How Cloudflare rebuilt Next.js in a weekend
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Cloudflare rebuilt Next.js in a single weekend using Claude in OpenCode, spending just $1,100 in tokens. The result, called vinext, is a Vite plugin that reimplements the Next.js API surface natively for Cloudflare's infrastructure. It builds production apps up to 4x faster and produces 57% smaller client bundles. Cloudflare CTO Dane Knecht frames this as the next evolution of open-source forking, made dramatically cheaper and faster by agentic coding. He argues the build-vs-buy equation has fundamentally changed, shifting engineers from writing code to directing AI agents through plans and specs. While not every team should rebuild everything, Knecht believes agentic coding will spur a wave of purpose-built replacements for aging open-source projects.
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Your inbox, upgraded.Forking code is nothing newReverse engineering Next.jsMore like thisThe results for CloudflareImplications for software engineeringWhen not to rebuildIt’s only the beginningSort: