Hi,
Just saw your video on this whilst watching your excellent docker videos as a learning tool for a docker newbie
Just posting here my tip for backing up hosted unifi controllers… install syncthing on the unifi controller and add the autobackup folder to syncthing as a shared folder with one way sync to another syncthing instance running elsewhere
Also in the remote syncthing host, I configure the synced copy of the autobackup folder to have say 10 previous backup version of any past changes for added security if controller ever gets hacked
Cheers
Harry