Animated Wallpapers
This is sorta what it looks like. This is a static image but you can get the concept from what I am showing you. I have basically also made and shared a few on the community workshop of Steam.
Preview
How you use the videos? - By simply using Wallpaper engine from steam you can use the community posts that you can then load on to your computer. All of these wallpapers or videos are free, the only cost is to use the program which you pay once from buying on it on Steam. Steam has this cool community feature thats called the "steam workshop". This steam workshop allows you to like install community made mods, or additions to a game or program. So the Wallpaper Engine program leverages the Steam workshop to let users make items and allow them to be used by there community through the steam workshop.