The container runs pulseaudio, which is configured to receive the rtp broadcast streamed by
malted/mopidy-pulseaudio-server and play it on the default sound device.
There is also a small webserver running on port 8000, which can be used to mute/unmute the device.
This container will run on any Raspberry PI, including the PI Zero.
docker run --restart=always -d --net=host --privileged malted/rpi-pulseaudio-rtp-client.
YOUR_IP:8000/enable/off in your browser to mute and
YOUR_IP:8000/enable/on to unmute.