Rails Baseline – a Rails SaaS starter with agent-readable architecture

What it does

Rails Baseline is a production-ready SaaS foundation with authentication, accounts, billing, authorization, entitlements, Hotwire, Tailwind, and Kamal — plus the working patterns and architectural context coding agents need to extend it consistently. Codex, Claude, and Cursor can generate a Rails application from scratch in minutes. That isn’t the expensive part anymore. A blank repository still gives the agent almost no local precedent for how your application is supposed to work. Rails Baseline handles the repetitive setup once. After that, you and your coding agent keep working in a normal Rails repository with good examples already in place. Personalize it once, prepare the app, then…from railsbaseline.com

• 
  Rails UIJan 2026 · railsui.com · ▲208

  AI writes your Rails code. Rails UI makes it look like a real product. Complete, coherent product flows for Rails SaaS: auth, dashboards, billing, and email, designed as one system.

• 
  Open SaaS2024 · github.com · ▲505

  Open-source & 100% free React & Node.js SaaS starter

• 
  AI Starter2023 · aistarter.co · ▲245

  An instantly deployable, fully customizable AI SaaS business

• 
  The SaaS factory2023 · thesaasfactory.dev · ▲173

  Boost your SaaS development with ready-to-use starter kits

• 
  Build A SaaS App in Rails 6 – book2020 · buildasaasappinrails.com · ▲8

  Learn how to build a production SaaS application in Ruby on Rails 8. 400+ page book covering authentication, Hotwire, Solid Queue, Stripe payments, webhooks, GitHub integrations, and Kamal 2 deployment. By Rob Race.

• 
  SaaS template/boilerplate w SvelteKit, Tailwind, Supabase and Postgres2024 · saasstarter.work · ▲38

  Hi HN, Releasing a new SaaS template/boilerplate built with SvelteKit, Tailwind, Supabase & Postgres. It’s called SaasStarter.work - MIT Open Source: https://github.com/CriticalMoments/CMSaasStarter - Feature Rich: user auth, user dashboard, marketing site, billing/subscriptions, pricing page, blog engine, and more - Very fast: perfect PageSpeed scores, achieved with pre-rendering and pre-compiling. - Extensible: all the tools you need to make additional marketing pages, UI components, admin portals, database backends, API endpoints, etc. - Hosting: Free to…

• 
  Spira Maxima▲578

  Video model that turns script into viral social media videos

  AI · 19d ago · spira.ai

• 
  Rill Browser▲540

  The browser where Claude Code and Codex work beside you

  AI · 19d ago · rill.love

• 
  Germany's new sovereign AI model Kolibri▲424

  Kolibri is Aleph Alpha

  AI · 21d ago · tej.as

• 
  Giving Opus 5.5 a simulated paint canvas▲392

  Paintings by AI models: programs run through a simulation of oil paint.

  AI · 22d ago · stillwet.art

• 
  Beam.win▲379

  Run AI agents on one Mac and use its windows on another

  AI · 5d ago · beam.win

• 
  FastRouter.ai▲364

  Route requests to the right LLM for cost, latency & quality

  AI · 23d ago · fastrouter.ai

• 
  An e-ink frame that hears birds and draws them as 1800s illustrations▲2,389

  E-ink bird frame for Raspberry Pi - real-time bird detection by audio, fully local AI, rendered as real, hand-cut 1800s bird illustrations. - arnegiacomo/fugleramme

  AI · Sep 2026 · github.com

• WI
  What if the speed of light was 5 km/h?▲629

  Special relativity simulator in which light crawls along at a human speed, so Lorentz contraction, aberration and Doppler shift happen at walking pace.

  Life & fun · Sep 2026 · rivendell.dmitrybrant.com

• 
  Jev▲544

  Fast, structured AI decisions for software automation

  AI · Sep 2026 · console.typesafe.ai

• 
  ReSO AI▲510

  Get discovered & recommended when customers ask AI

  AI · Sep 2026 · resollm.ai

• 
  Kilo Code for iOS and Android▲498

  Start coding agents, control sessions, review PRs. Anywhere.

  Dev tools · Sep 2026 · kilo.ai

• 
  AINA▲497

  Find your job search blind spots with an AI coach

  AI · Sep 2026 · aina-tech.io