MQTT / Home Assistant
Matt Wydra has created an excellent project available here: https://github.com/Tediore/audioflow2mqtt
This can run in Docker and acts as a gateway between Audioflow and MQTT for use in your own automation environment such as Home Assistant, OpenHAB or Domoticz.
It is also available via the add-on store in Home Assistant. Click on the three dots in the top right, and then Repositories, add https://github.com/Tediore/audioflow2mqtt-addon and refresh.