I've never seen a project go so smoothly. Three developers, one fractional head of design, six weeks, virtually no production bugs. No heroics, no overtime — just a solid plan: constrain the problem, hand-craft the building blocks, and let an LLM safely do the manual labour. The pitch The app worked, it was simple, users even called it idiot-proof, but to be fair it didn't do all that much. None of us were really proud of it. The design wasn't consistent anywhere, each feature bu...