In 2024, the median Next.js application ships 1.2MB of uncompressed JavaScript to the client on first load. For 73% of these apps, code splitting with React Suspense could reduce that payload by 40-65% without sacrificing user experience. This guide walks you through implementing production-grade code splitting in Next.js 15 with React 19’s enhanced Suspense primitives, complete with benchmark-validated results and full runnable code. 🔴 Live Ecosystem Stats ⭐ vercel/next.js — 139,209 stars, 30,984 forks 📦 next — 160,854,925 downloads last month Data pulled live from GitHub and npm. 📡 Hacker News Top Stories Right Now Ghostty is leaving GitHub (1711 points) ChatGPT serves ads.…