Every time there is an update to deconz, I have to manually re-edit the systemd startup file (to put it back on the appropriate http port), then reload the systemd daemon, then restart deconz and restart the service that would normally be running on port 80. If it needs to deposit a new files, calling it deconz.service.new would work.
It would be ideal if local edits to deconz.service were retained (standard for most things).
I posted this in the phoscon app forum but think that is the wrong spot as most other posts are looking for device integration.