Hey pierre!
can u tell me in which directory? My openhab is running on RPI4 but it is the openhabian version. What automatically downloads everything. So the directory i have to copy the jar file in is : /usr/share/openhab/addons, but in your case i found this. Maybe this link could help ? openHAB3 docker; unable to install addons - #15 by Schnuecks
I Use the UI to find al my domintell stuff and then i use the Item file to configure my items.
Domintell.txt (5.4 KB)