SaaS MVP in 30 days — how we do it

30 days isn't magic, it's scope discipline. MVP = one problem, one user, one flow that works.

Stack 2026: TanStack Start / Next.js + Supabase (auth, DB, storage) + Stripe + Resend + Cloudflare. All serverless, edge, scalable from day 1.

Week 1: discovery + design + DB schema. Week 2: auth + core feature. Week 3: payments + dashboard. Week 4: tests + deploy + onboarding.

Pitfalls: feature creep, UI perfectionism, no market validation before building. Fix: brutally cut everything that isn't core.

Typical MVP cost: €10k–25k. Then 2-week iteration cycles based on real user feedback.