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Just so it’s clear: The X Window System (X11) is a protocol with multiple implementations. Sure, the X.Org Server (Xorg) was the most popular by a huge margin, but there were quite a few others (e.g. XFree86, Xming, XWayland), though over time most were discontinued for one reason or another. X11 and Wayland do differ in an important way: in X11 window managers (GNOME, KDE, i3, whatever) all sat atop the Xorg server; whereas in Wayland there’s only the compositor, so GNOME, KDE, Sway, whatever, all essentially include their own equivalent of Xorg (which could be fully integrated, or factored into a library, such as Mutter, KWin, wlroots). |
Please cite a single independent implementation of an X11 protocol server.