Install docker and docker-compose:

$ apt install docker-compose

You will also need to open access to your X server for Docker, which might have (not necessarily big) security implications (more on this here):

$ xhost +local:root

This command can be undone when you are finished with using the X server in Docker:

$ xhost -local:root

Run the demo with docker-compose, from this directory ("docker/demo" directory in the avoidance repository):

$ docker-compose up

The first time, docker-compose will have to build the docker image, which will take some time.

Once you are done, you can stop the demo with "Ctrl + C" and possibly remove the X permissions you gave before:

$ xhost -local:root