There's also a write up of the project if you scroll down. It was written with three.js and uses raymarching to create the visuals. If you hold shift it pauses

There's also a write up of the project if you scroll down. It was written with three.js and uses raymarching to create the visuals. If you hold shift it pauses the simulation and allows you to toggle cells on/off for live experimentation—just let go of shift to resume.