I manage like 200 servers in Google cloud k8s but I don’t think I’d do that for home use. The core purpose is to manage multiple servers and assign processes between them, auto scaling, cluster internal network - running docker containers for single instance apps for personal use doesn’t require this kind of complexity

My NAS software has a docker thing just built into it. I can upload or specify a package and it just runs it on the local hardware. If you have a Linux shell, I guess all you really have to do is run dockerd to start the daemon, make sure your network config allows connections, and upload your docker containers to it for running