ARM servers are about to enter the mainstream after many years of development. This is especially true in Japan, home to SoftBank, and also to the Post K ARM powered supercomputer. Jon Masters has been involved in ARM servers since the beginning. In this talk, he will discuss the history of ARM servers, explaining what defines an ARM server and how they differ from the alternatives, and how to practically build and deploy an ARM server installation. Many common issues are discussed and advice is given for those on the cutting edge who plan to deploy in 2017.