I Built a Chat App That Rewrites Its Own UI in Real Time
SMRTR summary
FlowChat is a multi-user AI chat app where the model responds with raw HTML, CSS, and JavaScript instead of markdown — letting it render playable games, animated backgrounds, and full UI redesigns directly in the browser. Built on Cloudflare Workers and Durable Objects, it uses a custom streaming protocol to surgically update specific DOM nodes without redrawing the whole page. One shift in assumptions unlocked everything.
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