This library is called opn. It will simply output the name of the class. Optionally, you can assign another namespace to report with. For an explanation, just look at the few examples under the test/ directory. Version 1.0.2 now has a proper module, called Opn, and Opn has only one method called opn(). If you have specific suggestions to make this gem more useful for others, please drop me an email at: firstname.lastname@example.org Thank you.