I totally feel this guy's pain. When I started at Sun there was a 'direct to framebuffer' window system which we called "Suntools" It was fast and pretty much a

I totally feel this guy's pain. When I started at Sun there was a 'direct to framebuffer' window system which we called "Suntools" It was fast and pretty much all in the kernel and pretty awesome, except this new thing "X11" allowed you to have a big beefy machine (sort of a Raspi 3 equivalent today :-)) with its fans and noise in some machine room while the display and input was on your desk. There were even people who made things they called "X terminals" which were instant on devices that provided the display, mouse, Etc. Sun switched over to X11 and the UNIX windows wars began. When the SparcStation I came out, I backported Suntools to its frame buffer on a lark and it was screaming fast. That was pretty fun. Oddly enough, I still use X11 a lot. I have probably half a dozen ARM systems around my office/lab doing various things, and it is simpler to run an X11 client locally and just kick off an xterm to these machines than it is to try to do some sort of KVM nonsense. It is also more capable than running a web server on the Pi and trying to interact with it via web "application" pages. Oddly enough, I recently (like about 6 months ago) became aware of "KVM over IP" which, believe it or not, you hook this piece of hardware to the display port (or HDMI) and the USB port, and it sends the video (and HDMI audio), out over the network to a purpose built application on a remote system. Wow, sounds just like X11 but without the willing participation of the OS vendor :-). The point I'm trying to make is there absolutely is a need for both. A direct to the metal way of cutting out layers and layers of abstraction so that you can just render to the screen in a timely way, with support for UI features. (otherwise we'd just program to Unity or Vulkan and be done). But their also needs to be a standardized way of letting "well behaved" programs export their graphics and I/O across the network to a place more convenient for the user. Arguing passionately for one use case at the expense of the other doesn't move the ball down the road. Instead it just pits one chunk of the user base against the other half.