Engineering notes
What we actually run into building web applications and AI automations - stack decisions, real project costs, and the bugs we keep finding in other people's code.
RAG, fine-tuning, or just a better prompt?
Most AI projects reach for RAG before they need it. A decision tree for operations teams, and the three questions that settle it in an afternoon.
Is your API key in the browser bundle?
Secrets leak into frontend bundles constantly, and NEXT_PUBLIC_ is not the culprit people think it is. A 30-second check, and the fix that actually holds.