Index 02 — Playground
Playground
Things I build on my own time and leave up for anyone to use. Don't read about them. Play with them. Flip a card for the spec.
Era 01 — Acid
The Council
Put a decision in front of four hospitality operators and a chair. Get a verdict you can forward.
Era 02 — Bubblegum
Reprice
Card surcharges come off the bill. Win the margin back without touching the prices regulars remember.
Era 03 — Cobalt
Readout
A feature is not done when it ships. It is done when someone says whether it worked.
Rules
The house rules
Karpathy style: it is what it is
Made, shipped, explained
Every playground has the thing itself, how it works, the decisions behind it, and a guide to build your own.
Honest status
Each one says what it runs on: fixture data, recorded runs or live. Nothing pretends.
Mine, not my employer’s
Built on my own time with generic data. No personas, records or data from the day job.