About

Hi, I'm Kevin. I build tools for humans and agents.

I created Dendron, an open-source, local-first note-taking tool for developers, and ran it as a startup for several years. These days I work at OpenAI.

This site is where I write things down — longer posts under Writing, and short notes on things I figure out under TIL.

If this is your first time here, check out highlights for some of my popular posts.

Find me elsewhere: GitHub · X · Substack · or subscribe via RSS.