Followed the official instructions, then tried to update but then it throws up an error.:
Err:7 http://phoscon.de/aptdeconz $(lsb_release Release
404 Not Found [IP: 81.169.237.235 80]
Reading package lists…Done
E: The repository http://phoscon.de/aptdeconz $(lsb_release Release’ does not have a release file
N: Updating from such a repository can’t be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
Does anyone have any ideas how to get this working please?