On http://www.dns-sd.org/ServiceTypes.html all Avahi ServiceType names are listed. Right now, snapcast shows up as '_snapcast._tcp' however it can also show up using a prettier name. To do so, one must register the service name on http://www.dns-sd.org/ServiceTypes.html. Since this is @badaix your project, best is you to register it :)
On http://www.dns-sd.org/ServiceTypes.html all Avahi ServiceType names are listed. Right now, snapcast shows up as '_snapcast._tcp' however it can also show up using a prettier name. To do so, one must register the service name on http://www.dns-sd.org/ServiceTypes.html. Since this is @badaix your project, best is you to register it :)