Running Bookworm, Plasma DE if that's relevant.

Background: I'm learning here. Decent amount of coding and embedded hardware experience but I'm usually missing one or two key concepts with this stuff.

Getting a box running, and wrestling with NVIDIA drivers. I successfully installed the driver (I think), but now lightdm isn't working. From what I read it appears there's a common issue around a race condition where lightdm tries to fire up before the drivers ready, so I need to add the nvidia driver to initramfs.

Can anyone give me some pointers? Specifically while I get the above:

1. I'm not sure what modules need to be added and if they're named something specific for debian vs other distros
2. The correct file to modify
3. The correct format/syntax that needs to be added

I've found lots of examples, just none specific to debian, and screwing around at this level I don't want to bork something enough I need to do a bare install.

Thanks for any help!