@yukiame I'd just like to interject for a moment. What you're referring to as KDE, is in fact, Plasma/KDE, or as I've recently taken to calling it, Plasma plus KDE. KDE is not an operating system unto itself, but rather another free component of a fully functioning Plasma system made useful by the Plasma corelibs, shell utilities and vital system components comprising a full OS as defined by POSIX. Many computer users run a modified version of the Plasma system every day, without realizing it.