Hi Octavian and the others,
Actually CavaPacker is only for Windows available. It is on the plan to make Linux and MacOX X Versions.
There is a special Note about on the website:NOTE: Cava Packager Professional has not yet been released. You can download Version 1.3 of Cava Packager from the links on the right. Version 1.3 is a Windows Only application.
Greetings Alexander