I’m Sidney San Martín.

I write software, make pasta and live concert visuals, and live in NYC.

I’ve tried putting asynchronous programming in C++, putting a window manager in a web browser, and putting live HTML in a terminal. I was in batch[2] of The Recurse Center.

Right now, my favorite programming concepts are coroutines, closures, and idempotence. I daydream about strong AI and making programming easier.

You can find me on GitHub, Twitter, Keybase, and Stack Overflow. You can email me at