Let's say you are done installing the Olarila Vanilla High Sierra OS to your machine, Paste your Open core folder to EFI and reboot.
Once you reboot,
1. Go to App Store and update your High Sierra OS, Should look SOMETHING similar like this:
After update you should have the latest High Sierra build coming from 17G66 you should have something similar like:
macOS High Sierra Version 10.13.6 (Build 17G14033) instead of macOS High Sierra Version 10.13.6 (Build 17G66)
2. Reboot to complete installation, YES.
3. Mount your EFI and open config.plist
4. NVRAM > bootargs > nvda_drv_vrl=1
5. Open Terminal and run:
bash <(curl -s https://raw.githubusercontent.com/Benjamin-Dobell/nvidia-update/master/nvidia-update.sh)
6. Wait finish install and reboot!
Have fun!