Ruby occupies a similar space to Golang in my mind, where it is "just" a solid business oriented language that gets out of your way. It will never wow you like Rust or Haskell and that is fine, because that is not what it is aiming for. Rails is one of best DSLs for writing simple SAAS apps, too.
That said, different usecases require different languages. I would never use Ruby for a compiler project.
That said, different usecases require different languages. I would never use Ruby for a compiler project.