Cloud Photoframe

This is a basic website showing photos either:

from the ./photos directory.
from a google photos album url (e.g. https://photos.app.goo.gl/foo)

If using a directory, you can look at rclone to mount a cloud provider as a filesytem, such as Dropbox.

You can set certain options by passing the following query parameters:

albumUrl: Only used and mandatory when not using local files.
interval: Interval to change to the next picture in milliseconds.
shuffle: If present, shuffle the pictures instead of showing chronologically.

Sources