The SaaS Launch Kit (Next.js Boilerplate)

The structure, code patterns, and go-to-market playbook for shipping a production SaaS without rebuilding the boring 80 percent. Auth, Stripe billing, database schema, deploy, plus a launch checklist and pricing guide.

This is a reference build. It gives you the directory layout, the key code patterns for each subsystem, the canonical database schema, the deploy steps, and the launch plan. Copy the patterns, fill in your product, ship.

What is inside:

• The full Next.js App Router directory structure with marketing, auth, and gated-app route groups
• The canonical Postgres schema including the org layer you will wish you had added later
• Auth patterns: session helpers, a single layout guard, password and reset handling
• Stripe billing done correctly: plans as a single source of truth, checkout, the webhook as the source of truth, billing portal, and entitlement checks
• The two billing rules that prevent the most common SaaS bugs
• A deployment walkthrough and a complete pre-launch checklist
• A go-to-market launch plan: positioning, a pricing guide, the launch sequence, and channels that work for indie SaaS
• A list of common mistakes the kit prevents

Built for indie hackers and developers who want to spend their time on the product, not the plumbing. Launch targets are framed as goals to instrument and hit, not promised revenue.