I know of Rubymine and use it daily. Rubymine sadly gives up if files get too large, which is realistic for `config.rb` even in medium sized Rails projects. Bu

I know of Rubymine and use it daily. Rubymine sadly gives up if files get too large, which is realistic for `config.rb` even in medium sized Rails projects. But I wonder if a language can be considered good for use if you can only really use it within a dedicated, non-free IDE.