Google Home, Google Chromecast Music, Speakercraft MZC-66 and Smartthings Integration

This is my project and it works for me. I haven’t been able to get the Goggle Helper to work for me yet, so I recommend using some or part of my project: (I have replicated it on two project computers: C.H.I.P and the Pi Zero W)

https://community.smartthings.com/t/chip-pi-zero-w-vlc-thing-big-talker-sonos-killer/35899?u=lmosenko