How to Actually Write a CLAUDE.md — A Solo Indie Dev's Guide From Running 16 Apps

Every time I opened a new session, I was repeating the same things. "Reply in Korean." "Use the App Router, not Pages Router." "Explain in one line before throwing code at me." I'm running 16 apps as a solo indie, and every session felt like a new-hire interview. I put up with this for a month, then drew a conclusion. Stop teaching inside the session — pin it outside the session. That's what CLAUDE.md does. It's an internal wiki you hand to the AI. This is my guide to writing CLAUDE.md , distill