I’m Seb. I like taking things apart to see how they work, then making them work better.

I’ve spent the last 10+ years at the intersection of technology and organization — trust & safety at Meta, platform stuff at Happening, AI tooling at Reflection. The common thread is messy problems that cross boundaries.

Fastpaca is where I write about what I’m learning and publish the tools that come out of it.

Sometimes I take on advisory work if the problem is interesting. If you’re dealing with something that feels like it’s half technical and half organizational, reach out.