Thinking more about it, If you just want to host and not mess around like I do, I would use your current computer, install Docker on it and see how you like it. Host a example website see if you can get it to work, Try a Minecraft server and see if it works… If that’s not for you then you can try VMs with an entire OS. This will be a lot more overhead but it will also work.
After you know what you like (Docker containers or an entire VM), I’d design what you want to do. Are you going to have a lot of people on your Jellyfin and Minecraft servers? how much RAM, CPU, Storage do they use?
Once you have that information, Look at prices, Do you want one big PC and will it do everything you want? If you need to buy several, maybe it’s better to get a bunch of small ones?
If it’s one big PC then you’re done. Get it, install Docker/VM and go.
If you want to play around or you need to get many PCs, do you want to cluster them so Minecraft server can move to a different PC if that PC fails? then do Swarm or K3s if you’re okay with docker.
If you need to do small PCs, maybe you install Docker normally on each and manage them separately.
In the end it’s totally up to you what you do. I use K8s :)
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