// stack/saas.md

# SaaS MVP Tech Stack

// stack_breakdown

FrontendNext.js (App Router) + Tailwind CSS

BackendNestJS (modular monolith)

DatabasePostgreSQL via Supabase

AuthSupabase Auth (JWT, OAuth, magic link)

HostingVercel (frontend) + Railway (backend)

// cost_estimate

USD range $1,800–$5,000

INR range ₹1.7L–₹4.7L

Timeline 6–8 weeks

// why_this_stack[]

## Why This Stack

01.Next.js App Router gives you SSR, RSC, and API routes in one repo — fewer moving parts.

02.NestJS enforces a scalable module structure from day one, avoiding the "big ball of mud" rewrite at 10k users.

03.Supabase handles auth and DB together, eliminating a whole class of integration bugs at the MVP stage.

// mvp_features[]

—User registration, email verification, password reset

—Subscription plans with Razorpay or Stripe billing

—Role-based access control (admin / member / viewer)

—Usage dashboard and in-app notifications

—Team/organization management with invites

// risk_flags[]

!Supabase row-level security needs careful setup — skip it and you risk data leaks across tenants.

!Next.js caching behaviour changed significantly in v14/v15 — budget time to understand ISR vs. server actions.

Get a scope, timeline, and cost estimate tailored to your specific SaaS project — free, no sign-up.

// related_resources