THe systemd Unit for navidrome in nixpkgs is too overzealous in permission
denials.
It blocks homedir access by default (which I believe is dumb), so if MusicFolder
and DataFolder are anywhere inside homedir, they are not available to service at
runtime.
MusicFolder can be read-only, but DataFolder must be write-able.
This change also force sets user and group. I'm not sure that is necessary, but
since DynamicUser is true, I might just get it over with.
Not that it is working.. I suspect it is another victim of overzealous systemd
unit configuration in Nixpkgs. Anyway I opened a bug report for it on navidrome
repo, probably have some response in next few weeks.
Because WSL is ridden with bugs, I'm going to try running my Music over a
server.
This also provides opportunity to finally unify and start making proper
playlists that will stick.
