Hi I have the same issue... I finally had time to setup a clean new build
Everything seems working fine except the nvidia driver of course that doesn´t want to install because of unsupported OS Version macOS Sierra 10.12.1 (16B2657)...
The newest driver from Nvidia :
http://www.nvidia.com/download/driverResults.aspx/110124/en-us is version 367.15.10.15f01 and supports up to macOS Sierra 10.12.1 (16B2555)..
I tried
BreBo´s tip to change the NVDARequiredOS, but I do not really know what to put in there.
tried :
<key>NVDARequiredOS</key>
<string>
16B2657</string>
or <string>
10.12.1 (16B2657)</string>
or <string>
10.12.1</string>
but nothing changed or worked.
You can edit the distribution file inside the installer package.
as
Slim.jim would destroy package signment and it's not quit clear for me how it should be done.
Is there anything else I could try except waiting for an official release ?
And how fast is Nvidia with updating those drivers to the newest OS Version ?
Thanks !