Accord – Serverless Discord Clone Running on Cloudflare Workers
It runs an entire real‑time chat stack on Cloudflare: Durable Objects hold per‑room socket/state, D1 stores message history, R2 handles uploads, and there's mesh WebRTC plus push notifications — neat as a systems demo. Clever and practical as a reference architecture, but mesh video and Durable Object quotas expose scaling tradeoffs if you try to run a large public Discord competitor.