I would like to know how to install and use this waydroid fork that include multi instance

Hello everyone, so im new to linux (comming from windows) and trying to learn step by step.

I use waydroid to play games and so far its great but i would like to use a multi-instance function to use it with my Card based games (TCG etc ...). After some research i've found this :

https://github.com/taksan/waydroid/tree/feat/multi-instance

But unlike the installation process of the "classic" Waydroid, this one is only a deposit with some files i dont know.

Can someone explain how can i get this installed and the way to use it pls.

Im on Zorin OS 18 Pro (Ubuntu based)