Passenger Preference Pane
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.
Most users probably want to download the “stable” 1.2 release.

If you want to contribute to development or want to get the latest version, you can find the source code on Github.
Finally, please report any bugs you might find.
Note that Passenger preference pane requires OS X 10.5.2 (or at least 10.5.0 if you install RubyCocoa 0.13.2 yourself) and Passenger 2.0.1.