I'd highly recommend to take a deeper look into Docker. While it might look complicated at first, it really isn't. Once you get the gist of it, you'r setup life will me much simpler in the future.

In a nutshell: Say you need to run jellyfin (or whatever)

Generally, you'd need to install jellyfin from the repos or download it's binary, etc... Then you'd have to dig through the configuration process, where files are scattered all across the system. Probably, in some cases, you'd have to copy/move/symlink media files around, etc.

With Docker however, you just spin up the jellyfin as a container, and bind the necessery configuration and media files to that container, which is usually a one-liner.

So instead of having scattered config files all around the place, you can have something like ~/Docker/configs/jellyfinn and bind that folder (or file) to the containers /etc/jellyfin. And you can use the same approach to have your media files in ~/Movies and bind thst to jellyfin /data folder. These are just examples, you'll just have to look where the docker containers expect the files to be, which is usually well documented.

And the final step is to bind the ports of the container to the host, so you can interact with the service as if it was running on the host.