Node.js/CoffeeScript powered Rack server. Lovely idea, simple configuration; shame it completely takes over port 80. Some of us write applications in things other than Ruby from time to time. Thinking about the best way of hooking it all together.

"The Passenger preference pane is a preference pane for Mac OS X, it enables you to configure a Rails or Rack application in a matter of seconds." It does. It's very good.

"Rails Metal is a thin wrapper around Rails’ new Rack middleware support." Which means you can process requests outside of ActionPack, which is useful for the odd performance boost in certain places. Interesting to see concerns separating out within Rails like this.

Useful forum thread on downloadable racks for Ableton Live