React Native core components, layout, styling, animations, lists, platform APIs, and best practices. Use when building iOS/Android UIs with native components.
Deep React Native Testing Library (RNTL) reference — v13 (React 18 sync) and v14 (React 19 async), queries, userEvent, matchers, anti-patterns.
React Native ecosystem — navigation, state, data fetching, Reanimated, storage, TypeScript patterns, accessibility, and deep linking.
shadcn/ui-style components for React Native with NativeWind v4, RN Primitives, and CLI scaffolding. Use when building Expo apps with copy-paste UI components, theming, or overlay…
Deep React Native performance — FPS profiling, bundle size, TTI measurement, native threading, memory leaks, and profiling tools.
Expo toolchain for React Native — Expo Router, EAS Build/Update/Deploy, native modules, SDK upgrading, and Expo UI/data patterns.