TLDR: If you use vim-ruby and jruby you’re going to have a bad time. 2.5~ seconds to open or save a file kinda bad time. If you want to have your code properly checked on the version of ruby you are working with, tough. Other wise you can add let g:ruby_path in your .vimrc to configure which ruby build you use. Remember that rvm can change your ruby automatically. so be careful.
