He used an Arduino Mega and Adafruit Neopixel library combo to add and control the animations. To see steps in detail, check out the Instructable below. It seems worth a shot if you've got the skills.

Arduino's Create Agent is what you need to get started to coding, so whether you're on PC, Mac, or even on Chromebook, here's how to download the program.

Installing the library is as easy as checking out the code from GitHub into your Arduino install, so that’s exactly what I did. I then spent a couple days playing around with it.