React Native Patterns Performance and architecture patterns for React Native + Expo apps. Rules ranked by impact — fix CRITICAL before touching MEDIUM. This is a starting point. The skill will grow as you build more mobile apps. When to Apply - Building new React Native or Expo apps - Optimising list and scroll performance - Implementing animations - Reviewing mobile code for performance issues - Setting up a new Expo project 1. List Performance (CRITICAL) Lists are the #1 performance issue in React Native. A janky scroll kills the entire app experience. | Pattern | Problem | Fix | |---------…