I know Jellyfin/Emby is compatible with musuc, but I’m advising you now to not try and cram all your media in one software. I recommend Navidrome as a music hoster. The con is that I haven’t written a guide for it, as I run Proxmox it was almost too easy to need one.

As you’re just starting out I’d recommend picking any Linux distro, putting the ISO on a USB drive and booting the server machine from it to install. Well, you know how to install an OS. Next, install Navidrome (guide) via the Linux or Docker guides, modify the config file to point to your music folder and change any setting you like, for example the port, and run it via systemctl or docker.

After that, login via browser with the given admin creds, make a user account for you and anyone else, install slskd for downloading and beets for correctly organising into the music directory, set up a reverse proxy to point to the Navidrome UI or connect via IP from any Subsonic client.