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nextjs-react-expert
React 19 and Next.js 16 performance optimization from Vercel Engineering. 57 rules prioritized by impact - eliminate waterfalls, reduce bundle size, server/client-side optimizations. Covers App Router, Server Components, RSC streaming, Turbopack, React Compiler, Core Web Vitals (LCP/INP/CLS), bundle analysis. Use when profiling, reviewing code for perf issues, or optimizing production React/Next.js apps.
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