Tauri Setup

Prerequisites

• Rust 1.75+
• Node.js 18+
• System dependencies (Linux only):

  sudo apt install libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev patchelf

Build

cd frontend
npm install
npm run tauri build

This produces:

• Linux: .deb and .AppImage in frontend/src-tauri/target/release/bundle/
• macOS: .app and .dmg in frontend/src-tauri/target/release/bundle/macos/
• Windows: .msi and .exe in frontend/src-tauri/target/release/bundle/msi/

Development

cd frontend
npm run tauri dev

This starts the desktop app with hot-reload for frontend changes.

What It Does

The Tauri app:

1. Starts the Fastlane proxy in the background
2. Opens a native window with the dashboard
3. Shows routing decisions in real-time
4. Lets you configure settings via the GUI

How It Works

The app is a thin shell around the same Rust core as the CLI:

┌─────────────────────────────┐
│      Tauri Window           │
│  ┌───────────────────────┐  │
│  │   React Dashboard     │  │
│  └───────────┬───────────┘  │
│              │              │
│  ┌───────────▼───────────┐  │
│  │   fastlane-core       │  │
│  │   (same as CLI)       │  │
│  └───────────┬───────────┘  │
│              │              │
│  ┌───────────▼───────────┐  │
│  │   Axum Server         │  │
│  │   127.0.0.1:8787      │  │
│  └───────────────────────┘  │
└─────────────────────────────┘