First I had to draw up two animations that were the same length. Then I had to cut out each frame individually and apply the halftone, merge everything for all slides. Had to come up with a way to loop them well enough ran into problems merging them into a GIF, doing all of this at 2:00am.
That's all tedious; and I'm not complaining. If it wasn't so, I'd like to see other people make some. These seem really cool.