Blog

Notes from the team.

Product updates, engineering posts, and field notes from a small team building AI agent powered apps.

April 2026 · Published
Claude Code Handbook — from zero to mastery
After 7 weeks on Claude Code Max, $3,400+ in API-equivalent tokens, and 50+ projects, we wrote everything we wished existed on day one. Three books, 47+ chapters, bilingual EN / 中文. Tens of thousands of reads. Reached the top 10 on Zhejiang University's campus forum.
Read on joeyyu23.github.io ↗
May 2026 · Draft
Building SotaZoo: a multi-product AI agent company
Why we started SotaZoo, why AI agents are the right tool now, and what we mean by 'compounding past the state of the art.'
Read draft ↗
May 2026 · Draft
TennisMatch v1 launch notes
What shipped, what didn't, and what we learned from the first users of TennisMatch.
Read draft ↗
May 2026 · Draft
AI agents, where they actually help
AI agents are showing up in every product these days. Some of those uses are real; many are noise. Where AI agents earn their keep — and where they don't.
Read draft ↗

For an early look at drafts or topic suggestions, get in touch.