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Performance and architecture patterns for React Native + Expo apps. Rules ranked by impact — fix CRITICAL before touching MEDIUM.

Structured performance optimization reference for React Native apps covering FPS, bundle size, TTI, and memory. \n \n Organized into 9 JavaScript/React guides (profiling, lists, animations, memory), 9 native optimization guides (Turbo Modules, threading, profiling), and 9 bundling guides (tree shaking, code splitting, size analysis) \n Each reference follows a hybrid format with quick patterns/commands, impact ratings (CRITICAL/HIGH/MEDIUM), and deep-dive explanations with prerequisites and comm

Orchestrates React Native version upgrades with template diffs, dependency resolution, and native platform migration. \n \n Applies canonical rn-diff-purge template diffs to align native iOS and Android configuration with target React Native versions \n Handles package.json dependency updates, CocoaPods and Gradle changes, and breaking API migrations across major and minor version bumps \n Includes Expo SDK upgrade layer for managed Expo projects and post-upgrade verification checklist \n Provid

Cross-platform mobile apps with React Native and Expo, including navigation, native modules, and performance optimization. \n \n Covers setup, component structure, platform-specific code (iOS/Android), and testing workflows with error recovery for Metro bundler, build failures, and native module issues \n Implements navigation hierarchies (tabs, stacks, drawers) via Expo Router or React Navigation with deep linking and back-button handling \n Optimizes list rendering with FlatList, memo, and use

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

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.

Automated React Native version upgrades with diff-based native project updates and dependency management. \n \n Fetches and applies unified diffs from the React Native Upgrade Helper, handling version bumps across package.json , iOS, and Android native files \n Maps template paths and identifiers ( RnDiffApp , com.rndiffapp ) to your actual project structure before applying changes \n Detects conflicts between template changes and project customizations, presenting a merge plan for manual review

$22

React Native component library with Uniwind styling, semantic variants, and compound component patterns. \n \n Built on Uniwind (Tailwind CSS for React Native) with HSL color format; do not apply web HeroUI patterns or colors \n Includes accessible, customizable components (Button, Card, TextField, Dialog) using compound component structure accessed via dot notation \n Provides semantic variants (primary, secondary, tertiary, danger, ghost, outline) that adapt to light/dark themes via CSS variab

Software Mansion's production patterns for React Native apps on the New Architecture.