Hello, I currently own a Mini, which I use with Plex for enjoying shows and movies. With the new Apple TV and the brand new Plex app, and because I want to learn about server as well, I would like to turn the mini into a headless server, running mostly caching service, time machine and Plex server. I have been through the Ars Technica pages about OS X server, and learnt a lot, but there are still some little things I can't get my head around: when setting up a server, do you need to create a new user account? running headless, does this user need to be logged in onto the server? if no user needs to be logged in to run all server services, is it possible to start third party services (Plex Server for instance) without any user logged in? In short, it is not clear to me how the concept of user accounts is used on a server, apart from accounts to log on client machines. Thanks for sharing your knowledge and sorry if the questions seem not clear or make no sense. edited: everything is running OS X El Capitan and latest version of the OS X server app.