[PROBLEM] Argon One M.2 Case Gpio Script

[Nachteule]

I don't want to seem rude, but how do you envision this?

First, the script is developed by another user and he explicitly writes there that Pi OS is assumed. In plain text, he does not support any other operating system.
Second, without the case it is practically impossible to change this script successfully with reasonable effort.

So the only viable way would be to contact the author on github and request XBian support.