FinalMix is developed as a open multiplatform software and a great care was taken to support portability to various platform (both hardware and OS).
The most important part of this effort is the use of wxWidgets GUI library, which is already ported to many common platforms and APIs (Win32, GTK, Motif, MacOS X) and has a potential to be easily ported to others.
There is some other specific software on some platforms which is either needed to succesfully build FinalMix from sources or which is an important development tool.