AIFIRST Vibe coding for 30 days, 200+ hours, 70k lines as a non-developer
The brief
PM-ish background, built an internal tool used by 15 people daily (saves each 4-6h/week).
Key points
- Key: PRD-first, new session per feature, UI before backend, AI-written tests, proper CLAUDE.md, /review on every PR, multi-mode...
Sources
- r/vibecodingreddit.com
- Source codegithub.com