Comment by haunter

I started buying Lenovo mini PCs instead, 18cm x 18cm x 3cm so it's still really small.

And you can get them dirt cheap nowadays, has proper casing and cooling etc https://psref.lenovo.com/syspool/Sys/PDF/ThinkCentre/ThinkCe...

I have one right next to me, i5-8500T, 32GB RAM, 2x SSDs and currently 5W at idle with powertop auto-tune https://wiki.archlinux.org/title/powertop