Files automated tagging 1.1.1

I just have enabled this app.
What is the reason for this app? I don’t find any instructions/help aside of “An app for Nextcloud that automatically assigns tags to newly uploaded files based on some conditions”.
What conditions? What tags"
I’m looking for some automatic tagging - but cannot figure out how this app works.
Any help?

My workflow example: Screenshots or photos get automated tags image and upload android based on the MIME types of the files on upload to the server.

MIME type, file size, remote IP address, …

Tags that you define before they can be assigned by rules to individual files.

I see.
Thanks for clarification!