adding Zeroconf / Avahi Publish to main.py

[fototeddy]

Hi,

do you thought about adding Zeroconf / the avahi publish into the main.py maybe trigger by and option "--avahi true" that would be nice for households with more than one Spotify Account

Cheers and also thanks for the great Work

[Fornoth]

I do plan on adding this, but it won't be for a while (a few months)