FM Chat

A focused macOS chat for Apple's on-device Foundation Models, powered by fmgo & Wails.

FM Chat is a small, native-feeling macOS application that demonstrates how to use fmgo, a Go wrapper for the macOS Foundation Models CLI.

It runs the system model on-device, streams responses, persists conversations locally, and keeps selected images inside the app's Application Support directory. No API key, account, or network service is required.

Preview

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Features

• On-device Foundation Models through fmgo.
• Streaming responses with an active generation state.
• Local conversation history and image storage.
• Image uploads for multimodal prompts.
• Automatic light/dark appearance with a manual theme toggle.

Requirements

• macOS 27 or later on Apple Silicon.
• Apple Intelligence enabled.
• Foundation Models CLI terms accepted.
• The native /usr/bin/fm command available.

Development

Install the project dependencies and start the Wails development app:

wails dev

Build the signed local macOS application:

wails build

The frontend can also be checked and built independently:

cd frontend
npm run check
npm run build