expo/tuft-skills.

build-app

Build, run, and debug a mobile app on the user's physical phone from a Tuft machine. Use whenever the user asks to build an app — a brand-new idea or an existing Expo/React Native project — at the start of the session, before scaffolding or picking how to deliver it. The deliverable is the app running on their phone, not a web preview, and the Tuft machine itself serves as the app's backend. Covers scaffolding a new Expo project, deciding between Expo Go and a development build, EAS account/Apple/device setup via the Tuft dashboard flow, making development builds with EAS, exposing Metro remotely with `tuft host` and EXPO_PACKAGER_PROXY_URL, sending the user a working link, and diagnosing device-only failures with Tuft telemetry.

install-xcode

Install a specific Xcode version on a Mac using the xcodes CLI, handing the Apple ID sign-in (password + 2FA) to the user through a shared live terminal. Use when a task needs Xcode/simulators and the machine doesn't have the right version, or the user asks to install/upgrade Xcode.