I built a SaaS boilerplate with 111 tests and 17 PDF guides. Here's my launch story.

Hey IH,

I'm Alex... solo developer on Cape Cod. After years of building products and watching good ideas die under infrastructure complexity, I built The Unsexy Stack.

What it is: A FastAPI + Next.js 15 SaaS boilerplate sold on Gumroad.

The thesis: Boring tech ships products. PostgreSQL, REST APIs, a monolith. The same patterns Shopify and GitHub built on.

What's different about it:

Most SaaS boilerplates sell you demo-ready code. I wanted to sell production-ready code. So I built:

- 111 tests (71 backend, 40 frontend) with coverage enforcement in CI

- 17 PDF guides... actual documentation, not a README

- 6 architecture diagrams (system overview, auth flow, payment flow, database ERD, deployment)

- A 44-item security checklist covering auth, webhooks, CORS, and everything you need before launch

The stack: FastAPI (async Python), Next.js 15 (React 19), PostgreSQL, Clerk auth, Stripe billing. Two apps, one server.

Pricing: 3 tiers on Gumroad

- Starter ($67): Backend tests, core PDFs, the boilerplate

- Professional ($147): Full test suite, Stripe integration, security checklist, 11 PDFs

- Agency ($297): Everything + Docker, CI/CD, client handoff template, 10-developer license, 1-hour onboarding call

Why I built it: I'm a Python developer. I looked at every SaaS boilerplate on the market. 9 out of 11 are JavaScript-only. The two Python options are either Django (synchronous, frontend bolted on) or backend-only. Nobody combined FastAPI with a modern Next.js frontend. So I built it.

What's next: Gathering feedback, writing comparison content, and eventually adding multi-tenancy to the Agency tier.

Site: theunsexystack.com

Happy to answer any questions about the build, the pricing decisions, or the market.