expo▌

Cross-platform mobile app development with Expo Router, NativeWind, and React Native. \n \n Provides navigation patterns using Expo Router for structured, file-based routing in mobile apps \n Includes styling guidance with NativeWind and Tailwind CSS for consistent, utility-first design across platforms \n Covers native UI components including tabs and animation patterns for polished mobile experiences \n Built on React and TypeScript for type-safe, maintainable code \n

Create production-ready Expo React Native apps with:

Comprehensive performance optimization guide for Expo React Native applications. Contains 42 rules across 8 categories, prioritized by impact to guide automated refactoring and code generation.

Copy/paste and tick off:

Guidelines for building high-quality Expo React Native applications with JavaScript, focusing on clean code, modularity, and performance.

Ship Liquid Glass UI that feels native, stays legible, and degrades safely across iOS/Android.

Build Expo apps with React Native 0.76-0.82+ and SDK 52-55, navigating mandatory New Architecture, React 19 changes, and 16 documented breaking changes. \n \n Covers React Native 0.82+ where New Architecture is mandatory and legacy architecture completely removed; includes interop layer guidance for 0.76-0.81 migration path \n Addresses 16 specific breaking changes including propTypes removal, forwardRef deprecation, Swift iOS template migration, Metro log forwarding removal, and Chrome debugger

Structured guidance for upgrading Expo SDK versions and resolving dependency conflicts. \n \n Provides step-by-step upgrade process including diagnostics, cache clearing, and prebuild workflows for native changes \n Covers breaking changes across SDK 53–55, including React 19 migration, New Architecture defaults, React Compiler setup, and native module updates (tabs, audio, video) \n Includes deprecation map for packages like expo-av, expo-permissions, and AsyncStorage with replacement recommend

Comprehensive performance optimization guide for Expo React Native applications. Contains 54 rules across 9 categories, prioritized by impact to guide automated refactoring and code generation.

Expert guidance for building type-safe Expo React Native applications with modern best practices. \n \n Covers TypeScript standards, functional component patterns, and strict mode configuration with interfaces over types \n Includes responsive design strategies using Flexbox, dark mode support, and accessibility standards via ARIA roles \n Addresses performance optimization through image lazy loading, code splitting with Suspense, and state management with Context/Zustand \n Provides error handl