I just uploaded a new version of efaLive. I spend a lot of time to port the efaLive tools from Python 2 to Python 3. The support for Python 2 will end soon. The images are based on Debian Buster now and the efa version is 2.2.2_42. The image for the Raspberry Pi now support the new Raspberry Pi 4. For more information check the efaLive page.