I'm Zack Guerrand — a 13-year-old founder from the south of France. I run a web agency and I'm building Crew, an AI co-founder for people who build alone. Destination: Y Combinator, Spring '26.
I build things and ship them — Agence 81, a web agency that pays its own bills, and Crew, an AI co-founder for people who work alone.
Most of what I know came from doing the work: shipping fast, breaking what needed breaking, and learning straight from the people building the tools I use every day.
Everything so far is just chapter one.
An AI co-founder for solo founders. Built for people who want to move fast and think clearly — without a team holding them back. It's the tool I wished I had, so I'm building it.
A web agency building high-converting sites for restaurants and SMBs across France. Quiz-based pricing from €590 to €2,390, a Make.com-automated pipeline, and a team of three.
Very impressed by what you've done.
That's the target. I'm going after Y Combinator with Crew — simple as that. Right now I'm learning by doing: running Agence 81, meeting the right people, and shipping every single week.