It makes me wonder how compromised the prosumer/enthusiast motherboards are. All of my important home systems are homebuilds using off-the-shelf motherboards purchased in person, and lack any IPMI access. Sure there's AMD's PSP (grumble, grumble) in my Ryzen box, but I can't help wonder what might be lurking on the motherboards, or for that matter in my network switch, router, access point, etc.

I've sometimes thought about picking up some type of used rackmount server, but hacks like this give me cold feet - aside from the usual issue of 1U/2U boxes sounding like jets taking off.