Raspberry PI 3B running os XBian - problem with OnOff SHIM Pimoroni

I really want to install the “OnOff SHIM Pimoroni” overlay for my RPI 3B with the XBian system installed - Kodi 19.3, below is the link to the manufacturer’s website:

As in the instruction given on this page (link above), he enters the following command in the terminal:

curl https://get.pimoroni.com/onoffshim | bash

However, as a result of this command, I am getting the following system message:

xbian @ xbian ~ $ curl https://get.pimoroni.com/onoffshim | bash
% Total% Received% Xferd Average Speed ​​Time Time Time Current
Dload Upload Total Spent Left Speed
100 38 737 100 38 737 0 0 6925 0 0:00:05 0:00:05 -: -: - 9894

This script will install everything needed to use
On / Off SHIM

Always be careful when running scripts and commands copied
from the internet. Ensure they are from a trusted source.

If you want to see what this script does before running it,
you should run: ‘curl https://get.pimoroni.com/onoffshim

Your operating system is not supported, sorry!

The XBian response shows that the current OnOff SHIM Pimoroni software does not support this system. So I have a big request, can You update the scripts so that OnOff SHIM works with the XBian system? My OnOff SHIM overlay is functional because in my earlier OSMC it is installed with the command above and it works fine. However, I really want the overlay to work with my current Xbian system. Can it be done? Thank you in advance for your help and best regards.