This is the EFI folder I use.
For Intel GFX only. It's an early stage, possibly with bugs, but it works so far.
With working FN key-lock.
Audio, brightness keys are working.
F6 = Screenpad toggle on/off.
F7 = Keyboard illumination.
F8 = Show Desktop.
F12 = Start Music Play/Pause.
FN + A = Screenpad brightness.
FN + Space = Battery health charging 80% / 100%.
I use Ventura, Monterey should also work. For BigSur you need the customized AirportItlwm.kext.
Please generate your own Serial, ROM, MLB, UUID.
So far nearly everything works!!??
Edit:
The webcam does not work yet.
Will upload more updates when I have time.