for anyone wanting to run this in linux:
the windows binary doesn't work under wine (it even managed to crash my compositor).
what does kind of work is the web version. you first have to locally host it with a http server, then (at least for firefox) you have to comment out the line `element.mozRequestFullScreen();` around line 1009 in the file `js/rmmz_core.js`. (or one of the functions calling it, I kinda was too lazy to root cause it)