how to install nvidia drivers on holoiso

Here is how to install nvidia drivers in HoloISO in order to be able to use the steam deck ui.

UPDATE: Do not use the 535.54.03 as it broke wayland again, instead use 525.116.04. Thanks NVIDIA :D

NOTICE: This will work only on desktops with a dedicated NVIDIA GPU. Intel iGPU support, at the time of writing, is still broken and will not display anything, which means that laptops where the main GPU is the intel integrated one will not work.

This setup can also work with amd laptops with nvidia dedicated gpus, however I don't have such hardware to test. I presume that the integrated GPU will work fine and you will see the steamos interface, however to get the dedicated NVIDIA GPU working you're gonna have to do more work.

Chapters:
0:00 Booting up the ISO for the 1st time
0:36 Installing HoloISO
0:55 Installing firefox
2:00 Downloading the nvidia drivers
3:06 Chrooting into the holoiso installed system and copying the nvidia drivers over
3:56 "Installing" the nvidia drivers from the chroot and then rebooting
5:07 Rebooting to the installed system
6:21 Going to a tty
6:50 Actually installing the nvidia drivers
10:20 Troubleshooting different errors and more information