This looks cool. But I don't understand why anyone would so narrowly target the RPi as a software platform without good reason. In this case, most of the code

This looks cool. But I don't understand why anyone would so narrowly target the RPi as a software platform without good reason. In this case, most of the code seems to be abstracted from the hardware through the cross-platform Allegro framework. So it is hardly any more effort to make this portable to other hardware platforms running Linux or even BSD.