A very old project from 2010: automatic file categorizer for macos. It was a project to try Cocoa Objective-C on.
This app watches any configured folders, and if a file appears there, it looks at user's settings and decides, whether to move / copy this file to another location, or ignore it.
I don't have any screenshots, but I found a very old YT video showcasing the thing. It's in 360p max now, but when I uploaded it back then, it was 1080 :)
Uploading these sources just not to lose them completely.