Builder.
Developer.
Tinkerer.
I build things on the internet — AI agents, self-hosted infrastructure, and tools that make life easier. Writing about what I learn along the way.
Recent Posts
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Building an AI Agent from Scratch
Most AI agent tutorials start with LangChain. I started with a text file and a loop. Here's what I learned building one from the ground up — tool calling, memory, and all the things that break in production.
Cloudflare Workers: The Good Parts
Workers are underrated. You can run code at the edge, store data in R2 and KV, and route traffic globally — all without managing servers. Here's the mental model that unlocked it for me.
Why I Self-Host Everything
n8n, Nextcloud, Vaultwarden, Gitea — my whole stack runs on a single VPS. The cost is under $20/month. The control is priceless. This is how I set it all up with Docker and Cloudflare Tunnels.
About
I'm Itamar Cohen — a developer obsessed with building things that actually work. My stack leans heavily on TypeScript, Cloudflare, and whatever AI model gives me the best results today.
When I'm not shipping code, I'm riding my Husqvarna 701 Enduro or tinkering with 3D printers. I write here about things I figure out — occasionally useful, always honest.