iATKOS Inside: Trying to find a suitable guide for big sur, I’m struggling to follow the open core guide when it comes down to compiling the confit.plist is that the best guide to follow, any help greatly appreciated?

Trying to find a suitable guide for big sur, I’m struggling to follow the open core guide when it comes down to compiling the confit.plist is that the best guide to follow, any help greatly appreciated?

My specs as follow,