Codewyse — custom web, mobile, AI & ML and CRM development
Back to blogSaaS

Building a SaaS MVP in 8 Weeks with Next.js, Stripe and Supabase

The exact stack and timeline we use to ship validated MVPs for funded startups. Auth, billing, multi-tenant — done right.

By Codewyse TeamApril 1, 20268 min read
Building a SaaS MVP in 8 Weeks with Next.js, Stripe and Supabase

Most MVPs ship slow because teams reinvent the same eight things: auth, billing, multi-tenant data, transactional email, file uploads, search, observability and admin. Here’s the stack and 8-week plan we use at Codewyse for funded startup clients.

The stack

Next.js 15 (App Router) on Vercel or AWS Amplify. Supabase for Postgres + auth + storage. Stripe for billing with Stripe Customer Portal for self-serve management. Resend for transactional email. Inngest for background jobs. Posthog for product analytics. Sentry for errors.

Week 1–2: foundation

Set up the repo, CI, deployment pipeline and Supabase schema. Implement auth flows (email/password + OAuth). Build the multi-tenant data model with row-level security from day one — retrofitting tenancy later is brutal.

Week 3–5: core feature

Ship the one feature your investors and earliest users care about. Cut everything else. Real users beat polish.

Week 6: billing

Wire Stripe Checkout, webhooks for subscription state, and a minimal usage meter. Don’t build pricing pages until you have at least 5 paying customers — your pricing will change.

Week 7: polish, week 8: launch

Onboarding flow, empty states, error boundaries, basic SEO. Submit to Product Hunt mid-week to land in the leaderboard window.

Want us to ship your MVP? Book a call.

  • Share On: