Thanks for the kind words. To allay your concerns, Cloud9 isn't embedded at all; it's just the recommended environment if you don't already have something set u

Thanks for the kind words. To allay your concerns, Cloud9 isn't embedded at all; it's just the recommended environment if you don't already have something set up. Anyone who already has Ruby installed, has a favorite text editor, and knows how to use a command-line terminal can still follow the tutorial as written.