This is John Horton Conway's Game of Life in javascript.
It's an algorithm that produces really organic-looking movement. To me, it looks like cells dividing or something. But cooler because it's more pixelated & geometric.
The movement of the Game looks random, but is actually deterministic: the start state of the Game will always produce the same result. So I added a Save/Load buttons.
I made the Game using the wonderful Two.js and Webpack.
It's a static site in an S3 bucket and is deployed via a GitHub Action every time I push a new tag.