CLI
CLI Reference
All expo-air CLI commands and options
expo-air init
Initialize expo-air in your project. Creates configuration files and runs prebuild.
npx expo-air@latest initexpo-air fly
Build, install on a real iOS device, and start everything with Cloudflare tunnels. Use this when your device is not on the same network.
npx expo-air@latest flyThis command:
- Allocates ports for all three servers
- Creates Cloudflare tunnels for remote access
- Updates
.expo-air.local.jsonwith tunnel URLs - Builds and installs the app on your connected device
- Starts the prompt server and both Metro instances
| Flag | Description |
|---|---|
--force | Overwrite existing configuration files |
--skip-prebuild | Skip running expo prebuild after init |
expo-air start
Start the full development environment — prompt server, widget Metro, app Metro, and tunnels.
npx expo-air@latest start [options]| Flag | Default | Description |
|---|---|---|
--port <number> | 3847 | Prompt server WebSocket port |
--widget-port <number> | 8082 | Widget Metro dev server port |
--metro-port <number> | 8081 | App Metro dev server port |
--no-tunnel | — | Skip tunnel setup (local network only) |
--no-build | — | Skip building the app |
--no-server | — | Skip starting the WebSocket server |