I use a smb share in docker and this same share is connected with bonob.
Bonob is in Sonos App (but in the s2 app you could also add the sms share)
For PC Listening I use Navidrome (same share) and for mobile I use subsonic streamer with offline access to same share / navidrome.
Soooo cool! If it could get from gpx the dates when activities where made, autoimport multiple gpx files, bug fixing, tableview (small overview from all activities) it will be my Strava killer..
Great work! Thx