There seems to be two python scripts by Herbert Poetzl in the /software/scripts folder that are copyright-encumbered and make no reference to any open source license.
https://github.com/apertus-open-source-cinema/beta-software/blob/master/software/scripts/gpio.py
https://github.com/apertus-open-source-cinema/beta-software/blob/master/software/scripts/rf_sel.py
Just thought I'd share.