I’m curious about NERF. What hardware do I need to run it? Is the HW-support as limited as Coreboot? And what do I do if I decide it’s not for me? Are there k

I’m curious about NERF. What hardware do I need to run it? Is the HW-support as limited as Coreboot? And what do I do if I decide it’s not for me? Are there known safe ways to revert to your mainboards factory firmware?