I created this shortcut after seeing a Reddit post a few months ago.
It collects information like the current weather, location, and time of day, then asks Apple Intelligence to generate a prompt for an image generator. The shortcut sends that prompt to Apple Playground and sets the resulting image as the iPhone wallpaper*. Everything runs locally on the iPhone, with no data sent to the internet. I also set up some time-based automations to run the shortcut periodically.
(Original Reddit post: https://redlib.catsarch.com/r/shortcuts/comments/1oeuqna/dynamic_abstract_wallpaper_shortcut_apple/)
- you might need to manually configure the last step where it says Wallpaper 3 to something that is valid on your iPhone
