Architecture Case Study: saas-mvp

Rapid SaaS MVP

"You have a validated idea and paying customers waiting. But building auth, payments, and a scalable backend from scratch means months of development. By then, your competitor launches first."

CONSTRAINT: Zero to Revenue in 14 Days

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Technical Implementation

Vertical slice architecture with managed services. Next.js 16 App Router for server-side rendering at the edge. Supabase provides PostgreSQL with Row Level Security (RLS)—auth and authorization in one. Stripe Checkout handles subscriptions with webhook sync to your database. All infrastructure scales automatically.

ADR: DECISION: Supabase over custom backend (Express/Django). RATIONALE: Building auth, password reset, session management, and database migrations takes 4-6 weeks minimum. Supabase provides all of this on day one. RLS policies replace custom middleware. When you outgrow it, the PostgreSQL database is fully portable.