I got an old desktop for 30 euros off of Facebook marketplace. If you look long enough, sometimes you find free laptops with broken screens that make for perfect servers.

Same. One single docker compose, and a dozen images. I get to take advantage of publicly available docker images too which makes managing and updating things a breeze.

This is also true for laptops BTW. I remember older Dell XPS laptops used to be super picky about USB-C dongles with