services.xserver.enable = true;
  services.xserver.libinput.enable = true;
  services.xserver.displayManager.sddm.enable = true;
  services.xserver.windowManager.i3.enable = true;
  hardware.opengl.enable = true;
  hardware.opengl.driSupport = false;
  nixpkgs.config.allowUnfree = true;
  #services.xserver.videoDrivers = ["nvidia"];
  #services.xserver.videoDrivers = ["intel"];
  #services.xserver.videoDrivers = ["intel" "nvidia"];
  services.xserver.videoDrivers = ["vesa"];
  #boot.extraModprobeConfig = "install nouveau /run/current-system/sw/bin/false";
  hardware.nvidiaOptimus.disable = true;
  boot.blacklistedKernelModules = ["nouveau"];