I've been using MusicBee for more than a decade. That means years of playcounts, ratings, loved tracks and so on. When I set up myself a Navidrome server, I didn't want to lose all those years of data ...
MusicBee exports static versions of my auto playlists. This script reads those playlists, copies them to a new location, and creates hard links for the music files there. Syncthing then keeps the new ...