They’re available in Soulseek! Both Soulseek and Ampache share the same directory. I was thinking of creating a torrent, but I am still in the process of deduplicating them, so I decided against it.

Why do I see no mentions of Ampache here? From what I found, it was the only program except Navidrome to support nested smart playlist, and Ampache has the editor directly in the web interface.

Anyways, I host mine too! Over 2TB of music files on my server, and it runs pretty well.