anchor.diff:    ];
   
     postInstall = ''
  -    # Remove this line when/if this PR gets merged:
  -    # https://github.com/gfduszynski/cm-rgb/pull/43
  -    install -m0755 scripts/cm-rgb-gui $out/bin/cm-rgb-gui
  -
       mkdir -p $out/etc/udev/rules.d
       echo 'SUBSYSTEM=="usb", ATTR{idVendor}=="2516", ATTR{idProduct}=="0051", TAG+="uaccess"' \
         > $out/etc/udev/rules.d/60-cm-rgb.rules
  
positive.code: 
  buildPythonApplication rec {
    pname = "cm-rgb";
    version = "0.3.4";
  
    src = fetchFromGitHub {
      owner = "gfduszynski";
      repo = pname;
      rev = "v${version}";
      sha256 = "04brldaa2zpvzkcg43i5hpbj03d1nqrgiplm5nh4shn12cif19ag";
    };
  
    nativeBuildInputs = [
  
negative.code:     longDescription = ''
        cm-rgb controls AMD Wraith Prism RGB LEDS.
  
        To permit non-root accounts to use this utility on
        NixOS, add this package to <literal>services.udev.packages</literal>
        in <filename>configuration.nix</filename>.
      '';
  