this post was submitted on 03 Nov 2026
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Privacy
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people better get familiar with docker
Mind giving a bit of a breakdown of why? I'm new to Linux and heard a lot about docker (I think its like separate boxes for an apps?) after I switched and it just seemed too much at the time so I've put it on the back burner (was stotally new to terminal stuff).
I'm about to try rigging up an old laptop for self hosting and trying to learn. Was thinking of figuring out docker first before trying immich, keepass, calendar with calDAV and it's all pretty overwhelming lol.
Running apps directly on Linux is like cooking in a shared kitchen where everyone shares the same spice rack. If one app needs an updated spice that breaks the recipe, your whole kitchen suffers.
Docker is like giving every app its own private kitchen pod with all its exact ingredients pre-packaged inside. Nothing leaks out, nothing interferes with the rest of your system, and if an app breaks, you just throw the whole pod away and start fresh without touching your main computer.
Once you get used to docker, you can stand up 20 apps in a night with standard configs and it all just works.
Later on, if you start really homelabbing it, you can stand up 3 small computers and cluster them to keep a copy of each container you're using up. If one of the boxes go down, they just shuffle and start the container on other nodes.