We've encapsulated 10+ years of React and Next.js optimization knowledge into react-best-practices , a structured repository optimized for AI agents and LLMs.

React performance work is usually, well, reactive. A release goes out, the app feels slower, and the team starts chasing symptoms. That’s expensive, and it’s easy to optimize the wrong thing.

We’ve seen the same root causes across production codebases for more than a decade:

Async work that accidentally becomes sequential

Large client bundles that grow over time

Components that re-render more than they need to

The “why” here is simple: these aren’t micro-optimizations.…