Just an FYI to everyone that Ampache 5 is around the corner with:
* A new API revision (and multiple incoming clients)
* Subsonic support has been improved immensely (we are the official demo server for Ultrasonic)
* Load times have been significantly cut for the web interface due to database and code updates
* docker images are updated regularly now and provide a lot of options including compose files.
(Just some things I've noted from the comments.)