Is your feature request related to a problem? Please describe.
I am in a coworking space, and when I use spotifyd, potentially anyone in the office could see my daemon and potentially connect to it. This is made worse by other connections crashing spotifyd (#1036)

The solution I'd like
Since spotifyd has my credentials, I assume it does not need the Wifi / network discovery at all, since over the internet it should work (Verified: My phone on mobile data and control my spotifyd on wifi)

Alternatives I;ve considered
Using iptables or something to block the zeroconf ports - I've not tested this, but I guess it could be a workaround. But would be nice to just not need it