

Yes, I am aware of where this is posted and am prepared for my inevitable crucifixion as a result. 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.
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.
Yes they can, via images embedded in their ID3 tags. This is supported by a huge array of players in terms of both physical hardware and software.
Yes they can, via many players (including both VLC which is what I use, and also my car stereo).
This much is true, at least in the players I use. There’s probably a solution with some specific player somewhere.
But specifically for audiobooks, I don’t… need… to play across multiple devices. I listen via only two methods: My headphones (which are driven by my phone) and in my car (which works with my phone). I only actually use one player. It goes with me everywhere. Ours go with most of us everywhere; we’re naked without 'em.
If your use case requires a networked solution, you do you. I’m just saying, don’t automatically get blinded by how the Streaming Era has kind of fucked up everyone’s brains.