The whole system is written in JAVA® and packed as a JAR-file.
(JAVA is a trademark of Sun Microsystems, Inc., USA.)
You therefore need a JRE (Java Runtime Environment, version (1.)6 or later) (You will find it free of charge on the internet.)
You will find the JRE at
resp. as update for the Mac at
The program is portable, 'cause it's written in Java®, it should run on all well-established systems (PC, Mac, Linux usw.); specific system requirements don't exist.
First the program is copied – preferably to a directory (folder) of its own.
The program is started as usual, e.g. by doube-click on its icon.