Initially? Not a whole lot. The point though, is that you used ruby/rails to rapidly build a startup, and then you have a successful business that is _stuck wit

Initially? Not a whole lot. The point though, is that you used ruby/rails to rapidly build a startup, and then you have a successful business that is _stuck with a massive ruby/rails monolith_. This is where you start extracting services, or refactoring around engines, or some other strategy - doing that involves a huge amount of careful refactoring, and Sorbet can really help.