I bought a used Asus Chromebox cn60 for $22, it has a 1 x Celeron 2955U @ 1.4 GHz tossed in 16gigs of ram for an additional ~$15 and a 256gig m.2 ssd for ~$18.

I bought a used Asus Chromebox cn60 for $22, it has a 1 x Celeron 2955U @ 1.4 GHz tossed in 16gigs of ram for an additional ~$15 and a 256gig m.2 ssd for ~$18. All in under $60 for an x86 based cheap low powered home server running Debian. Running several docker containers for over a year and a half now, rock solid. Runs pihole, home assistant, an imgur clone for my wife and all runs through a cloudflare tunnel. Rescue old hardware!