One day this will be a world leading ruby framework.

I couldn't decided if I hated haml or erb more, so one day I will write JRB and it will be great.

Add this line to your application's Gemfile:

gem 'j_rb'

And then execute:

$ bundle

Or install it yourself as:

$ gem install j_rb

Don't

Don't

If you really need to, troll the issues page