Front-End

69 prioritized React performance rules covering waterfalls, bundle size, re-renders, and advanced patterns

Compound components, render props, and context patterns for scalable component APIs

Discriminated unions, conditional types, template literals, and utility type patterns

Design system implementation with Tailwind: tokens, variants, and component patterns

NativeWind and Tailwind setup in Expo with correct native class handling

React Native best practices: performance, navigation, native modules, and platform APIs

Mobile-first design patterns for iOS and Android: gestures, safe areas, and native feel