You wrote in your JS MVC and the simplicity: tie me better! post, that you use Draper and Jbuilder to build an interface between the Rails' controller and Joosy's view.
An advanced guide covering that would be a nice addition.
If you think this would be beyond the scope of the guide I would appreciate a gist. But then, Joosy would not quite be integrated with Rails — but that's another story to be told another day …