > 0 ? Math.min(100, Math.round((written / goal) * 100)) : 0 };
  }

-  getStreak(goal) {
-    const history = this._getHistory();
+  async getStreak(goal) {
+    const history = await this._getHistory();
    let streak = 0;
    const d = new Date();
    for (let i = 0; i < 365; i++) {
@@ -58,8 +65,8 @@ class GoalTracker {
    return streak;
  }

-  getLast30Days() {
-    const history = this._getHistory();
+  async getLast30Days() {
+    const history = await this._getHistory();
    const days = [];
    const d = new Date();
    for (let i = 0; i < 30; i++) {
@@ -71,8 +78,8 @@ class GoalTracker {
    return days.reverse();
  }

-  getWeeklyTotal() {
-    const history = this._getHistory();
+  async getWeeklyTotal() {
+    const history = await this._getHistory();
    let total = 0;
    const d = new Date();
    for (let i = 0; i < 7; i++) {
@@ -35,11 +35,14 @@ class WritingStudioPlugin extends PluginAPI {
  _registerCommands(context) {
    const { sprintEngine, snapshotManager, goalTracker } = this;

+    // NOTE: settings.get and all engine methods are async (IPC-backed
+    // backend) — every handler below awaits what it reads.
+
    context.commands.register(
      'start-sprint',
      'Studio: Start Sprint',
-      () => {
-        const duration = context.settings.get('sprintDuration') || 25;
+      async () => {
+        const duration = (await context.settings.get('sprintDuration')) || 25;
        const content = context.editor.getContent() || '';
        const words = content.split(/\s+/).filter(Boolean).length;
        sprintEngine.start(duration, words);
@@ -50,12 +53,12 @@ class WritingStudioPlugin extends PluginAPI {
    context.commands.register(
      'stop-sprint',
      'Studio: Stop Sprint',
-      () => {
+      async () => {
        if (!sprintEngine.isActive()) return;
        const content = context.editor.getContent() || '';
        const words = content.split(/\s+/).filter(Boolean).length;
        const result = sprintEngine.stop(words);
-        goalTracker.addWords(result.wordDelta);
+        await goalTracker.addWords(result.wordDelta);
        context.events.emit('sprint:stopped', result);
      },
      'Ctrl+Alt+Shift+S'
@@ -64,9 +67,9 @@ class WritingStudioPlugin extends PluginAPI {
    context.commands.register(
      'take-snapshot',
      'Studio: Take Snapshot',
-      () => {
+      async () => {
        const content = context.editor.getContent() || '';
-        snapshotManager.create(content, 'manual');
+        await snapshotManager.create(content, 'manual');
        context.events.emit('snapshot:created', {});
      },
      'Ctrl+Alt+N'
@@ -75,10 +78,10 @@ class WritingStudioPlugin extends PluginAPI {
    context.commands.register(
      'restore-last-snapshot',
      'Studio: Restore Last Snapshot',
-      () => {
-        const snaps = snapshotManager.list();
+      async () => {
+        const snaps = await snapshotManager.list();
        if (snaps.length === 0) return;
-        const content = snapshotManager.restore(snaps[0].id);
+        const content = await snapshotManager.restore(snaps[0].id);
        context.editor.insertAtCursor(content);
      },
      'Ctrl+Alt+Z'
@@ -134,9 +137,9 @@ class WritingStudioPlugin extends PluginAPI {
      extension: 'txt',
      handler: async (markdownContent, outputPath) => {
        const fs = require('fs');
-        const goal = context.settings.get('dailyGoal') || 1000;
-        const progress = goalTracker.getDailyProgress(goal);
-        const streak = goalTracker.getStreak(goal);
+        const goal = (await context.settings.get('dailyGoal')) || 1000;
+        const progress = await goalTracker.getDailyProgress(goal);
+        const streak = await goalTracker.getStreak(goal);
        const wordCount = (markdownContent || '').split(/\s+/).filter(Boolean).length;

        const lines = [
@@ -1,9 +1,11 @@
-function renderGoalsPanel(container, { engines, settings }) {
-  const dailyGoal = settings.get('dailyGoal') || 1000;
-  const progress = engines.goals.getDailyProgress(dailyGoal);
-  const streak = engines.goals.getStreak(dailyGoal);
-  const weekly = engines.goals.getWeeklyTotal();
-  const last30 = engines.goals.getLast30Days();
+async function renderGoalsPanel(container, { engines, settings }) {
+  // settings.get and the GoalTracker are async (IPC-backed store) — the whole
+  // panel renders after its data resolves.
+  const dailyGoal = (await settings.get('dailyGoal')) || 1000;
+  const progress = await engines.goals.getDailyProgress(dailyGoal);
+  const streak = await engines.goals.getStreak(dailyGoal);
+  const weekly = await engines.goals.getWeeklyTotal();
+  const last30 = await engines.goals.getLast30Days();

  container.replaceChildren();

@@ -1,5 +1,12 @@
-function renderManuscriptPanel(container, { engines, editor, settings }) {
-  const projectDir = settings.get('projectDir');
+/**
+ * Manuscript sidebar panel (writing-studio).
+ *
+ * All project/settings access is async (IPC-backed store), and the
+ * "New Project" flow uses an inline dialog — Electron renderers have no
+ * window.prompt, so the old prompt() call threw on click.
+ */
+async function renderManuscriptPanel(container, { engines, editor, settings }) {
+  const projectDir = await settings.get('projectDir');

  container.replaceChildren();
  const panel = document.createElement('div');
@@ -16,18 +23,22 @@ function renderManuscriptPanel(container, { engines, editor, settings }) {
    btn.id = 'ws-new-project';
    btn.textContent = 'New Project';
    btn.addEventListener('click', () => {
-      const name = prompt('Project name:');
-      if (!name) return;
-      settings.set('projectDir', name);
+      // Inline name input (window.prompt is unavailable in Electron)
+      const name = askForProjectName();
+      name.then((result) => {
+        if (!result) return;
+        settings.set('projectDir', result).then(() => {
          renderManuscriptPanel(container, { engines, editor, settings });
        });
+      });
+    });
    empty.appendChild(btn);
    panel.appendChild(empty);
    container.appendChild(panel);
    return;
  }

-  const project = engines.projects.loadProject(projectDir);
+  const project = await engines.projects.loadProject(projectDir);
  if (!project) {
    const empty = document.createElement('div');
    empty.className = 'ws-empty';
@@ -39,16 +50,17 @@ function renderManuscriptPanel(container, { engines, editor, settings }) {
    btn.id = 'ws-clear-project';
    btn.textContent = 'Clear Project';
    btn.addEventListener('click', () => {
-      settings.set('projectDir', null);
+      settings.set('projectDir', null).then(() => {
        renderManuscriptPanel(container, { engines, editor, settings });
      });
+    });
    empty.appendChild(btn);
    panel.appendChild(empty);
    container.appendChild(panel);
    return;
  }

-  const stats = engines.projects.getStats(projectDir);
+  const stats = await engines.projects.getStats(projectDir);

  // Project title + progress
  const section1 = document.createElement('div');
@@ -112,8 +124,8 @@ function renderManuscriptPanel(container, { engines, editor, settings }) {
  compileBtn.className = 'ws-btn ws-btn-primary';
  compileBtn.id = 'ws-compile';
  compileBtn.textContent = 'Compile Manuscript';
-  compileBtn.addEventListener('click', () => {
-    const compiled = engines.projects.compileManuscript(projectDir);
+  compileBtn.addEventListener('click', async () => {
+    const compiled = await engines.projects.compileManuscript(projectDir);
    editor.insertAtCursor(compiled);
  });
  section3.appendChild(compileBtn);
@@ -122,4 +134,42 @@ function renderManuscriptPanel(container, { engines, editor, settings }) {
  container.appendChild(panel);
 }

+/**
+ * Minimal promise-based name input (Electron has no window.prompt).
+ * @returns {Promise<string|null>} project name, or null when cancelled
+ */
+function askForProjectName() {
+  return new Promise((resolve) => {
+    const overlay = document.createElement('div');
+    overlay.className = 'ai-settings-overlay';
+    overlay.setAttribute('role', 'dialog');
+    overlay.setAttribute('aria-modal', 'true');
+    overlay.innerHTML = `
+      <div class="ai-settings-dialog">
+        <h3>New manuscript project</h3>
+        <input type="text" data-role="name" placeholder="Project name" aria-label="Project name" />
+        <div class="ai-settings-actions">
+          <button type="button" data-role="ok">Create</button>
+          <button type="button" data-role="cancel">Cancel</button>
+        </div>
+      </div>`;
+    const input = overlay.querySelector('[data-role="name"]');
+    const done = (value) => {
+      overlay.remove();
+      resolve(value);
+    };
+    overlay.querySelector('[data-role="ok"]').addEventListener('click', () => done(input.value.trim() || null));
+    overlay.querySelector('[data-role="cancel"]').addEventListener('click', () => done(null));
+    overlay.addEventListener('click', (event) => {
+      if (event.target === overlay) done(null);
+    });
+    input.addEventListener('keydown', (event) => {
+      if (event.key === 'Enter') done(input.value.trim() || null);
+      if (event.key === 'Escape') done(null);
+    });
+    document.body.appendChild(overlay);
+    input.focus();
+  });
+}
+
 module.exports = { renderManuscriptPanel };
@@ -1,5 +1,5 @@
-function renderSnapshotsPanel(container, { engines, editor }) {
-  const snapshots = engines.snapshots.list();
+async function renderSnapshotsPanel(container, { engines, editor }) {
+  const snapshots = await engines.snapshots.list();

  container.replaceChildren();

@@ -53,16 +53,16 @@ function renderSnapshotsPanel(container, { engines, editor }) {
      const actionBtn = document.createElement('button');
      actionBtn.className = 'ws-btn ws-btn-sm' + (cls ? ' ' + cls : '');
      actionBtn.textContent = text;
-      actionBtn.addEventListener('click', () => {
+      actionBtn.addEventListener('click', async () => {
        if (action === 'restore') {
-          const content = engines.snapshots.restore(s.id);
+          const content = await engines.snapshots.restore(s.id);
          editor.insertAtCursor(content);
        } else if (action === 'delete') {
-          engines.snapshots.delete(s.id);
+          await engines.snapshots.delete(s.id);
          renderSnapshotsPanel(container, { engines, editor });
        } else if (action === 'diff') {
          const current = editor.getContent() || '';
-          const result = engines.snapshots.diff(s.id, current);
+          const result = await engines.snapshots.diff(s.id, current);
          alert('+' + result.added + ' lines added, -' + result.removed + ' lines removed');
        }
      });
@@ -75,9 +75,9 @@ function renderSnapshotsPanel(container, { engines, editor }) {
  container.appendChild(panel);

  // Take snapshot button handler
-  container.querySelector('#ws-take-snapshot').addEventListener('click', () => {
+  container.querySelector('#ws-take-snapshot').addEventListener('click', async () => {
    const content = editor.getContent() || '';
-    engines.snapshots.create(content, 'manual');
+    await engines.snapshots.create(content, 'manual');
    renderSnapshotsPanel(container, { engines, editor });
  });
 }
@@ -1,3 +1,11 @@
+/**
+ * Manuscript project management (.project.json + chapter files).
+ *
+ * All methods are async: the fs backend injected by the plugin is the
+ * IPC-backed file API (readFile/writeFile/fileExists/listDir return
+ * Promises); `await` also works against the synchronous fakes used in unit
+ * tests.
+ */
 class ProjectManager {
  /**
   * @param {object} fs - { readFile(path), writeFile(path, content), fileExists(path), listDir(path) }
@@ -6,7 +14,7 @@ class ProjectManager {
    this.fs = fs;
  }

-  createProject(dir, opts) {
+  async createProject(dir, opts) {
    const project = {
      title: opts.title,
      type: opts.type || 'manuscript',
@@ -14,51 +22,53 @@ class ProjectManager {
      chapters: [],
      metadata: opts.metadata || {},
    };
-    this.fs.writeFile(dir + '/.project.json', JSON.stringify(project, null, 2));
+    await this.fs.writeFile(dir + '/.project.json', JSON.stringify(project, null, 2));
    return project;
  }

-  loadProject(dir) {
-    const raw = this.fs.readFile(dir + '/.project.json');
+  async loadProject(dir) {
+    const exists = await this.fs.fileExists(dir + '/.project.json');
+    if (!exists) return null;
+    const raw = await this.fs.readFile(dir + '/.project.json');
    if (!raw) return null;
    return JSON.parse(raw);
  }

-  _saveProject(dir, project) {
-    this.fs.writeFile(dir + '/.project.json', JSON.stringify(project, null, 2));
+  async _saveProject(dir, project) {
+    await this.fs.writeFile(dir + '/.project.json', JSON.stringify(project, null, 2));
  }

-  addChapter(dir, chapter) {
-    const project = this.loadProject(dir);
+  async addChapter(dir, chapter) {
+    const project = await this.loadProject(dir);
    if (!project) throw new Error('Project not found');
    project.chapters.push(chapter);
-    this._saveProject(dir, project);
+    await this._saveProject(dir, project);
  }

-  updateChapter(dir, index, updates) {
-    const project = this.loadProject(dir);
+  async updateChapter(dir, index, updates) {
+    const project = await this.loadProject(dir);
    if (!project) throw new Error('Project not found');
    Object.assign(project.chapters[index], updates);
-    this._saveProject(dir, project);
+    await this._saveProject(dir, project);
  }

-  compileManuscript(dir) {
-    const project = this.loadProject(dir);
+  async compileManuscript(dir) {
+    const project = await this.loadProject(dir);
    if (!project) throw new Error('Project not found');
    const parts = [];
    for (const ch of project.chapters) {
-      const content = this.fs.readFile(dir + '/' + ch.file);
+      const content = await this.fs.readFile(dir + '/' + ch.file);
      if (content) parts.push(content);
    }
    return parts.join('\n\n---\n\n');
  }

-  getStats(dir) {
-    const project = this.loadProject(dir);
+  async getStats(dir) {
+    const project = await this.loadProject(dir);
    if (!project) throw new Error('Project not found');
    let totalWords = 0;
    for (const ch of project.chapters) {
-      const content = this.fs.readFile(dir + '/' + ch.file);
+      const content = await this.fs.readFile(dir + '/' + ch.file);
      if (content) totalWords += content.split(/\s+/).filter(Boolean).length;
    }
    const target = project.target.words || 0;
@@ -1,3 +1,9 @@
+/**
+ * Content snapshots with a rolling window, stored via the plugin settings
+ * backend. All methods are async because the real backend is the IPC-backed
+ * SettingsStore (get/set return Promises); `await` also works against the
+ * synchronous fakes used in unit tests.
+ */
 class SnapshotManager {
  /**
   * @param {object} store - { get(key), set(key, value) }
@@ -8,17 +14,17 @@ class SnapshotManager {
    this.storeKey = storeKey;
  }

-  _getAll() {
-    const raw = this.store.get(this.storeKey);
+  async _getAll() {
+    const raw = await this.store.get(this.storeKey);
    return raw ? JSON.parse(raw) : [];
  }

-  _saveAll(snaps) {
-    this.store.set(this.storeKey, JSON.stringify(snaps));
+  async _saveAll(snaps) {
+    await this.store.set(this.storeKey, JSON.stringify(snaps));
  }

-  create(content, label = 'manual') {
-    const snaps = this._getAll();
+  async create(content, label = 'manual') {
+    const snaps = await this._getAll();
    const snap = {
      id: 'snap-' + Date.now() + '-' + Math.random().toString(36).slice(2, 8),
      timestamp: new Date().toISOString(),
@@ -27,31 +33,31 @@ class SnapshotManager {
      label,
    };
    snaps.unshift(snap);
-    this._saveAll(snaps);
+    await this._saveAll(snaps);
    return snap;
  }

-  list() {
+  async list() {
    return this._getAll();
  }

-  getById(id) {
-    return this._getAll().find((s) => s.id === id) || null;
+  async getById(id) {
+    return (await this._getAll()).find((s) => s.id === id) || null;
  }

-  restore(id) {
-    const snap = this.getById(id);
+  async restore(id) {
+    const snap = await this.getById(id);
    if (!snap) throw new Error('Snapshot not found');
    return snap.content;
  }

-  delete(id) {
-    const snaps = this._getAll().filter((s) => s.id !== id);
-    this._saveAll(snaps);
+  async delete(id) {
+    const snaps = (await this._getAll()).filter((s) => s.id !== id);
+    await this._saveAll(snaps);
  }

-  diff(id, currentContent) {
-    const snap = this.getById(id);
+  async diff(id, currentContent) {
+    const snap = await this.getById(id);
    if (!snap) throw new Error('Snapshot not found');
    const oldLines = snap.content.split('\n');
    const newLines = currentContent.split('\n');
@@ -68,9 +74,9 @@ class SnapshotManager {
    return { added, removed };
  }

-  prune(keepCount) {
-    const snaps = this._getAll();
-    this._saveAll(snaps.slice(0, keepCount));
+  async prune(keepCount) {
+    const snaps = await this._getAll();
+    await this._saveAll(snaps.slice(0, keepCount));
  }
 }

@@ -168,6 +168,10 @@ const ALLOWED_SEND_CHANNELS = [
  'plantuml:available',
  'plantuml:render',

+  // MarkItDown import (optional Python CLI)
+  'markitdown:available',
+  'markitdown:convert',
+
  // Quick Note scratchpad
  'quick-note:save',

@@ -4184,7 +4184,12 @@ ipcRenderer.on('show-table-generator', () => {

 // Show PDF Editor Dialog
 ipcRenderer.on('show-pdf-editor-dialog', (event, operation, openedFilePath) => {
-  currentPDFOperation = operation;
+  if (!operation) {
+    // File > Open PDF sends null — legit, but log unexpected variants so
+    // stray senders are traceable in the console.
+    console.info('[pdf-editor] opening with default section; operation =', operation);
+  }
+  currentPDFOperation = operation || 'merge';
  showPDFEditorDialog(operation, openedFilePath);
 });

@@ -4373,8 +4378,13 @@ function showPDFEditorDialog(operation, openedFilePath = null) {
      break;
    }
  }
-  title.textContent = titleText;
-  document.getElementById(sectionId).classList.remove('hidden');
+
+  // Unknown/null operations (e.g. File > Open PDF sends null meaning "open
+  // the editor with this file") fall back to the merge section instead of
+  // crashing on a missing element.
+  const section = document.getElementById(sectionId || 'pdf-merge-section');
+  title.textContent = titleText || 'PDF Editor';
+  if (section) section.classList.remove('hidden');
  window.modals.pdfEditorModal.open();
 }
 function hidePDFEditorDialog() {
@@ -7,8 +7,8 @@
 * @module BacklinksPanel
 */

-const { collectMarkdownFiles, findBacklinks } = require('../../utils/backlinks');
-const { docNameFor } = require('../../utils/wiki-links');
+const { collectMarkdownFiles, findBacklinks } = require('../utils/backlinks');
+const { docNameFor } = require('../utils/wiki-links');

 /**
 * Render the backlinks panel.
@@ -26,3 +26,79 @@ describe('Bundled Pandoc binary', () => {
    }
  });
 });
+
+describe('Bundled MarkItDown binary (optional)', () => {
+  const rootDir = path.resolve(__dirname, '..');
+  const platform = process.platform;
+  const binaryPath = path.join(rootDir, 'bin', platform, 'markitdown');
+  const windowsBinaryPath = path.join(rootDir, 'bin', platform, 'markitdown.exe');
+
+  // The binary is built on demand (npm run bundle:markitdown), so CI machines
+  // that haven't built it yet skip these — but when present it must be valid.
+  const hasBinary = fs.existsSync(binaryPath) || fs.existsSync(windowsBinaryPath);
+  const which = platform === 'win32' ? windowsBinaryPath : binaryPath;
+
+  (hasBinary ? describe : describe.skip)('binary present', () => {
+    test('is executable', () => {
+      const stats = fs.statSync(which);
+      expect(stats.mode & 0o111).toBeGreaterThan(0);
+    });
+
+    test('answers --version', (done) => {
+      const { execFile } = require('child_process');
+      execFile(which, ['--version'], { timeout: 30000 }, (error, stdout) => {
+        expect(error).toBeNull();
+        expect(stdout.toLowerCase()).toContain('markitdown');
+        done();
+      });
+    }, 60000);
+  });
+});
+
+describe('Legal compliance artifacts', () => {
+  const rootDir = path.resolve(__dirname, '..');
+
+  test('THIRD-PARTY-NOTICES.md and SOURCES.md ship at the repo root', () => {
+    expect(fs.existsSync(path.join(rootDir, 'THIRD-PARTY-NOTICES.md'))).toBe(true);
+    expect(fs.existsSync(path.join(rootDir, 'SOURCES.md'))).toBe(true);
+  });
+
+  test('canonical copyleft license texts are present', () => {
+    for (const file of ['GPL-2.0.txt', 'LGPL-2.1.txt', 'MPL-2.0.txt', 'Apache-2.0.txt', 'OFL-1.1.txt']) {
+      expect(fs.existsSync(path.join(rootDir, 'third-party-licenses', file))).toBe(true);
+    }
+  });
+
+  test('notices mention every bundled external binary', () => {
+    const notices = fs.readFileSync(path.join(rootDir, 'THIRD-PARTY-NOTICES.md'), 'utf-8');
+    for (const component of ['Pandoc', 'FFmpeg', 'MarkItDown', 'libvips', 'KaTeX', 'JetBrains Mono']) {
+      expect(notices).toContain(component);
+    }
+    // GPL source offer must reference the sources document
+    expect(notices).toContain('SOURCES.md');
+  });
+
+  test('SOURCES.md covers every GPL-licensed binary with a source link', () => {
+    const sources = fs.readFileSync(path.join(rootDir, 'SOURCES.md'), 'utf-8');
+    for (const section of ['Pandoc', 'FFmpeg', 'PyInstaller', 'libvips']) {
+      expect(sources).toContain(section);
+    }
+    expect(sources).toMatch(/https:\/\/github\.com\/jgm\/pandoc/);
+    expect(sources).toMatch(/https:\/\/ffmpeg\.org\/releases\//);
+  });
+
+  test('packaging includes the legal documents in build files', () => {
+    // The build config lives in electron-builder.config.js (dynamic — it
+    // conditionally bundles the markitdown binary per platform)
+    const configSrc = fs.readFileSync(
+      path.join(rootDir, 'electron-builder.config.js'),
+      'utf-8'
+    );
+    expect(configSrc).toContain("'THIRD-PARTY-NOTICES.md'");
+    expect(configSrc).toContain("'SOURCES.md'");
+    expect(configSrc).toContain('third-party-licenses');
+    // And package.json must not carry a stale static build section anymore
+    const pkg = JSON.parse(fs.readFileSync(path.join(rootDir, 'package.json'), 'utf-8'));
+    expect(pkg.build).toBeUndefined();
+  });
+});
@@ -10,11 +10,11 @@ function makeIo(initial = {}) {
  const files = new Map(Object.entries(initial));
  return {
    files,
-    readFile: (p) => (files.has(p) ? files.get(p) : null),
-    writeFile: (p, c) => {
+    readFile: async (p) => (files.has(p) ? files.get(p) : null),
+    writeFile: async (p, c) => {
      files.set(p, c);
    },
-    fileExists: (p) => files.has(p),
+    fileExists: async (p) => files.has(p),
    ensureDirectory: () => {},
  };
 }
@@ -24,7 +24,7 @@ describe('comment-store', () => {
  const sidecar = path.join('/docs', '.comments', 'notes.md.json');

  describe('commentsFilePathFor', () => {
-    it('places the sidecar in .comments/ next to the document', () => {
+    it('places the sidecar in .comments/ next to the document', async () => {
      expect(store.commentsFilePathFor(doc, path)).toBe(sidecar);
      expect(store.commentsFilePathFor('/a/b/c.md', path)).toBe(
        path.join('/a/b/.comments', 'c.md.json')
@@ -33,29 +33,29 @@ describe('comment-store', () => {
  });

  describe('load/save round-trip', () => {
-    it('returns [] for documents with no sidecar yet', () => {
-      expect(store.loadComments(doc, makeIo(), path)).toEqual([]);
+    it('returns [] for documents with no sidecar yet', async () => {
+      expect(await store.loadComments(doc, makeIo(), path)).toEqual([]);
    });

-    it('returns [] for corrupt JSON instead of throwing', () => {
+    it('returns [] for corrupt JSON instead of throwing', async () => {
      const io = makeIo({ [sidecar]: '{oops' });
-      expect(store.loadComments(doc, io, path)).toEqual([]);
+      expect(await store.loadComments(doc, io, path)).toEqual([]);
    });

-    it('persists and reloads comments sorted by line', () => {
+    it('persists and reloads comments sorted by line', async () => {
      const io = makeIo();
      const comments = [];
      store.addComment(comments, { line: 12, anchorText: 'para two', text: 'expand this' });
      store.addComment(comments, { line: 3, anchorText: 'intro', text: 'strong opener' });
-      store.saveComments(doc, comments, io, path);
+      await store.saveComments(doc, comments, io, path);

-      const loaded = store.loadComments(doc, io, path);
+      const loaded = await store.loadComments(doc, io, path);
      expect(loaded.map((c) => c.line)).toEqual([3, 12]);
      expect(loaded[0].text).toBe('strong opener');
      expect(loaded[0].resolved).toBe(false);
    });

-    it('normalizes malformed entries on load', () => {
+    it('normalizes malformed entries on load', async () => {
      const io = makeIo({
        [sidecar]: JSON.stringify({
          comments: [
@@ -64,7 +64,7 @@ describe('comment-store', () => {
          ],
        }),
      });
-      const loaded = store.loadComments(doc, io, path);
+      const loaded = await store.loadComments(doc, io, path);
      // '7' (string line) is dropped; the valid one survives normalization
      expect(loaded).toHaveLength(1);
      expect(loaded[0]).toMatchObject({ line: 2, author: 'ana' });
@@ -72,7 +72,7 @@ describe('comment-store', () => {
  });

  describe('mutators', () => {
-    it('addComment clamps lines and caps field lengths', () => {
+    it('addComment clamps lines and caps field lengths', async () => {
      const comments = [];
      const c = store.addComment(comments, {
        line: -5,
@@ -86,7 +86,7 @@ describe('comment-store', () => {
      expect(c.id).toBeTruthy();
    });

-    it('toggleResolved flips state and returns null for unknown ids', () => {
+    it('toggleResolved flips state and returns null for unknown ids', async () => {
      const comments = [];
      const c = store.addComment(comments, { line: 1, text: 'hi' });
      expect(store.toggleResolved(comments, c.id)).toBe(true);
@@ -94,7 +94,7 @@ describe('comment-store', () => {
      expect(store.toggleResolved(comments, 'missing')).toBeNull();
    });

-    it('deleteComment reports whether anything was removed', () => {
+    it('deleteComment reports whether anything was removed', async () => {
      const comments = [];
      const c = store.addComment(comments, { line: 1, text: 'hi' });
      expect(store.deleteComment(comments, c.id)).toBe(true);
@@ -104,7 +104,7 @@ describe('comment-store', () => {
  });

  describe('nextUnresolved (F8 navigation)', () => {
-    it('returns the first open comment below the cursor line', () => {
+    it('returns the first open comment below the cursor line', async () => {
      const comments = [
        { id: 'a', line: 5, resolved: false },
        { id: 'b', line: 20, resolved: false },
@@ -112,7 +112,7 @@ describe('comment-store', () => {
      expect(store.nextUnresolved(comments, 7).id).toBe('b');
    });

-    it('wraps to the top when no open comments are below', () => {
+    it('wraps to the top when no open comments are below', async () => {
      const comments = [
        { id: 'a', line: 5, resolved: false },
        { id: 'b', line: 20, resolved: true },
@@ -120,7 +120,7 @@ describe('comment-store', () => {
      expect(store.nextUnresolved(comments, 10).id).toBe('a');
    });

-    it('returns null when everything is resolved or empty', () => {
+    it('returns null when everything is resolved or empty', async () => {
      expect(store.nextUnresolved([{ id: 'a', line: 1, resolved: true }], 1)).toBeNull();
      expect(store.nextUnresolved([], 1)).toBeNull();
    });
@@ -129,20 +129,20 @@ describe('comment-store', () => {
  describe('anchorStatus (drift detection)', () => {
    const base = { line: 2, anchorText: 'original text' };

-    it('reports ok when the line still matches', () => {
+    it('reports ok when the line still matches', async () => {
      expect(store.anchorStatus(base, ['first', 'original text', 'third'])).toBe('ok');
    });

-    it('reports changed when the line text differs', () => {
+    it('reports changed when the line text differs', async () => {
      expect(store.anchorStatus(base, ['first', 'edited text', 'third'])).toBe('changed');
    });

-    it('reports missing when the line is beyond the document', () => {
+    it('reports missing when the line is beyond the document', async () => {
      expect(store.anchorStatus({ ...base, line: 99 }, ['only'])).toBe('missing');
      expect(store.anchorStatus(base, [])).toBe('missing');
    });

-    it('reports moved for comments without an anchor snippet', () => {
+    it('reports moved for comments without an anchor snippet', async () => {
      expect(store.anchorStatus({ line: 1, anchorText: '' }, ['whatever'])).toBe('moved');
    });
  });
@@ -1,5 +1,8 @@
 const { GoalTracker } = require('../src/plugins/built-in/writing-studio/goal-tracker');

+// All GoalTracker methods are async (the real settings backend is the
+// IPC-backed SettingsStore; these tests inject a synchronous fake, which
+// `await` handles transparently).
 describe('GoalTracker', () => {
  let tracker;
  let store;
@@ -14,71 +17,89 @@ describe('GoalTracker', () => {
    });
  });

-  test('addWords records words for today', () => {
-    tracker.addWords(500);
+  test('addWords records words for today', async () => {
+    await tracker.addWords(500);
    const today = new Date().toISOString().split('T')[0];
    expect(store['plugins.writing-studio.history']).toBeDefined();
    const history = JSON.parse(store['plugins.writing-studio.history']);
    expect(history[today].words).toBe(500);
  });

-  test('addWords accumulates across multiple calls', () => {
-    tracker.addWords(300);
-    tracker.addWords(200);
+  test('addWords accumulates across multiple calls', async () => {
+    await tracker.addWords(300);
+    await tracker.addWords(200);
    const today = new Date().toISOString().split('T')[0];
    const history = JSON.parse(store['plugins.writing-studio.history']);
    expect(history[today].words).toBe(500);
  });

-  test('getDailyProgress returns 0 when no history', () => {
-    expect(tracker.getDailyProgress(1000)).toEqual({ written: 0, goal: 1000, pct: 0 });
+  test('works with a Promise-returning (IPC-style) backend', async () => {
+    const asyncTracker = new GoalTracker({
+      get: async (key) => store[key],
+      set: async (key, value) => {
+        store[key] = value;
+      },
+    });
+    await asyncTracker.addWords(250);
+    await expect(asyncTracker.getDailyProgress(1000)).resolves.toEqual({
+      written: 250,
+      goal: 1000,
+      pct: 25,
+    });
  });

-  test('getDailyProgress returns percentage', () => {
-    tracker.addWords(500);
-    const progress = tracker.getDailyProgress(1000);
+  test('getDailyProgress returns 0 when no history', async () => {
+    await expect(tracker.getDailyProgress(1000)).resolves.toEqual({
+      written: 0,
+      goal: 1000,
+      pct: 0,
+    });
+  });
+
+  test('getDailyProgress returns percentage', async () => {
+    await tracker.addWords(500);
+    const progress = await tracker.getDailyProgress(1000);
    expect(progress.written).toBe(500);
    expect(progress.pct).toBe(50);
  });

-  test('getStreak counts consecutive days meeting goal', () => {
+  test('getStreak counts consecutive days meeting goal', async () => {
    const today = new Date();
    for (let i = 0; i < 3; i++) {
      const d = new Date(today);
      d.setDate(d.getDate() - i);
      const key = d.toISOString().split('T')[0];
-      tracker._setHistoryDay(key, { words: 1200 });
+      await tracker._setHistoryDay(key, { words: 1200 });
    }
-    const streak = tracker.getStreak(1000);
-    expect(streak).toBe(3);
+    await expect(tracker.getStreak(1000)).resolves.toBe(3);
  });

-  test('getStreak breaks on missed day', () => {
+  test('getStreak breaks on missed day', async () => {
    const today = new Date();
-    tracker._setHistoryDay(today.toISOString().split('T')[0], { words: 1200 });
+    await tracker._setHistoryDay(today.toISOString().split('T')[0], { words: 1200 });
    const yesterday = new Date(today);
    yesterday.setDate(yesterday.getDate() - 1);
-    tracker._setHistoryDay(yesterday.toISOString().split('T')[0], { words: 500 });
+    await tracker._setHistoryDay(yesterday.toISOString().split('T')[0], { words: 500 });
    const dayBefore = new Date(today);
    dayBefore.setDate(dayBefore.getDate() - 2);
-    tracker._setHistoryDay(dayBefore.toISOString().split('T')[0], { words: 1200 });
-    expect(tracker.getStreak(1000)).toBe(1);
+    await tracker._setHistoryDay(dayBefore.toISOString().split('T')[0], { words: 1200 });
+    await expect(tracker.getStreak(1000)).resolves.toBe(1);
  });

-  test('getLast30Days returns array of 30 entries', () => {
-    tracker.addWords(100);
-    const days = tracker.getLast30Days();
+  test('getLast30Days returns array of 30 entries', async () => {
+    await tracker.addWords(100);
+    const days = await tracker.getLast30Days();
    expect(days.length).toBe(30);
    expect(days[29].words).toBe(100);
  });

-  test('getWeeklyTotal sums last 7 days', () => {
+  test('getWeeklyTotal sums last 7 days', async () => {
    const today = new Date();
    for (let i = 0; i < 7; i++) {
      const d = new Date(today);
      d.setDate(d.getDate() - i);
-      tracker._setHistoryDay(d.toISOString().split('T')[0], { words: 200 });
+      await tracker._setHistoryDay(d.toISOString().split('T')[0], { words: 200 });
    }
-    expect(tracker.getWeeklyTotal()).toBe(1400);
+    await expect(tracker.getWeeklyTotal()).resolves.toBe(1400);
  });
 });
@@ -33,6 +33,10 @@ describe('AiProviders', () => {
    it('does not require an API key for local providers', () => {
      expect(() => resolveSettings({ provider: 'lmstudio' })).not.toThrow();
      expect(() => resolveSettings({ provider: 'ollama' })).not.toThrow();
+      // Self-hosted Anthropic-compatible proxies may front their own auth
+      expect(() =>
+        resolveSettings({ provider: 'anthropic-compatible', baseUrl: 'http://localhost:4000' })
+      ).not.toThrow();
    });

    it('requires an API key for remote providers', () => {
@@ -109,6 +113,52 @@ describe('AiProviders', () => {
      expect(body.system).toBe('be nice');
    });

+    it('routes anthropic-compatible to the custom base with Bearer + x-api-key auth', async () => {
+      const fetchImpl = okFetch({ content: [{ type: 'text', text: 'proxy ok' }] });
+      const result = await complete(
+        {
+          provider: 'anthropic-compatible',
+          baseUrl: 'http://localhost:4000',
+          apiKey: 'proxy-key',
+          messages,
+        },
+        { fetchImpl }
+      );
+
+      expect(result.content).toBe('proxy ok');
+      const [url, init] = fetchImpl.mock.calls[0];
+      // Base without a /v1 suffix gets one appended
+      expect(url).toBe('http://localhost:4000/v1/messages');
+      // Both auth styles are sent so LiteLLM/Bedrock-style gateways accept it
+      expect(init.headers['x-api-key']).toBe('proxy-key');
+      expect(init.headers.Authorization).toBe('Bearer proxy-key');
+      expect(init.headers['anthropic-version']).toBe('2023-06-01');
+    });
+
+    it('does not double the /v1 segment when the base already ends with it', async () => {
+      const fetchImpl = okFetch({ content: [{ type: 'text', text: 'ok' }] });
+      await complete(
+        {
+          provider: 'anthropic-compatible',
+          baseUrl: 'http://localhost:4000/v1/',
+          messages,
+        },
+        { fetchImpl }
+      );
+      // Trailing slash is stripped by resolveSettings, so the base ends in /v1
+      const [url, init] = fetchImpl.mock.calls[0];
+      expect(url).toBe('http://localhost:4000/v1/messages');
+      // Keyless proxies must work without auth headers
+      expect(init.headers.Authorization).toBeUndefined();
+      expect(init.headers['x-api-key']).toBeUndefined();
+    });
+
+    it('rejects anthropic-compatible without a base URL', async () => {
+      await expect(
+        complete({ provider: 'anthropic-compatible', messages }, { fetchImpl: okFetch({}) })
+      ).rejects.toThrow(/Invalid API base URL/);
+    });
+
    it('surfaces HTTP failures as user-safe errors without the body', async () => {
      const fetchImpl = jest.fn().mockResolvedValue({ ok: false, status: 401 });
      await expect(
@@ -0,0 +1,199 @@
+/**
+ * @jest-environment node
+ *
+ * MarkItDown bridge tests with a stubbed execFile — no Python needed.
+ * Covers command resolution order, argv-array invocation (SEC-1), stdout
+ * capture, error surfacing, and path validation.
+ */
+const os = require('os');
+const path = require('path');
+const { resolveMarkItDown, convertToMarkdown, commandCandidates } = require('../../src/main/MarkItDown');
+const { setImmediate } = require('timers');
+
+/**
+ * Build a runner stub. `script` maps "cmd argline" -> {error?, stdout?, stderr?}.
+ * Unmatched invocations fail with ENOENT (an uninstalled command), which is
+ * exactly what the real execFile does. Records every call for argv assertions.
+ */
+function makeRunner(script = {}) {
+  const calls = [];
+  const runner = (cmd, args, opts, cb) => {
+    calls.push({ cmd, args, opts });
+    const isVersionProbe = args.length > 0 && args[args.length - 1] === '--version';
+    const key = isVersionProbe
+      ? [cmd, ...args.slice(0, -1), '--version'].join(' ')
+      : [cmd, ...args].join(' ');
+    const result = script[key];
+    setImmediate(() =>
+      cb(
+        result ? result.error || null : Object.assign(new Error('spawn ENOENT'), { code: 'ENOENT' }),
+        result?.stdout ?? '',
+        result?.stderr ?? ''
+      )
+    );
+  };
+  runner.calls = calls;
+  return runner;
+}
+
+describe('MarkItDown', () => {
+  describe('resolveMarkItDown', () => {
+    it('prefers a direct markitdown binary when present', async () => {
+      const runner = makeRunner({
+        'markitdown --version': { stdout: 'markitdown 0.1.7\n' },
+      });
+      const resolved = await resolveMarkItDown(runner);
+      expect(resolved).toEqual({ command: 'markitdown', argsPrefix: [], version: '0.1.7' });
+    });
+
+    it('falls back to python -m markitdown', async () => {
+      const py = process.platform === 'win32' ? 'python' : 'python3';
+      const runner = makeRunner({
+        [`${py} -m markitdown --version`]: { stdout: 'markitdown 0.1.6' },
+      });
+      const resolved = await resolveMarkItDown(runner);
+      expect(resolved).toMatchObject({ command: py, argsPrefix: ['-m', 'markitdown'] });
+    });
+
+    it('probes every candidate before giving up (null)', async () => {
+      const runner = makeRunner({});
+      expect(await resolveMarkItDown(runner)).toBeNull();
+      // One probe per candidate (bundled binary included when present)
+      expect(runner.calls).toHaveLength(commandCandidates().length);
+    });
+
+    it('prefers the bundled binary when one ships with the app', async () => {
+      const candidates = commandCandidates();
+      if (!candidates[0].bundled) {
+        // Machine has no bin/<platform>/markitdown — assert ordering of the
+        // remaining candidates instead.
+        expect(candidates.map((c) => c.command)).toContain('markitdown');
+        return;
+      }
+      const runner = makeRunner({});
+      const first = candidates[0];
+      runner.calls.length = 0;
+      // Stub the bundled path's --version probe
+      const script = {};
+      script[`${first.command} --version`] = { stdout: 'markitdown 0.1.7' };
+      const stub = makeRunner(script);
+      const resolved = await resolveMarkItDown(stub);
+      expect(resolved.command).toBe(first.command);
+      expect(stub.calls[0].cmd).toBe(first.command);
+    });
+
+    it('treats a non-zero probe exit as unavailable', async () => {
+      const runner = makeRunner({
+        'markitdown --version': { error: Object.assign(new Error('ENOENT'), { code: 'ENOENT' }) },
+      });
+      const resolved = await resolveMarkItDown(runner);
+      // Falls through to python candidates which also fail here -> null
+      expect(resolved).toBeNull();
+    });
+  });
+
+  describe('convertToMarkdown', () => {
+    const inputPath = path.join(os.tmpdir(), 'any-file.docx');
+
+    it('passes the user path as a literal argv element (no shell)', async () => {
+      const runner = makeRunner({
+        [`markitdown ${inputPath}`]: { stdout: '# Converted\n' },
+      });
+      const { content } = await convertToMarkdown(inputPath, {
+        runner,
+        resolved: { command: 'markitdown', argsPrefix: [], version: null },
+      });
+      expect(content).toBe('# Converted\n');
+      expect(runner.calls[0].cmd).toBe('markitdown');
+      expect(runner.calls[0].args).toEqual([inputPath]);
+    });
+
+    it('prepends the module prefix for python-style invocation', async () => {
+      const calls = [];
+      const fake = (cmd, args, opts, cb) => {
+        calls.push({ cmd, args, opts });
+        setImmediate(() => cb(null, 'ok', ''));
+      };
+      await convertToMarkdown(inputPath, {
+        runner: fake,
+        resolved: { command: 'python3', argsPrefix: ['-m', 'markitdown'], version: null },
+      });
+      expect(calls[0].cmd).toBe('python3');
+      expect(calls[0].args).toEqual(['-m', 'markitdown', inputPath]);
+    });
+
+    it('strips a UTF-8 BOM from the output', async () => {
+      const runner = makeRunner({
+        [`markitdown ${inputPath}`]: { stdout: '\uFEFF# Title\n' },
+      });
+      const { content } = await convertToMarkdown(inputPath, {
+        runner,
+        resolved: { command: 'markitdown', argsPrefix: [], version: null },
+      });
+      expect(content.startsWith('\uFEFF')).toBe(false);
+    });
+
+    it('surfaces the actionable last stderr line and sanitizes paths', async () => {
+      const runner = makeRunner({
+        [`markitdown ${inputPath}`]: {
+          error: Object.assign(new Error('Command failed'), { code: 1 }),
+          stderr:
+            'Traceback (most recent call last):\n  File "/home/user/x.py", line 1\n' +
+            "* pip install 'markitdown[pdf]'",
+        },
+      });
+      await expect(
+        convertToMarkdown(inputPath, {
+          runner,
+          resolved: { command: 'markitdown', argsPrefix: [], version: null },
+        })
+      ).rejects.toThrow(/pip install 'markitdown\[pdf\]'/);
+    });
+
+    it('classifies timeouts', async () => {
+      const runner = makeRunner({
+        [`markitdown ${inputPath}`]: {
+          error: Object.assign(new Error(' timeout'), { code: 'ETIMEDOUT' }),
+        },
+      });
+      await expect(
+        convertToMarkdown(inputPath, {
+          runner,
+          resolved: { command: 'markitdown', argsPrefix: [], version: null },
+        })
+      ).rejects.toMatchObject({ code: 'timeout' });
+    });
+
+    it('rejects empty output with the supported-formats hint', async () => {
+      const runner = makeRunner({
+        [`markitdown ${inputPath}`]: { stdout: '   ' },
+      });
+      await expect(
+        convertToMarkdown(inputPath, {
+          runner,
+          resolved: { command: 'markitdown', argsPrefix: [], version: null },
+        })
+      ).rejects.toMatchObject({ code: 'empty_output' });
+    });
+
+    it('rejects non-absolute and non-string paths', async () => {
+      const runner = makeRunner({});
+      await expect(
+        convertToMarkdown('relative.docx', {
+          runner,
+          resolved: { command: 'markitdown', argsPrefix: [], version: null },
+        })
+      ).rejects.toMatchObject({ code: 'bad_path' });
+      await expect(convertToMarkdown(null, { runner })).rejects.toMatchObject({
+        code: 'bad_path',
+      });
+    });
+
+    it('fails with install instructions when not installed', async () => {
+      const runner = makeRunner({});
+      await expect(convertToMarkdown(inputPath, { runner })).rejects.toMatchObject({
+        code: 'not_installed',
+      });
+    });
+  });
+});
@@ -50,8 +50,11 @@ function listFilesRecursively(dir) {
  );

  test('sharp-linux-x64 ships its native binding', () => {
-    const binding = path.join(UNPACKED_IMG_DIR, 'sharp-linux-x64', 'lib', 'sharp-linux-x64.node');
-    expect(fs.existsSync(binding)).toBe(true);
+    // sharp 0.35 names the binding with a version suffix
+    // (sharp-linux-x64-0.35.4.node); 0.34 used a bare name — accept both
+    const libDir = path.join(UNPACKED_IMG_DIR, 'sharp-linux-x64', 'lib');
+    const bindings = fs.readdirSync(libDir).filter((f) => /^sharp-linux-x64.*\.node$/.test(f));
+    expect(bindings.length).toBeGreaterThan(0);
  });

  test('sharp-libvips-linux-x64 ships the bundled libvips shared libraries', () => {
@@ -1,5 +1,7 @@
 const { ProjectManager } = require('../src/plugins/built-in/writing-studio/project-manager');

+// All ProjectManager methods are async (the real fs backend is the IPC-backed
+// file API; these tests inject a synchronous fake, which `await` handles).
 describe('ProjectManager', () => {
  let pm;
  let files;
@@ -19,8 +21,8 @@ describe('ProjectManager', () => {
    });
  });

-  test('createProject writes .project.json', () => {
-    const project = pm.createProject('/manuscripts/novel', {
+  test('createProject writes .project.json', async () => {
+    const project = await pm.createProject('/manuscripts/novel', {
      title: 'My Novel',
      type: 'manuscript',
      targetWords: 80000,
@@ -31,7 +33,7 @@ describe('ProjectManager', () => {
    expect(parsed.target.words).toBe(80000);
  });

-  test('loadProject reads and returns project data', () => {
+  test('loadProject reads and returns project data', async () => {
    files['/manuscripts/novel/.project.json'] = JSON.stringify({
      title: 'Test',
      type: 'manuscript',
@@ -39,15 +41,15 @@ describe('ProjectManager', () => {
      chapters: [],
      metadata: {},
    });
-    const project = pm.loadProject('/manuscripts/novel');
+    const project = await pm.loadProject('/manuscripts/novel');
    expect(project.title).toBe('Test');
  });

-  test('loadProject returns null if no project file', () => {
-    expect(pm.loadProject('/nonexistent')).toBeNull();
+  test('loadProject returns null if no project file', async () => {
+    await expect(pm.loadProject('/nonexistent')).resolves.toBeNull();
  });

-  test('addChapter appends chapter and saves', () => {
+  test('addChapter appends chapter and saves', async () => {
    files['/manuscripts/novel/.project.json'] = JSON.stringify({
      title: 'Test',
      type: 'manuscript',
@@ -55,7 +57,7 @@ describe('ProjectManager', () => {
      chapters: [],
      metadata: {},
    });
-    pm.addChapter('/manuscripts/novel', {
+    await pm.addChapter('/manuscripts/novel', {
      file: '01-chapter.md',
      title: 'Chapter One',
      status: 'draft',
@@ -65,7 +67,7 @@ describe('ProjectManager', () => {
    expect(parsed.chapters[0].title).toBe('Chapter One');
  });

-  test('compileManuscript concatenates chapter files', () => {
+  test('compileManuscript concatenates chapter files', async () => {
    files['/manuscripts/novel/.project.json'] = JSON.stringify({
      title: 'Test',
      type: 'manuscript',
@@ -78,11 +80,11 @@ describe('ProjectManager', () => {
    });
    files['/manuscripts/novel/01.md'] = 'First chapter content.';
    files['/manuscripts/novel/02.md'] = 'Second chapter content.';
-    const result = pm.compileManuscript('/manuscripts/novel');
+    const result = await pm.compileManuscript('/manuscripts/novel');
    expect(result).toBe('First chapter content.\n\n---\n\nSecond chapter content.');
  });

-  test('compileManuscript skips missing files', () => {
+  test('compileManuscript skips missing files', async () => {
    files['/manuscripts/novel/.project.json'] = JSON.stringify({
      title: 'Test',
      type: 'manuscript',
@@ -94,11 +96,11 @@ describe('ProjectManager', () => {
      metadata: {},
    });
    files['/manuscripts/novel/01.md'] = 'Only chapter one.';
-    const result = pm.compileManuscript('/manuscripts/novel');
+    const result = await pm.compileManuscript('/manuscripts/novel');
    expect(result).toBe('Only chapter one.');
  });

-  test('getStats returns total word count across chapters', () => {
+  test('getStats returns total word count across chapters', async () => {
    files['/manuscripts/novel/.project.json'] = JSON.stringify({
      title: 'Test',
      type: 'manuscript',
@@ -111,14 +113,14 @@ describe('ProjectManager', () => {
    });
    files['/manuscripts/novel/01.md'] = 'word '.repeat(100).trim();
    files['/manuscripts/novel/02.md'] = 'more '.repeat(50).trim();
-    const stats = pm.getStats('/manuscripts/novel');
+    const stats = await pm.getStats('/manuscripts/novel');
    expect(stats.totalWords).toBeGreaterThan(0);
    expect(stats.chapterCount).toBe(2);
    expect(stats.targetWords).toBe(50000);
    expect(stats.pctComplete).toBeDefined();
  });

-  test('updateChapter modifies a chapter by index', () => {
+  test('updateChapter modifies a chapter by index', async () => {
    files['/manuscripts/novel/.project.json'] = JSON.stringify({
      title: 'Test',
      type: 'manuscript',
@@ -126,7 +128,7 @@ describe('ProjectManager', () => {
      chapters: [{ file: '01.md', title: 'Old Title', status: 'draft' }],
      metadata: {},
    });
-    pm.updateChapter('/manuscripts/novel', 0, { title: 'New Title', status: 'revised' });
+    await pm.updateChapter('/manuscripts/novel', 0, { title: 'New Title', status: 'revised' });
    const parsed = JSON.parse(files['/manuscripts/novel/.project.json']);
    expect(parsed.chapters[0].title).toBe('New Title');
    expect(parsed.chapters[0].status).toBe('revised');
@@ -1,5 +1,7 @@
 const { SnapshotManager } = require('../src/plugins/built-in/writing-studio/snapshot-manager');

+// All SnapshotManager methods are async (the real settings backend is the
+// IPC-backed SettingsStore; these tests inject a synchronous fake).
 describe('SnapshotManager', () => {
  let manager;
  let store;
@@ -14,62 +16,63 @@ describe('SnapshotManager', () => {
    });
  });

-  test('create stores snapshot with timestamp, content, wordCount', () => {
-    const snap = manager.create('Hello world this is a test', 'auto');
+  test('create stores snapshot with timestamp, content, wordCount', async () => {
+    const snap = await manager.create('Hello world this is a test', 'auto');
    expect(snap).toHaveProperty('id');
    expect(snap.content).toBe('Hello world this is a test');
    expect(snap.wordCount).toBe(6);
    expect(snap.label).toBe('auto');
  });

-  test('list returns snapshots ordered newest first', () => {
-    manager.create('first', 'auto');
-    manager.create('second', 'auto');
-    const list = manager.list();
+  test('list returns snapshots ordered newest first', async () => {
+    await manager.create('first', 'auto');
+    await manager.create('second', 'auto');
+    const list = await manager.list();
    expect(list.length).toBe(2);
    expect(list[0].content).toBe('second');
  });

-  test('getById returns specific snapshot', () => {
-    const snap = manager.create('find me', 'manual');
-    const found = manager.getById(snap.id);
+  test('getById returns specific snapshot', async () => {
+    const snap = await manager.create('find me', 'manual');
+    const found = await manager.getById(snap.id);
    expect(found.content).toBe('find me');
  });

-  test('getById returns null for missing id', () => {
-    expect(manager.getById('nope')).toBeNull();
+  test('getById returns null for missing id', async () => {
+    await expect(manager.getById('nope')).resolves.toBeNull();
  });

-  test('restore returns content of snapshot', () => {
-    const snap = manager.create('restore this', 'manual');
-    expect(manager.restore(snap.id)).toBe('restore this');
+  test('restore returns content of snapshot', async () => {
+    const snap = await manager.create('restore this', 'manual');
+    await expect(manager.restore(snap.id)).resolves.toBe('restore this');
  });

-  test('restore throws for missing snapshot', () => {
-    expect(() => manager.restore('nope')).toThrow('Snapshot not found');
+  test('restore throws for missing snapshot', async () => {
+    await expect(manager.restore('nope')).rejects.toThrow('Snapshot not found');
  });

-  test('delete removes a snapshot', () => {
-    const snap = manager.create('delete me', 'auto');
-    manager.delete(snap.id);
-    expect(manager.getById(snap.id)).toBeNull();
+  test('delete removes a snapshot', async () => {
+    const snap = await manager.create('delete me', 'auto');
+    await manager.delete(snap.id);
+    await expect(manager.getById(snap.id)).resolves.toBeNull();
  });

-  test('diff returns added/removed line counts', () => {
-    const snap = manager.create('line one\nline two\nline three', 'auto');
-    const result = manager.diff(snap.id, 'line one\nline modified\nline three\nline four');
+  test('diff returns added/removed line counts', async () => {
+    const snap = await manager.create('line one\nline two\nline three', 'auto');
+    const result = await manager.diff(snap.id, 'line one\nline modified\nline three\nline four');
    expect(result.added).toBe(2);
    expect(result.removed).toBe(1);
  });

-  test('diff throws for missing snapshot', () => {
-    expect(() => manager.diff('nope', 'new content')).toThrow('Snapshot not found');
+  test('diff throws for missing snapshot', async () => {
+    await expect(manager.diff('nope', 'new content')).rejects.toThrow('Snapshot not found');
  });

-  test('prune keeps only the N most recent snapshots', () => {
-    for (let i = 0; i < 10; i++) manager.create('snap ' + i, 'auto');
-    manager.prune(5);
-    expect(manager.list().length).toBe(5);
-    expect(manager.list()[0].content).toBe('snap 9');
+  test('prune keeps only the N most recent snapshots', async () => {
+    for (let i = 0; i < 10; i++) await manager.create('snap ' + i, 'auto');
+    await manager.prune(5);
+    const list = await manager.list();
+    expect(list.length).toBe(5);
+    expect(list[0].content).toBe('snap 9');
  });
 });
@@ -0,0 +1,202 @@
+
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@@ -0,0 +1,338 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
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+  The licenses for most software are designed to take away your
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+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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+
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+    Copyright (C) <year>  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
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+
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+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
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+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Moe Ghoul>, 1 April 1989
+  Moe Ghoul, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.
@@ -0,0 +1,501 @@
+                  GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+ <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
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+
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+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the
+  library `Frob' (a library for tweaking knobs) written by James Random Hacker.
+
+  <signature of Moe Ghoul>, 1 April 1990
+  Moe Ghoul, President of Vice
+
+That's all there is to it!
@@ -0,0 +1,373 @@
+Mozilla Public License Version 2.0
+==================================
+
+1. Definitions
+--------------
+
+1.1. "Contributor"
+    means each individual or legal entity that creates, contributes to
+    the creation of, or owns Covered Software.
+
+1.2. "Contributor Version"
+    means the combination of the Contributions of others (if any) used
+    by a Contributor and that particular Contributor's Contribution.
+
+1.3. "Contribution"
+    means Covered Software of a particular Contributor.
+
+1.4. "Covered Software"
+    means Source Code Form to which the initial Contributor has attached
+    the notice in Exhibit A, the Executable Form of such Source Code
+    Form, and Modifications of such Source Code Form, in each case
+    including portions thereof.
+
+1.5. "Incompatible With Secondary Licenses"
+    means
+
+    (a) that the initial Contributor has attached the notice described
+        in Exhibit B to the Covered Software; or
+
+    (b) that the Covered Software was made available under the terms of
+        version 1.1 or earlier of the License, but not also under the
+        terms of a Secondary License.
+
+1.6. "Executable Form"
+    means any form of the work other than Source Code Form.
+
+1.7. "Larger Work"
+    means a work that combines Covered Software with other material, in
+    a separate file or files, that is not Covered Software.
+
+1.8. "License"
+    means this document.
+
+1.9. "Licensable"
+    means having the right to grant, to the maximum extent possible,
+    whether at the time of the initial grant or subsequently, any and
+    all of the rights conveyed by this License.
+
+1.10. "Modifications"
+    means any of the following:
+
+    (a) any file in Source Code Form that results from an addition to,
+        deletion from, or modification of the contents of Covered
+        Software; or
+
+    (b) any new file in Source Code Form that contains any Covered
+        Software.
+
+1.11. "Patent Claims" of a Contributor
+    means any patent claim(s), including without limitation, method,
+    process, and apparatus claims, in any patent Licensable by such
+    Contributor that would be infringed, but for the grant of the
+    License, by the making, using, selling, offering for sale, having
+    made, import, or transfer of either its Contributions or its
+    Contributor Version.
+
+1.12. "Secondary License"
+    means either the GNU General Public License, Version 2.0, the GNU
+    Lesser General Public License, Version 2.1, the GNU Affero General
+    Public License, Version 3.0, or any later versions of those
+    licenses.
+
+1.13. "Source Code Form"
+    means the form of the work preferred for making modifications.
+
+1.14. "You" (or "Your")
+    means an individual or a legal entity exercising rights under this
+    License. For legal entities, "You" includes any entity that
+    controls, is controlled by, or is under common control with You. For
+    purposes of this definition, "control" means (a) the power, direct
+    or indirect, to cause the direction or management of such entity,
+    whether by contract or otherwise, or (b) ownership of more than
+    fifty percent (50%) of the outstanding shares or beneficial
+    ownership of such entity.
+
+2. License Grants and Conditions
+--------------------------------
+
+2.1. Grants
+
+Each Contributor hereby grants You a world-wide, royalty-free,
+non-exclusive license:
+
+(a) under intellectual property rights (other than patent or trademark)
+    Licensable by such Contributor to use, reproduce, make available,
+    modify, display, perform, distribute, and otherwise exploit its
+    Contributions, either on an unmodified basis, with Modifications, or
+    as part of a Larger Work; and
+
+(b) under Patent Claims of such Contributor to make, use, sell, offer
+    for sale, have made, import, and otherwise transfer either its
+    Contributions or its Contributor Version.
+
+2.2. Effective Date
+
+The licenses granted in Section 2.1 with respect to any Contribution
+become effective for each Contribution on the date the Contributor first
+distributes such Contribution.
+
+2.3. Limitations on Grant Scope
+
+The licenses granted in this Section 2 are the only rights granted under
+this License. No additional rights or licenses will be implied from the
+distribution or licensing of Covered Software under this License.
+Notwithstanding Section 2.1(b) above, no patent license is granted by a
+Contributor:
+
+(a) for any code that a Contributor has removed from Covered Software;
+    or
+
+(b) for infringements caused by: (i) Your and any other third party's
+    modifications of Covered Software, or (ii) the combination of its
+    Contributions with other software (except as part of its Contributor
+    Version); or
+
+(c) under Patent Claims infringed by Covered Software in the absence of
+    its Contributions.
+
+This License does not grant any rights in the trademarks, service marks,
+or logos of any Contributor (except as may be necessary to comply with
+the notice requirements in Section 3.4).
+
+2.4. Subsequent Licenses
+
+No Contributor makes additional grants as a result of Your choice to
+distribute the Covered Software under a subsequent version of this
+License (see Section 10.2) or under the terms of a Secondary License (if
+permitted under the terms of Section 3.3).
+
+2.5. Representation
+
+Each Contributor represents that the Contributor believes its
+Contributions are its original creation(s) or it has sufficient rights
+to grant the rights to its Contributions conveyed by this License.
+
+2.6. Fair Use
+
+This License is not intended to limit any rights You have under
+applicable copyright doctrines of fair use, fair dealing, or other
+equivalents.
+
+2.7. Conditions
+
+Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
+in Section 2.1.
+
+3. Responsibilities
+-------------------
+
+3.1. Distribution of Source Form
+
+All distribution of Covered Software in Source Code Form, including any
+Modifications that You create or to which You contribute, must be under
+the terms of this License. You must inform recipients that the Source
+Code Form of the Covered Software is governed by the terms of this
+License, and how they can obtain a copy of this License. You may not
+attempt to alter or restrict the recipients' rights in the Source Code
+Form.
+
+3.2. Distribution of Executable Form
+
+If You distribute Covered Software in Executable Form then:
+
+(a) such Covered Software must also be made available in Source Code
+    Form, as described in Section 3.1, and You must inform recipients of
+    the Executable Form how they can obtain a copy of such Source Code
+    Form by reasonable means in a timely manner, at a charge no more
+    than the cost of distribution to the recipient; and
+
+(b) You may distribute such Executable Form under the terms of this
+    License, or sublicense it under different terms, provided that the
+    license for the Executable Form does not attempt to limit or alter
+    the recipients' rights in the Source Code Form under this License.
+
+3.3. Distribution of a Larger Work
+
+You may create and distribute a Larger Work under terms of Your choice,
+provided that You also comply with the requirements of this License for
+the Covered Software. If the Larger Work is a combination of Covered
+Software with a work governed by one or more Secondary Licenses, and the
+Covered Software is not Incompatible With Secondary Licenses, this
+License permits You to additionally distribute such Covered Software
+under the terms of such Secondary License(s), so that the recipient of
+the Larger Work may, at their option, further distribute the Covered
+Software under the terms of either this License or such Secondary
+License(s).
+
+3.4. Notices
+
+You may not remove or alter the substance of any license notices
+(including copyright notices, patent notices, disclaimers of warranty,
+or limitations of liability) contained within the Source Code Form of
+the Covered Software, except that You may alter any license notices to
+the extent required to remedy known factual inaccuracies.
+
+3.5. Application of Additional Terms
+
+You may choose to offer, and to charge a fee for, warranty, support,
+indemnity or liability obligations to one or more recipients of Covered
+Software. However, You may do so only on Your own behalf, and not on
+behalf of any Contributor. You must make it absolutely clear that any
+such warranty, support, indemnity, or liability obligation is offered by
+You alone, and You hereby agree to indemnify every Contributor for any
+liability incurred by such Contributor as a result of warranty, support,
+indemnity or liability terms You offer. You may include additional
+disclaimers of warranty and limitations of liability specific to any
+jurisdiction.
+
+4. Inability to Comply Due to Statute or Regulation
+---------------------------------------------------
+
+If it is impossible for You to comply with any of the terms of this
+License with respect to some or all of the Covered Software due to
+statute, judicial order, or regulation then You must: (a) comply with
+the terms of this License to the maximum extent possible; and (b)
+describe the limitations and the code they affect. Such description must
+be placed in a text file included with all distributions of the Covered
+Software under this License. Except to the extent prohibited by statute
+or regulation, such description must be sufficiently detailed for a
+recipient of ordinary skill to be able to understand it.
+
+5. Termination
+--------------
+
+5.1. The rights granted under this License will terminate automatically
+if You fail to comply with any of its terms. However, if You become
+compliant, then the rights granted under this License from a particular
+Contributor are reinstated (a) provisionally, unless and until such
+Contributor explicitly and finally terminates Your grants, and (b) on an
+ongoing basis, if such Contributor fails to notify You of the
+non-compliance by some reasonable means prior to 60 days after You have
+come back into compliance. Moreover, Your grants from a particular
+Contributor are reinstated on an ongoing basis if such Contributor
+notifies You of the non-compliance by some reasonable means, this is the
+first time You have received notice of non-compliance with this License
+from such Contributor, and You become compliant prior to 30 days after
+Your receipt of the notice.
+
+5.2. If You initiate litigation against any entity by asserting a patent
+infringement claim (excluding declaratory judgment actions,
+counter-claims, and cross-claims) alleging that a Contributor Version
+directly or indirectly infringes any patent, then the rights granted to
+You by any and all Contributors for the Covered Software under Section
+2.1 of this License shall terminate.
+
+5.3. In the event of termination under Sections 5.1 or 5.2 above, all
+end user license agreements (excluding distributors and resellers) which
+have been validly granted by You or Your distributors under this License
+prior to termination shall survive termination.
+
+************************************************************************
+*                                                                      *
+*  6. Disclaimer of Warranty                                           *
+*  -------------------------                                           *
+*                                                                      *
+*  Covered Software is provided under this License on an "as is"       *
+*  basis, without warranty of any kind, either expressed, implied, or  *
+*  statutory, including, without limitation, warranties that the       *
+*  Covered Software is free of defects, merchantable, fit for a        *
+*  particular purpose or non-infringing. The entire risk as to the     *
+*  quality and performance of the Covered Software is with You.        *
+*  Should any Covered Software prove defective in any respect, You     *
+*  (not any Contributor) assume the cost of any necessary servicing,   *
+*  repair, or correction. This disclaimer of warranty constitutes an   *
+*  essential part of this License. No use of any Covered Software is   *
+*  authorized under this License except under this disclaimer.         *
+*                                                                      *
+************************************************************************
+
+************************************************************************
+*                                                                      *
+*  7. Limitation of Liability                                          *
+*  --------------------------                                          *
+*                                                                      *
+*  Under no circumstances and under no legal theory, whether tort      *
+*  (including negligence), contract, or otherwise, shall any           *
+*  Contributor, or anyone who distributes Covered Software as          *
+*  permitted above, be liable to You for any direct, indirect,         *
+*  special, incidental, or consequential damages of any character      *
+*  including, without limitation, damages for lost profits, loss of    *
+*  goodwill, work stoppage, computer failure or malfunction, or any    *
+*  and all other commercial damages or losses, even if such party      *
+*  shall have been informed of the possibility of such damages. This   *
+*  limitation of liability shall not apply to liability for death or   *
+*  personal injury resulting from such party's negligence to the       *
+*  extent applicable law prohibits such limitation. Some               *
+*  jurisdictions do not allow the exclusion or limitation of           *
+*  incidental or consequential damages, so this exclusion and          *
+*  limitation may not apply to You.                                    *
+*                                                                      *
+************************************************************************
+
+8. Litigation
+-------------
+
+Any litigation relating to this License may be brought only in the
+courts of a jurisdiction where the defendant maintains its principal
+place of business and such litigation shall be governed by laws of that
+jurisdiction, without reference to its conflict-of-law provisions.
+Nothing in this Section shall prevent a party's ability to bring
+cross-claims or counter-claims.
+
+9. Miscellaneous
+----------------
+
+This License represents the complete agreement concerning the subject
+matter hereof. If any provision of this License is held to be
+unenforceable, such provision shall be reformed only to the extent
+necessary to make it enforceable. Any law or regulation which provides
+that the language of a contract shall be construed against the drafter
+shall not be used to construe this License against a Contributor.
+
+10. Versions of the License
+---------------------------
+
+10.1. New Versions
+
+Mozilla Foundation is the license steward. Except as provided in Section
+10.3, no one other than the license steward has the right to modify or
+publish new versions of this License. Each version will be given a
+distinguishing version number.
+
+10.2. Effect of New Versions
+
+You may distribute the Covered Software under the terms of the version
+of the License under which You originally received the Covered Software,
+or under the terms of any subsequent version published by the license
+steward.
+
+10.3. Modified Versions
+
+If you create software not governed by this License, and you want to
+create a new license for such software, you may create and use a
+modified version of this License if you rename the license and remove
+any references to the name of the license steward (except to note that
+such modified license differs from this License).
+
+10.4. Distributing Source Code Form that is Incompatible With Secondary
+Licenses
+
+If You choose to distribute Source Code Form that is Incompatible With
+Secondary Licenses under the terms of this version of the License, the
+notice described in Exhibit B of this License must be attached.
+
+Exhibit A - Source Code Form License Notice
+-------------------------------------------
+
+  This Source Code Form is subject to the terms of the Mozilla Public
+  License, v. 2.0. If a copy of the MPL was not distributed with this
+  file, You can obtain one at https://mozilla.org/MPL/2.0/.
+
+If it is not possible or desirable to put the notice in a particular
+file, then You may include the notice in a location (such as a LICENSE
+file in a relevant directory) where a recipient would be likely to look
+for such a notice.
+
+You may add additional accurate notices of copyright ownership.
+
+Exhibit B - "Incompatible With Secondary Licenses" Notice
+---------------------------------------------------------
+
+  This Source Code Form is "Incompatible With Secondary Licenses", as
+  defined by the Mozilla Public License, v. 2.0.
@@ -0,0 +1,93 @@
+Copyright 2020 The JetBrains Mono Project Authors (https://github.com/JetBrains/JetBrainsMono)
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+https://openfontlicense.org
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded, 
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.
@@ -0,0 +1,277 @@
+A. HISTORY OF THE SOFTWARE
+==========================
+
+Python was created in the early 1990s by Guido van Rossum at Stichting
+Mathematisch Centrum (CWI, see https://www.cwi.nl) in the Netherlands
+as a successor of a language called ABC.  Guido remains Python's
+principal author, although it includes many contributions from others.
+
+In 1995, Guido continued his work on Python at the Corporation for
+National Research Initiatives (CNRI, see https://www.cnri.reston.va.us)
+in Reston, Virginia where he released several versions of the
+software.
+
+In May 2000, Guido and the Python core development team moved to
+BeOpen.com to form the BeOpen PythonLabs team.  In October of the same
+year, the PythonLabs team moved to Digital Creations, which became
+Zope Corporation.  In 2001, the Python Software Foundation (PSF, see
+https://www.python.org/psf/) was formed, a non-profit organization
+created specifically to own Python-related Intellectual Property.
+Zope Corporation was a sponsoring member of the PSF.
+
+All Python releases are Open Source (see https://opensource.org for
+the Open Source Definition).  Historically, most, but not all, Python
+releases have also been GPL-compatible; the table below summarizes
+the various releases.
+
+    Release         Derived     Year        Owner       GPL-
+                    from                                compatible? (1)
+
+    0.9.0 thru 1.2              1991-1995   CWI         yes
+    1.3 thru 1.5.2  1.2         1995-1999   CNRI        yes
+    1.6             1.5.2       2000        CNRI        no
+    2.0             1.6         2000        BeOpen.com  no
+    1.6.1           1.6         2001        CNRI        yes (2)
+    2.1             2.0+1.6.1   2001        PSF         no
+    2.0.1           2.0+1.6.1   2001        PSF         yes
+    2.1.1           2.1+2.0.1   2001        PSF         yes
+    2.1.2           2.1.1       2002        PSF         yes
+    2.1.3           2.1.2       2002        PSF         yes
+    2.2 and above   2.1.1       2001-now    PSF         yes
+
+Footnotes:
+
+(1) GPL-compatible doesn't mean that we're distributing Python under
+    the GPL.  All Python licenses, unlike the GPL, let you distribute
+    a modified version without making your changes open source.  The
+    GPL-compatible licenses make it possible to combine Python with
+    other software that is released under the GPL; the others don't.
+
+(2) According to Richard Stallman, 1.6.1 is not GPL-compatible,
+    because its license has a choice of law clause.  According to
+    CNRI, however, Stallman's lawyer has told CNRI's lawyer that 1.6.1
+    is "not incompatible" with the GPL.
+
+Thanks to the many outside volunteers who have worked under Guido's
+direction to make these releases possible.
+
+
+B. TERMS AND CONDITIONS FOR ACCESSING OR OTHERWISE USING PYTHON
+===============================================================
+
+Python software and documentation are licensed under the
+Python Software Foundation License Version 2.
+
+Starting with Python 3.8.6, examples, recipes, and other code in
+the documentation are dual licensed under the PSF License Version 2
+and the Zero-Clause BSD license.
+
+Some software incorporated into Python is under different licenses.
+The licenses are listed with code falling under that license.
+
+
+PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2
+--------------------------------------------
+
+1. This LICENSE AGREEMENT is between the Python Software Foundation
+("PSF"), and the Individual or Organization ("Licensee") accessing and
+otherwise using this software ("Python") in source or binary form and
+its associated documentation.
+
+2. Subject to the terms and conditions of this License Agreement, PSF hereby
+grants Licensee a nonexclusive, royalty-free, world-wide license to reproduce,
+analyze, test, perform and/or display publicly, prepare derivative works,
+distribute, and otherwise use Python alone or in any derivative version,
+provided, however, that PSF's License Agreement and PSF's notice of copyright,
+i.e., "Copyright (c) 2001-2024 Python Software Foundation; All Rights Reserved"
+are retained in Python alone or in any derivative version prepared by Licensee.
+
+3. In the event Licensee prepares a derivative work that is based on
+or incorporates Python or any part thereof, and wants to make
+the derivative work available to others as provided herein, then
+Licensee hereby agrees to include in any such work a brief summary of
+the changes made to Python.
+
+4. PSF is making Python available to Licensee on an "AS IS"
+basis.  PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
+IMPLIED.  BY WAY OF EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND
+DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
+FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON WILL NOT
+INFRINGE ANY THIRD PARTY RIGHTS.
+
+5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
+FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS
+A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON,
+OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
+
+6. This License Agreement will automatically terminate upon a material
+breach of its terms and conditions.
+
+7. Nothing in this License Agreement shall be deemed to create any
+relationship of agency, partnership, or joint venture between PSF and
+Licensee.  This License Agreement does not grant permission to use PSF
+trademarks or trade name in a trademark sense to endorse or promote
+products or services of Licensee, or any third party.
+
+8. By copying, installing or otherwise using Python, Licensee
+agrees to be bound by the terms and conditions of this License
+Agreement.
+
+
+BEOPEN.COM LICENSE AGREEMENT FOR PYTHON 2.0
+-------------------------------------------
+
+BEOPEN PYTHON OPEN SOURCE LICENSE AGREEMENT VERSION 1
+
+1. This LICENSE AGREEMENT is between BeOpen.com ("BeOpen"), having an
+office at 160 Saratoga Avenue, Santa Clara, CA 95051, and the
+Individual or Organization ("Licensee") accessing and otherwise using
+this software in source or binary form and its associated
+documentation ("the Software").
+
+2. Subject to the terms and conditions of this BeOpen Python License
+Agreement, BeOpen hereby grants Licensee a non-exclusive,
+royalty-free, world-wide license to reproduce, analyze, test, perform
+and/or display publicly, prepare derivative works, distribute, and
+otherwise use the Software alone or in any derivative version,
+provided, however, that the BeOpen Python License is retained in the
+Software, alone or in any derivative version prepared by Licensee.
+
+3. BeOpen is making the Software available to Licensee on an "AS IS"
+basis.  BEOPEN MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
+IMPLIED.  BY WAY OF EXAMPLE, BUT NOT LIMITATION, BEOPEN MAKES NO AND
+DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
+FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF THE SOFTWARE WILL NOT
+INFRINGE ANY THIRD PARTY RIGHTS.
+
+4. BEOPEN SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF THE
+SOFTWARE FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS
+AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THE SOFTWARE, OR ANY
+DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
+
+5. This License Agreement will automatically terminate upon a material
+breach of its terms and conditions.
+
+6. This License Agreement shall be governed by and interpreted in all
+respects by the law of the State of California, excluding conflict of
+law provisions.  Nothing in this License Agreement shall be deemed to
+create any relationship of agency, partnership, or joint venture
+between BeOpen and Licensee.  This License Agreement does not grant
+permission to use BeOpen trademarks or trade names in a trademark
+sense to endorse or promote products or services of Licensee, or any
+third party.  As an exception, the "BeOpen Python" logos available at
+http://www.pythonlabs.com/logos.html may be used according to the
+permissions granted on that web page.
+
+7. By copying, installing or otherwise using the software, Licensee
+agrees to be bound by the terms and conditions of this License
+Agreement.
+
+
+CNRI LICENSE AGREEMENT FOR PYTHON 1.6.1
+---------------------------------------
+
+1. This LICENSE AGREEMENT is between the Corporation for National
+Research Initiatives, having an office at 1895 Preston White Drive,
+Reston, VA 20191 ("CNRI"), and the Individual or Organization
+("Licensee") accessing and otherwise using Python 1.6.1 software in
+source or binary form and its associated documentation.
+
+2. Subject to the terms and conditions of this License Agreement, CNRI
+hereby grants Licensee a nonexclusive, royalty-free, world-wide
+license to reproduce, analyze, test, perform and/or display publicly,
+prepare derivative works, distribute, and otherwise use Python 1.6.1
+alone or in any derivative version, provided, however, that CNRI's
+License Agreement and CNRI's notice of copyright, i.e., "Copyright (c)
+1995-2001 Corporation for National Research Initiatives; All Rights
+Reserved" are retained in Python 1.6.1 alone or in any derivative
+version prepared by Licensee.  Alternately, in lieu of CNRI's License
+Agreement, Licensee may substitute the following text (omitting the
+quotes): "Python 1.6.1 is made available subject to the terms and
+conditions in CNRI's License Agreement.  This Agreement together with
+Python 1.6.1 may be located on the internet using the following
+unique, persistent identifier (known as a handle): 1895.22/1013.  This
+Agreement may also be obtained from a proxy server on the internet
+using the following URL: http://hdl.handle.net/1895.22/1013".
+
+3. In the event Licensee prepares a derivative work that is based on
+or incorporates Python 1.6.1 or any part thereof, and wants to make
+the derivative work available to others as provided herein, then
+Licensee hereby agrees to include in any such work a brief summary of
+the changes made to Python 1.6.1.
+
+4. CNRI is making Python 1.6.1 available to Licensee on an "AS IS"
+basis.  CNRI MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
+IMPLIED.  BY WAY OF EXAMPLE, BUT NOT LIMITATION, CNRI MAKES NO AND
+DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
+FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON 1.6.1 WILL NOT
+INFRINGE ANY THIRD PARTY RIGHTS.
+
+5. CNRI SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
+1.6.1 FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS
+A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON 1.6.1,
+OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
+
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Author	SHA1	Message	Date
amitwh	0be46d4bac	build(release): dynamic builder config + fix bundled-tool lookup in packages - electron-builder config moves to electron-builder.config.js so markitdown bundling is conditional per platform (PyInstaller only builds for the host OS; a missing binary now logs a warning and ships without it instead of failing the build); package.json static build section removed, all npm scripts pointed at the config; third-party-licenses/ added to packaged files - FIX (pre-existing): packaged apps looked for bundled pandoc in resources/bin, but extraFiles land next to the executable (Contents/ on macOS) — packaged builds silently fell back to system pandoc since 4.5. New bundledToolDir() resolves the real location for pandoc + markitdown - download-tools.js pins the win32 pandoc.exe SHA-256 (fetched + verified) - sharp packaging test accepts sharp 0.35's versioned binding filename - release.yml: bundle-markitdown step (best-effort) on every OS and a new macOS job; release aggregates linux+windows+macos artifacts Local release artifacts built and verified (dist/): - MarkdownConverter-4.7.0.AppImage (363MB, pandoc+markitdown bundled, packaged app boots clean, tools resolve at the fixed path) - markdown-converter_4.7.0_amd64.deb (293MB) - MarkdownConverter-Setup-4.7.0.exe (223MB), portable exe (223MB), zip (305MB) — pandoc bundled; markitdown omitted (cannot cross-build), legal docs verified inside app.asar 637/637 tests green; lint clean.	2026-09-05 22:48:45 +05:30
amitwh	1e24b52f3e	feat(legal): bundle small dependencies, add notices, credits, and GPL source offers Bundle (v4.7.0): - MarkItDown frozen to a single ~75MB per-platform binary (PyInstaller via npm run bundle:markitdown; ML extras excluded) — built and verified locally: HTML/XLSX/PDF conversions pass through the bundled binary, and the app resolves bin/linux/markitdown first at runtime - Packaging copies bundled markitdown alongside Pandoc for win/mac/linux; FFmpeg/sharp/KaTeX/fonts were already bundled Legal artifacts: - THIRD-PARTY-NOTICES.md: complete license inventory of everything distributed (binaries, npm runtime deps, fonts, embedded Python packages) - SOURCES.md: GPL §3(b) written source offers for Pandoc 3.9.0.2, ffmpeg-static's GPL build, and the PyInstaller bootloader; LGPL relinking note for libvips - third-party-licenses/: canonical GPL-2.0, LGPL-2.1, MPL-2.0, Apache-2.0, OFL-1.1, PSF-Python texts - Help > Third-Party Notices & Licenses: in-app viewer for both documents - README: 'Bundled Dependencies, Legal Notices & Credits' section Hardening: - download-tools.js now SHA-256 pins every artifact, verifies after download AND against the cache on every run, and hard-fails on mismatch (closes security finding D6) Large tools intentionally not bundled (documented): LibreOffice, MiKTeX/TeX Live, ImageMagick, PlantUML+JRE, Calibre. 637/637 tests green; lint clean; clean boot; bundled binary verified.	2026-09-05 22:30:54 +05:30
amitwh	58bd19ecd1	feat(import): embed Microsoft MarkItDown for any-file → Markdown import - File → Import with MarkItDown (Any Format)…: PDF, DOCX, PPTX, XLSX, Outlook .msg/.eml, EPUB, images, CSV/JSON/XML, ZIP (audio/OCR via the [all] extras) — verified live against HTML, XLSX (our own exporter's output), and PDF fixtures - Command auto-resolution with caching: markitdown binary → python -m markitdown → python3 -m markitdown - SEC-1 argv discipline (execFile only, user paths never through a shell), 50MB cap, 120s timeout, sanitized errors that surface markitdown's own "pip install 'markitdown[pdf]'" hints for missing format extras - Output lands next to the source as <name>.md (numeric suffix, never overwrites) and opens in a new tab; markitdown:available/convert IPC allowlisted for renderer flows - Help → Dependencies lists MarkItDown; README/UPDATES updated (v4.6.1) 12 new tests (629 green); lint clean; clean app boot	2026-09-05 22:10:35 +05:30
amitwh	7ab5a0ddb4	feat(ai): add Anthropic-compatible provider; fix async plugin backends Anthropic-compatible provider: - New 'anthropic-compatible' option for any base URL speaking the Anthropic messages schema (LiteLLM proxies, Bedrock gateways, local servers) - Sends x-api-key AND Bearer auth when a key is set (gateway-friendly, harmless for the official API); keyless proxies supported - Tolerates base URLs with or without a trailing /v1 segment - Settings modal, manifest, and provider docs updated Runtime bug fixes found by booting the app (run-to-verify pass): - PDF editor: File > Open PDF sends operation=null which matched no switch case and crashed on getElementById(undefined); now defaults to the merge section - backlinks-panel: wrong require depth (../../utils -> ../utils) threw at panel registration time - writing-studio stack was written against a synchronous settings backend but the real one is IPC-backed: GoalTracker/SnapshotManager/ProjectManager and all four panels now await; JSON.parse(Promise) crashes eliminated - manuscript panel used window.prompt (unavailable in Electron); replaced with an inline dialog - collaboration comment-store/save-load made async to match its IPC IO 617/617 tests green; 4 consecutive clean app boots (no uncaught errors)	2026-09-05 21:53:34 +05:30