Zero to App with AI, Part 2: Keeping It Cheap

The dirty secret of AI-assisted development is that the naive way to do it, one enormous chat session, the biggest model, all day, is expensive out of proportion to what you get. Before writing much code for RepRepo, I set up cost controls. The interesting part is that almost none of them rely on me remembering to do anything, which turns out to be the whole trick. If you missed it, Part 1 covered the docs-as-memory setup this all builds on. ...

July 11, 2026 · 6 min · 1096 words · Nate