I don't use OMV, but I have a nas server I built and here is my .02
set up an smb share in OMV for windows. Mounting that in windows should be trivial (don't hold me. Haven't used windows in years now, but last I used win10 smb was super easy to mount)
look into docker on OMV for deploying stuff. I run docker on my NAS and host a bunch of stuff including:
jellyfin for all the rips of my DVDs
navidrome for all the rips of my CDs
nextcloud to replace google stuff
radicale for my calendars
Joplin server for my notes
mealie for recipes
more stuff I can't think of right now
with docker, if you want a GUI for creating, managing and interacting with your stuff, look at Dockge and Portainer
Eye of the World is the actual first book. I'd suggest starting there. Also, just a heads up, it gets to be a bit of a slog around book seven, but the finish is really worth it.
Have you had problems on android with tempo not continuing playback?
I also run navidrome, and have tried tempo, substreamer, and another client I can't think of, and any of the clients that stream keep stopping playback after one song when the screen is locked.
I've given the client all the permissions for running in the background and using battery that I can and no matter what I do, it'll just stop after one song.
I'm on a pixel 7a with gOS.
For now I've settled on Poweramp with tla selection of the music on my phone since I can't fit it all in storage. Its been really frustrating.
BBSes are back!