I wrote an article on how to test controllers outside of a Rails app with RSpec.

I wrote an article on how to use Devise with Ember.js

One of the best new features in Haml 3.2 for me personally is the hyphenate_data_attrs option. Here's what it does.

A nice trick to make your booleans more readable: Readable booleans in Ruby.

I've just released the active_model_pusher gem. It gives you a nice convention on naming channels and events and also serializes records for you. Push with one line of code!