I installed Debian 12 on my 14yo Pentium E5400 PC with 4GB RAM. I have installed on it: Pi-Hole, Jellyfin, Deluge, Grocy, Heimdall, HortusFox, Inventree, Portainer, Radicale, Speedtest Tracker, Trilium, WatchYourLan. Also have various samba shares. In the last year I have learnt a lot of server/Docker stuff, my server is not connected to Internet though. It’s been fun. I have had luck watching some HD videos through Jellyfin but others totally spike processor load avg. to 20 when normal values is 0.2, lol.