A modular IDE for JesuSonic written in Adobe Air
You can use JSFXGEN to create a wide variety of different FX via reusable, user-created modules.
JSFXGEN provides a built-in text editor and modular arranger with drag and drop routing.
JSFXGEN is cross-platform and it works on Mac OS X, Windows and Linux.
Detailed instructions on how to install and use the JSFXGEN utility on your Mac are available HERE.