

No special process, I installed Memories as admin on my Nextcloud, pointed it to my Picture-folder and my Smartphone-Uploadfolder, and made sure I had the other Apps as recommended here installed (e.g. ‘Photos’ to use albums and ‘Recognize’ for automatic face tagging)
The Memories-App on the Smartphone is also neat. And it is available on F-Droid.
I am not old. You are old! :-(