1 - it use the model id + the manufacture name.
2- on a normal OS this is sure
All DDF provided directly with deCONZ typically reside in
/usr/share/deCONZ/devices/on a Linux system and are loaded first. However, files residing in the home directory of the user running deCONZ (e.g./home/<DECONZUSER>/.local/share/dresden-elektronik/deCONZ/devices) will override the pre-packaged files to allow users to amend and keep their own files if desired.
So one folder is reseted at every new deconz version, the second one is persistent. Just need to use a folder outside the docker for this one.
Here you have a working mode for a normal docker Update frequency Blitzwolf BW-SHP13 (TZ3000_g5xawfcq) - #5 by jjansen85
Change the container mount point for your existing deCONZ volume from
/root/.local/share/dresden-elektronik/deCONZto/opt/deCONZ
If you have the method for HA, I m interested too …