8 months ago I asked this question: "RoR SaaS boilerplate app. Market need?"
Now, after months of work I've completed saas.corsego.com - a Ruby on Rails SaaS Multi-Tenancy boilerplate application.
Core features:
&&& Internationalization (i18n) - supports other languages!
It's not the first application on the market, but I believe it's the best one! (I was creating it in complete consideration of existing competition - bullettrain and jumpstartrails)
Wish me luck 🤞