Rewriting all of Rails to a different language would be a humongous effort. And as you've mentioned it's been done tons of time already: almost every language h

Rewriting all of Rails to a different language would be a humongous effort. And as you've mentioned it's been done tons of time already: almost every language has a "Rails-y" framework. Some are good, some a bit less so, but they exist. Rails in $other_language would also no longer be Rails, because other languages have different ways of doing things. In short, if you don't want to use Ruby, then don't use Rails. Also, many large Rails services have some performance-critical parts written in $other_language such as Elixer, Go, Rust, etc. "Using Rails" doesn't mean you need to use it for every last bit.