The original! (I believe)
There have been some cool / highly optimized implementations of this, now colloquially referred to as "particle life"
https://hunar4321.github.io/particle-life/
This is a popular project and fun to implement- just search for "particle life".
I also took a crack at this when playing with compute shaders in Godot, if you are interested in a very simple implementation.
Under the folder "Life" https://github.com/jasonjmcghee/compute-shaders
The project you linked to has this in the readme:
So it looks like this submission is the original.He's saying this post is the original, and then pointing to some more projects inspired by it
Indeed - I see the ambiguity in the language I chose.
Yes I was trying to communicate, from my understanding, the main post here is the original work, but it has inspired a bunch of projects since then.