North Korea is generally thought to be the most isolated country on the planet. There is very little uncontrolled communication into and out of North Korea, and most countries have few or no ties to them. But North Korea, like all countries, needs computers, and those computers need an operating system. Enter “Red Star OS,” a Linux-based operating system used by North Korea, and written by their developers. In this talk, Florian Grunow and Niklaus Schiess look through a copy of Red Star OS, examining its features, including what makes it special (and different) from other Linux distributions.