Plex can also auto upload photos to a server you own.
I would be happy to pay money to make this work properly.
In the meantime, I pay extra for Google Photos (for display/search/tagging) and iCloud (for reliable auto backup) and need to find a way to automatically download the iCloud things to my Plex/NAS machine.
I just want to take my data from here... and put it there... and not have it trashed along the way. I will pay money for this service.