I don't really know. Isn't there some sort of thing called rockfin or something? @Camillo≋ might know

But we need nostr to take over soulseek chatrooms/messageboards:)

My soulseek download go right inro my navidrome server. For caching tracks, i'm not sure. I use subtracks on android to stream from my sever. Isub client on ios cache your music.