Building an AI Invoice Generator in a Week (Week...

Week 8 of my NanoCrafts build curriculum had one goal: ship a second SaaS product fast. After spending seven weeks building Resume AI Tailor — a full-stack AI resume rewriter with Stripe, usage limits, and saved resumes — I wanted to validate that the patterns I'd built up weren't project-specific. Could I take the same stack and ship something completely different in a single week? The invoice generator was the perfect test. Small scope, clear value, real utility. Type a sentence, get a profess