Hi, I'm Hakan.

Creator of Colanode , an open-source, local-first collaboration platform. Previously, VP of Engineering at Gjirafa, Inc.

Featured

• Building the Colanode Sync Engine

  25 Jan, 2026

  How Colanode uses a local-first model, Yjs, and a revision log to keep nodes consistent across devices.

• Building a Scalable Real‑Time Chat with Cloudflare Durable Objects

  20 Jan, 2026

  How we built a real-time chat on Cloudflare Durable Objects and Workers, tested at 300k concurrent connections.