> Multiple different XBMC forks. Multiples different Subsonic forks. Multiple different DNLA servers. Multitudes of web-based servers. CLI MP3 servers.

Big difference between _audio_ streaming and _video_ streaming servers. Video streaming is much more complex and pretty consolidated, as I mentioned.

Audio streaming is much more manageable: no issues with transcoding, acceleration or subtitling, and a radically simpler UI. Also ID3 tags aren't great but they're a pretty universal standard with lots of databases, you don't need to desperately scrape IMDB/TMBD for info.

As a result there are quite a few music servers, often exposing Subsonic compatible APIs, ranging from the minimalistic to the 'I'm trying to do everything Spotify does'.