> How much time did you have to spend fiddling with your config to get it working? Does it work reliably? Last I checked, it wasn't even possible with an NVIDIA card

Max an hour. It's an Intel GPU on a cheapo netbook (hence the need to make it as efficient as possible). Arch wiki is quite decent for this kind of stuff.

I don't know about NVIDIA, I didn't own one since a long time.