CoGe and Module creating

[Το κείμενο διατίθεται μόνο στα Αγγλικά] Dive deeper into the CoGe university and discover how to create your own modules in QC.
-How modules are working?
-What are the published ports?
-Why is it good for me?
I'd answer these questions and I hope your respond gonna be something like this: Let's do one!

You have to bring your Mac Computer with 10.6.7 or higher and Xcode installed (https://developer.apple.com/xcode/) and not to be afraid to use Quartz Composer, it doesn't hurt you!