Sharing Playlists on multiple computers?

So, this may be an impossible issue. There are a couple of factors. I have TRIED to set up my apple music library on a NAS server, but it seems whenever the computers reawaken they revert to the iTunes folder on the local drive. I was trying to get seamless sharing between devices using a shared iTunes library and I've given up on that for now as they can't seem to stay connected.

However, Since the music is accessible and downloadable on all devices, I would love to be able to share playlists. But when I try that, the playlists are empty and not really shared because the file locations of the songs are different (I assume that is the issue).

I am wondering if anyone has come up with a good solution. My Synology NAS seems to have an iTunes server, but I've not been able to get it to work.

TIA,

Jeff