The Apple Intelligence writing suite that escaped the walled garden

What it does

Select text in any application, hit a hotkey, and the tool swaps it for an AI-edited version—proofread, rewritten, summarized, or reshaped by a custom prompt. Invoke it without selecting text and you get a quick LLM chat that forgets everything when you close the window. It also ingests YouTube transcripts and web pages for on-the-fly summaries.

The interesting bit

A high schooler in Bangalore built the original Windows and Linux version; a separate contributor crafted the macOS port in native Swift. That Mac version is the polished sibling: it preserves RTF formatting during proofreading, runs local MLX models on Apple Silicon for fully offline inference, and packs a command editor for reusable custom actions. The Windows and Linux builds are portable tray utilities that lean on the same LLM backends without the native frills.

Key highlights

• BYO intelligence: plug in the free Gemini API, OpenAI-compatible cloud providers, or local engines like Ollama, llama.cpp, and MLX.
• Privacy-first design: API keys and configs never leave your machine, and the chat window wipes its history on exit.
• Custom buttons turn repetitive prompts into one-click system-wide actions.
• Cross-platform scope covers Windows, Linux (x11 best), and macOS 14+.
• Multilingual support on macOS (UI in EN/DE/FR/ES) with claims of broad language handling for commands.

Caveats

• Linux remains work-in-progress, and Wayland support is patchy—expect to wrestle with XWayland or Flatpak permissions.
• Rich-text formatting in Microsoft Word gets stripped, and the default hotkey collides with Word’s “Clear Formatting” shortcut.
• macOS demands Accessibility permissions across the board, plus Screen Recording for certain apps that gate text access.

Verdict

Worth a look if you want subscription-free, system-wide writing assistance with your own API keys or local models. Pass if you live in Wayland-only Linux or need flawless rich-text preservation across every app.