Well for me, my wife had a ton of pictures laying around, and some scattered on google drive etc…

I basically did a huge scanning project in secret, set up an immich server and surprised her with it. That absolutely is one of her favorite gifts of all time.

Now as far as doing that with someone that didn’t stay in the same house, on an OS I wasn’t already managing… no probably wouldn’t imagine doing that unless the person was already showing signs of interest in managing something like that… in which case it should be done as a “lets build this together” project.