Vercel + Supabase MVP stack — cheap, fast, and still senior-quality
Next.js 16 on Vercel plus Supabase Postgres with correct RLS. The modern indie-hacker stack, built senior. Fixed monthly price.
Who this is for
Solo founder or tiny team who wants the cheapest senior-quality MVP path: Next.js on Vercel plus Supabase (Postgres) as backend.
The pain today
- Supabase is advertised as easy but RLS policies are easy to get wrong.
- Supabase edge functions vs Next.js route handlers is a decision nobody has framed.
- Typed client across Supabase schema is not happening automatically.
- You do not want to pay Laravel + AWS pricing for a 3-user MVP.
The outcome you get
- A senior engineer shipping Next.js 16 plus Supabase Postgres with correct RLS.
- Typed Supabase client generated from the database schema.
- Auth flow (Supabase Auth or Clerk) wired through Next.js middleware.
- Deploy setup that scales with traffic, not a quick hack.
The Vercel + Supabase reference architecture
Next.js 16 App Router on Vercel. Supabase Postgres as the primary data store. Supabase Auth (or Clerk if you want more auth features) as the identity layer. Row-level security policies on every table protecting per-user data. Supabase Storage for file uploads. Generated TypeScript types from the Supabase schema, regenerated on every schema change. React Server Components fetching via Supabase server client (respects RLS automatically). Client Components fetching via Supabase client with RLS enforced at the database. No separate backend service — Supabase IS the backend.
Instill — Next.js 16 + Postgres + Vercel
Instill (SITE-FACTS §6) runs Next.js 16 plus React 19 plus TypeScript plus PostgreSQL plus Vercel plus MCP Protocol. The Postgres is not Supabase specifically, but the architecture is the same pattern: Next.js on Vercel, Postgres as the primary store, typed client, RSC-first data loading. The principles that make Instill work (correct caching, typed everything, tight deploy loop) transfer directly to the Supabase-specific version.
Where Supabase MVPs go wrong
Three common failures. One: RLS not enabled on half the tables, so the anon key can read everything (embarrassing at best, compliance breach at worst). Two: Supabase client used in Server Components with the anon key instead of the server client with the user's JWT — RLS bypassed entirely. Three: No schema migrations in code — the team is clicking schemas in the Supabase UI, which means staging and prod drift. Senior engineering fixes all three explicitly and wires CI to catch regressions.
Pricing and scope
Applications subscription at $3,499 per month flat. Typical Vercel + Supabase MVP ships in 4 to 8 weeks for $3,499 to $7,000 total. Much cheaper than Laravel + AWS for solo-founder-scale work, and equally production-grade if the RLS and auth are done right. 14-day money-back. Cancel anytime.
Recent proof
A comparable engagement, delivered and documented.
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Frequently asked questions
The questions prospects ask before they book.
- Supabase vs Neon vs Vercel Postgres?
- Supabase for the full auth plus storage plus realtime bundle. Neon for pure Postgres with branching (great for PR previews). Vercel Postgres for tight Vercel integration. All three are production-grade.
- Supabase Auth or Clerk?
- Supabase Auth for simple email plus social flows. Clerk for multi-factor, B2B invitations, org management. Clerk costs more but saves 4 to 8 weeks of auth work on any B2B product.
- Edge functions or Next.js route handlers?
- Next.js route handlers for anything that needs the Next.js framework (RSC, middleware, cached fetch). Supabase edge functions for Postgres-adjacent work (triggers, scheduled tasks, webhook receivers).
- RLS verification?
- Automated tests against the Postgres database using pgTAP or a custom test harness that logs in as different users and asserts row visibility. Without this, RLS bugs ship silently.
- Can you migrate from Firebase to Supabase?
- Yes. Firestore to Postgres is a real migration (document to relational). Typical migration 4 to 10 weeks depending on data shape. The audit frames the trade-offs first.
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