Open-sourcing Sorbet: a fast, powerful type checker for Ruby · Sorbet

We’re excited to announce that Sorbet is now open source and you can try it today. Sorbet is a fast, powerful type checker designed for Ruby. It scales to codebases with millions of lines of code and can be adopted incrementally.We designed Sorbet to be used at Stripe, where the vast majority of our code is written in Ruby. We’ve spent the last year and a half developing and adopting Sorbet internally, and we’re finally confident that Sorbet is not just an experimental, internal project—we’re ready to share Sorbet with the entire Ruby community. In fact, we’ve had more than 30 companies beta test Sorbet and provide feedback.