Expo

A comprehensive performance optimization reference for Expo React Native with 54 rules across 9 categories, from launch time and bundle size down to memory management. Each rule includes priority ratings and specific prefixes for quick lookup. The structure is solid: you get concrete patterns like using FlashList over FlatList, enabling Hermes, avoiding barrel file imports, and leveraging Reanimated for UI thread animations. What makes this useful is the priority system. It steers you toward critical wins first (launch time, bundle size) before you waste time on micro-optimizations. The rules reference detailed markdown files with code examples, so you're not just getting a checklist but actual implementation guidance when you need it.

skills.sh installs: 561
GitHub stars: 222
last updated: Aug 21, 2026

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Install

$ npx -y skills add pproenca/dot-skills --skill expo --agent claude-code

Installs into .claude/skills of the current project.

Files

Community Expo React Native Best Practices

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.

When to Apply

Reference these guidelines when:

Writing new Expo React Native components
Optimizing app startup and Time to Interactive
Implementing lists, images, or animations
Reducing bundle size and memory usage
Reviewing code for mobile performance issues

Rule Categories by Priority

Priority	Category	Impact	Prefix
1	Launch Time Optimization	CRITICAL	`launch-`
2	Bundle Size Optimization	CRITICAL	`bundle-`
3	List Virtualization	HIGH	`list-`
4	Image Optimization	HIGH	`image-`
5	Data Fetching Patterns	HIGH	`data-`
6	Navigation Performance	MEDIUM-HIGH	`nav-`
7	Re-render Prevention	MEDIUM	`rerender-`
8	Animation Performance	MEDIUM	`anim-`
9	Memory Management	LOW-MEDIUM	`mem-`