x3i

Second this. Did it a few weeks ago, works perfectly fine. Paid 50€ for a four year old Acer Chromebook 11 and followed the matching guide here: https://mrchromebox.tech/#devices
(Don’t buy my model, the keyboard is crap)

I don’t see anyone mentioning sth power efficient yet, so I will throw my two cents in here; I just ordered an Odroid M1S to take over some jobs from my RPi4 (8GB). Has not yet arrived so I cannot praise it yet but might be worth a look!

Same problem here, this is my solution:

exec-once = bash -c 'until waybar; do echo "Waybar crashed with exit code $?.  Respawning..." >&2; done'

Does anyone know if this is applicable to any ARM64 devices? I’d like to test NixOS on a cheap device and I did not find anything on usable ARM64 devices