Asus numberpad driver

Hello,
I have a vivobook with numberpad on touchpad.
There is a driver what working well on Fedora KDE Spin: GitHub - mohamed-badaoui/asus-touchpad-numpad-driver: Activate Numpad inside the touchpad with top right corner switch
How should I install it so that it works here as well on kinoite too?

You need to make it into an RPM to install it in a clean way

It should be possible to make an RPM package out of the content of the repo using FPM.

Then you can overlay that package on Kinoite.

And how can I make it into RPM please?

Here are two examples of people using FPM to create RPM packages:

See: fpm - packaging made simple — fpm - packaging made simple 1.9.0 documentation