Micro-SaaS 90-Day Build — Stripe·Supabase·Vercel Free Plan to $1,200 MRR (2026)
Building a micro-SaaS in 90 days using Stripe checkout, Supabase Auth, and Vercel Functions on free plans. Code-level guide covering Phase 1 MVP, Phase 2 payment integration with webhooks, and Phase 3 reaching 48 paying users at $1,200 MRR.