pow: Zero-configuration Rack server for Mac OS X

I’ve been a long-time Passenger user to switch between multiple Ruby web apps during development without needing to crank up rails s for each. When I began using RVM to switch back and forth between multiple Ruby versions, Passenger no longer solved my problem. That’s why I’m excited to try out Pow from 37 Signals. Pow aims to be “a zero-config Rack server for Mac OS X.”

To install, run the install script

curl get.pow.cx | sh

To add apps, just symlink them to your ~/.pow folder:

$ cd ~/.pow
$ ln -s /path/to/myapp

… and browse to http://myapp.dev/.

[Source on GitHub] [Annotated Source]