PMLabs
AI PRODUCT · SOLO BUILD · LIVE
AI-scored system-design practice for product managers. Learn to read a diagram and call the bad architecture tradeoff before it ships.

- Audience
- Senior and lead PMs preparing for the system-design rounds that gate senior roles.
- Pain
- Those rounds screen PMs out, yet there's no realistic way to practise architecture or get scored on it.
- The bet
- PMs don't need to become engineers — they need to read a diagram and call the bad tradeoff before it ships. An AI grader closes that loop in ~30 seconds.
- My move
- Defined the 7-module, 23-challenge curriculum, built the drag-and-drop canvas and the Claude scoring rubric, and shipped paywall, certificates and onboarding solo.
- Outcome
- Live and taking paying users, with AI-scored feedback in about 30 seconds.


