Is the software open sourced? This looks like it would translate into a fun hack-a-day project. At first sight, the required hardware seems pretty basic, or? It

Is the software open sourced? This looks like it would translate into a fun hack-a-day project. At first sight, the required hardware seems pretty basic, or? It would be awesome if someone replicated it with a RaspPi or something and posted a step-by-step tutorial.