j/k. sorbet-rails maintainer here. I agree with the assessment that sorbet doesn't go out of the way to support some Rails feature, eg method overloading or scoping block accurately. Sorbet tool is opinionated about some of the design choices that makes it hard to support Rails' extensive use of meta-programming. That said, Sorbet is still useful in checking the custom code we write on top of Rails and their interactions. It may be hard to type the model files themselves, but we can type-check the code making use of the models! Recently, I started a new project on Rails and it's quite fun building it with type from scratch :D

I find Sorbet a very helpful tool for development. I hope people will give it a try and contribute to tools around it (sorbet-rails included) so that we have great tools to use!

For those who are interested in the topic, I outlined some of the technical challenges with using Sorbet on rails here https://medium.com/czi-technology/static-type-checking-in-ra...