https://railsbaseline.com

I shipped Rails Baseline 1.0 today.

I’ve spent a lot of my career building SaaS apps in Rails, and a bunch of those lessons also went into my book, Build a SaaS App in Rails 8. Rails Baseline is basically the codebase I would want to start my next Rails SaaS app from.

Coding agents changed what I wanted out of a starter a bit. They can generate plenty of Rails code now, but that makes the architecture and existing patterns in the repo even more important. I wanted something where I could give Codex or Claude a product feature and have it follow the app that was already there instead of making those decisions again.

Baseline includes Rails 8.1, PostgreSQL, Devise, multi-account tenancy, Pundit, Pay/Stripe, Entitlements and Limits, Hotwire/Tailwind, Solid Queue, Kamal, tests and CI. It also includes architecture docs, agent instructions, implementation recipes, and vendor guidance.

Before shipping, I blind-tested the packaged app with fresh Claude and Codex sessions using product prompts without telling them which architecture patterns to use.

The founding release is $129 one-time.