I built a vertically integrated commerce system with AI — and accidentally discovered 4 governance patterns

A barista building a custom commerce platform used Claude to audit the full workflow after months of recurring sync bugs.

The audit exposed unprotected nodes and shared root causes, letting the builder fix four blocker areas at once.

The system spans Supabase and Vue 3, and the author argues AI pair programming can help solo maintainers govern complex business software.

The post also adds reminders and markdown notes to preserve governance patterns for future AI sessions.