You can put the extension into this websites search field; it will provide information related to it, including how to open them. Source: almost 2 years ago

If you are unsure which application will open the extension you can search for the extension here and read the section titled "programs that open ... files". Source: over 2 years ago

I'm not sure if this would fit all your needs aside from running on Linux but Ampache [1][2] has been around for a very long time and has the ability to mesh with other instances. It started as a small project run by some students at OSU and evolved over time. [1] - https://ampache.org/ [2] - https://github.com/ampache/ampache. - Source: Hacker News / about 1 year ago

Https://ampache.org/ could be an alternative. Source: about 1 year ago

You can also do something such as build a mp3 server on headless Debian install https://ampache.org/. Source: over 1 year ago

Now it's time to make backups of my nextcloud, bitwarden, ampache files. Source: over 1 year ago

Ampache. I've been using it for a while and it's great. I'd suggest using it with Ample, as Ample's UI is better. It supports the Subsonic API, so subsonic clients will work with it. It also supports DAAP and uPnP, for other clients. It has it's own API as well, but not many apps use that. Source: over 1 year ago