help with finding / creating animation

[j4ck3]

i want do download / create an animation like this video: https://www.shutterstock.com/shutterstock/videos/3446957693/preview/stock-footage-ascii-technological-background-fractal-motion.webm.

is it someone that knows a search term that will make me found a dur animation like the video. or a video i can download from youtube and then convert it. best video i found was this one: https://www.youtube.com/watch?v=M6ika_xCTQs.
i want to create a dur animation and use it in the display manager: https://github.com/fairyglade/ly.