Descriptions:
Fireship breaks down Cloudflare’s V-Next, a ground-up re-implementation of the Next.js API built on Vite, designed to let developers deploy Next.js apps anywhere without being locked into Vercel’s proprietary runtime. The video explains why the existing OpenNext project — which reverse-engineers Next.js build output — is fragile, and how Cloudflare’s team rebuilt the framework from scratch in roughly one week using AI assistance, achieving 94% Next.js API coverage at a total AI token cost of around $1,100.
The bulk of the video is a live migration of Fireship’s own newsletter site, byes.dev, to V-Next using a Cloudflare-built agent skill inside Cursor. Key compatibility changes include adding `”type”: “module”` to package.json and renaming JSX files to use the `.jsx` extension for Vite. Cloudflare’s own benchmarks show production build times up to 4.4x faster and client bundle sizes 57% smaller than standard Next.js — largely attributable to Vite’s Rolldown Rust-based bundler. Fireship reports 5x faster builds on his own site in informal testing.
The video also contextualizes the Vercel vs. Cloudflare rivalry, including Vercel CTO’s public “slop fork” critique and Guillermo Rauch’s retaliatory migration guide. The honest verdict: V-Next isn’t production-ready yet and migration introduces real edge cases, but the performance gains from Vite’s architecture are significant enough to warrant watching the project closely over the coming months.
📺 Source: Fireship · Published March 02, 2026
🏷️ Format: Hands On Build
