Like Python and Csound, all these packages are free and open-source. By the way, if you decide to build the system yourself you'll probably need to manually install the CsoundAC modules.

He built a device to play multiple sound files on multiple output devices using off the shelf hardware and software. But maybe a hack like this could be useful in many applications other than just ...

Devs unknowingly use “malicious” modules snuck into official Python repository Code packages available in PyPI contained modified installation scripts.