anchor.diff:      virtualisation.kvmgt = {
         enable = mkEnableOption ''
           KVMGT (iGVT-g) VGPU support. Allows Qemu/KVM guests to share host's Intel integrated graphics card.
  -        Currently only one graphical device can be shared
  +        Currently only one graphical device can be shared. To allow users to access the device without root add them
  +        to the kvm group: <literal>users.extraUsers.&lt;yourusername&gt;.extraGroups = [ "kvm" ];</literal>
         '';
         # multi GPU support is under the question
         device = mkOption {
  
positive.code:       }
      ) cfg.vgpus;
  
      systemd.services = mapAttrs' (name: value:
        nameValuePair "kvmgt-${name}" {
          description = "KVMGT VGPU ${name}";
  
negative.code:           and find info about device via <command>cat /sys/bus/pci/devices/*/mdev_supported_types/i915-GVTg_V5_4/description</command>
          '';
          example = {
            i915-GVTg_V5_8.uuid = "a297db4a-f4c2-11e6-90f6-d3b88d6c9525";
          };
        };
      };
  