Set GIFs as wallpapers on MAC OS
If you're brave enough, you can add GIFPaperAgent to your login items.
GIFPaper is developed by Tomasz Wójcik.
First and foremost GIFPaper is alpha quality software. It comes with no warranty and I (the author) take no responsibility for any problems/damage/anything else that may happen while using it. I've done my best to keep the app safe and I don't think there's even a smallest chance of it damaging your computer in any way but still, be advised of the above statement.
As for the license - all rights reserved for now. I'll probably open it on GitHub when I get a chance to clean up the code.