Yes, I am aware of where this is posted and am prepared for my inevitable crucifixion as a result of this observation. But, like... is this really a problem that requires a self hosting solution? That seems like quite the overcomplication to me unless you absolutely require access to your entire selection on multiple devices that will have 24/7 network connections for some reason. I imagine most people actually don't. And if you do, a simple file share is probably a less convoluted solution, and surely already exists on the server you already have.
MP3's take up negligible amounts of storage space on modern devices and can be played on anything, and can be easily taken with you anywhere including out of network range.
I guess teaching people how to drag-and-drop audio files onto their phone and open them with VLC would be a much shorter article.
(Ed: Punctuation.)