alt Hacker NewsWent a slightly different angle - Rasp 4s aren't impressing anyone these days, but 3 of them make for a fine HA controlplane. Once you've got a stable HA controlplane its much easier to connect whatever hardware you have lying around
(Just don't use SD cards...use M10 optanes). Also...Talos not k3s.
Instead of Rasp 4s, just get a dell optiplex micro, hp elitedesk, lenovo m920q etc - much more stable, quite low power, and can also use it as a true node, and comes with quick sync for video related tasks.
Install proxmox onto each, create talos VM(s) on each for kubernetes nodes, and you are off to races.