I'm Sungjune Park. I'm building two companies — Centiments and Coursity — and the system I use to build them is the thing I write about here: a multi-agent Claude Code setup with over a hundred skills that runs marketing, sales, engineering, and operations work across both.
This site documents the process. Some essays are for people opening Claude for the first time. Others go deep on orchestration patterns I use in production every day. Everything here comes from real use, not theory: if I describe a workflow, it's because I ran it, watched it fail, and fixed it.
The best place to start is the essays page. If something doesn't hold up when you try it, I want to know.