The Elro Connects integration for Home Assistant now has support for Elro Connects power sockets.
An update has been made available. Note that only the K1 connector is supported. If you have a K2 connector, then this will not work. If you have have some other Elro Connects devices and a K1 connector, and you want to help, then you can leave a reaction in the comments. If you would like to do some more technical testing, then note there is a test test script you can in install and use examples of the lib-elro-connects library. The socket-demo.py script can show the status of all your Elro Connects devices connected to the K1 connector. Further it allow you to send command to it (2 digit hex code). That allows you to play a bit with it.