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README.md
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package.json
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README.md

GemType Desktop

Fix and rewrite text in any application on your computer — Word, Slack, email clients, editors, anything where text can be selected. Same bring-your-own-key model as every GemType surface: your text goes straight to Google's Gemini API with your key; there is no GemType server.

How it works

  1. Select text in any app.
  2. Press the global hotkey — ⌘⇧G on Mac, Ctrl+Shift+G on Windows.
  3. GemType grabs the selection, fixes it with Gemini, and shows a small popup.
  4. Press Enter to paste the fix back over your selection (your clipboard is restored afterward). Or pick another action: Improve, Shorten, Formal, Casual.

Because the capture rides on select-and-copy rather than per-app integrations, it works in effectively every application — no compatibility list.

Run it (development)

Requires Node.js.

cd desktop
npm install
npm start

A gem icon appears in the menu bar (Mac) / system tray (Windows). First run opens Settings — paste your free Gemini API key from aistudio.google.com/apikey and click Save & test.

macOS: the first hotkey press asks for Accessibility permission (System Settings → Privacy & Security → Accessibility). That permission is what lets GemType send the copy/paste keystrokes — standard for tools like this (Grammarly Desktop, Raycast, etc. require the same).

Files

desktop/
├── main.js          Electron main: tray, hotkey, clipboard capture, paste-back
├── gemini.js        Gemini API calls (Node; unit-tested with a stubbed fetch)
├── popup.html       the result popup (Replace / Copy / action chips)
├── settings.html    API key, model, language
├── assets/          icons
└── test/            plain-node tests: `npm test`

Download

Prebuilt apps are attached to the latest release: macOS (.dmg / .zip), Windows (.exe installer / .zip), Linux (.AppImage).

Packaging

electron-builder builds all three platforms:

npm run dist -- --mac     # dmg + zip
npm run dist -- --win     # nsis installer + zip
npm run dist -- --linux   # AppImage

Notes:

  • Windows: distributable immediately; unsigned builds show a SmartScreen warning (a code-signing certificate removes it — optional).
  • Linux: the AppImage is portable — chmod +x and run.
  • macOS: builds run unsigned for local/direct distribution (Gatekeeper shows an "unidentified developer" notice). App Store / notarized distribution needs the Apple Developer Program ($99/yr) — the same membership that unlocks the Safari extension.

Roadmap

  • Stage 2: live checking in accessibility-friendly apps (suggestion card near the caret) via AX (macOS) / UI Automation (Windows).
  • Stage 3: inline underlines in apps that report text bounds.