I've gone on and on about immutable operating systems over the past year or so. There's a good reason for that. Also: 5 Linux distros that take a little work out of the box, but are so worth the effort Immutable operating systems are a dramatic shift away from the traditional OS, where users can access and change everything on the OS... even system files. All you need is sudo access or the administrator password, and there's nothing you cannot do with the operating system. In...