This is a pop up demo for services on the mesh. There's scripts for 3 various flavors of Linux: Raspian, Debian, and CentOS. The Debian and CentOS scripts just make sure a LAMP stack is present along with the git clients (To clone down the apps). The Raspian script does a lot of clean up with unrequired packages, and this all fits on a 4GB card.
You should get a set of 3 apps, and you can keep re-running the scripts safely. It doesn't harm anything to do so, and in fact will update the apps if there's new versions.
It takes no arguments, it just runs.