Bei Cocoa Dev Central gibt es ein nettes kleines Tutorial: Building NSMenuExtra.

Die Apple CHUD Tools sind jetzt in der finalen Version 4.0 erschienen.

An Introduction to RubyCocoa, Part 2 by Christopher Roach -- In Part 1 of this two-part series, Christopher Roach provided some background and helped you get started with RubyCocoa programming. In today's conclusion he gets into the actual code ... and if you're following along, you'll end up with a functioning application. Ruby? Ruby is a dynamic object-oriented language created by Yukihiro "Matz" Matsumoto in 1993 as a replacement for Perl. The Ruby language incorporates many of the best features of other existing languages to make it a very powerful and easy-to-use language. Like Smalltalk, Ruby is a pure object-oriented language, meaning that everything in Ruby is an object. [...]