Got that too. Awesome.

Here, multiple Androids sync their images to my laptop. There I sort them, move them to a different folder structure, which gets synced to the local server, the phones again as well as a tablet.

Backup will be done from the server, sorting on the laptop is much easier than on the phones, and tablet comes with us when we visit relatives.

All started by just coming home to the trusty WiFi. No interaction needed.