Stack · Details
A SaaS boilerplate that ships boring.
The Stack is a production-ready SaaS starter — auth, billing, database, email, analytics — on deliberately boring infrastructure. Free, forever, and the same kit 01 uses to ship its own products.
What's inside
The parts, file by file.
No template variables, no placeholders — the repo ships verbatim and your agent rebrands it at init.
Next.js 16 + React 19
App router, server components, and a marketing/docs surface ready for Fumadocs content.
Cloudflare Workers + D1
The app deploys to the edge with a serverless SQLite database — bindings in wrangler.jsonc, no connection strings.
better-auth
Email OTP and Google sign-in on D1 — sessions, middleware, and protected routes already wired.
Stripe billing
Checkout, customer portal, and webhook handling — Free/Pro tiers work out of the box.
Transactional email + analytics
Resend for email and a vendor-agnostic analytics package — replace either without touching call sites.
Agent skills + brand kit
A handoff prompt, agent skills, and a /brandkit page — the scaffold knows how to present itself.
Scaffold it
One command.
npx startupkit init "My SaaS"Free, forever — no card required.
Boilerplates charge $200+ for less. This is the kit we ship our own products with.