No, I am not the developer. I am just some Anonymous Monk who looked around. $Cava::Pack::BINPATH and $Cava::Pack::RESPATH are documented, but $Cava::Pack::EXEPATH is not but it should be documented :)

I think it sucks Cava::Pack doesn't contain pod, and that the documentation isn't available on the website, but only as part of the program.

I also looked at your PSMEncoder really hard, and if you say there's code for determining $0 in Cava, its well hidden.