anchor.diff:      longDescription = ''
         cm-rgb controls AMD Wraith Prism RGB LEDS.
   
  -      To permit non-root accounts to change use this utility on
  +      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>.
       '';
  
positive.code:   ];
  
    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
  
negative.code: 
  buildPythonApplication rec {
    pname = "cm-rgb";
    version = "0.3.6";
  
    src = fetchFromGitHub {
      owner = "gfduszynski";
      repo = pname;
      rev = "v${version}";
      sha256 = "sha256-m0ZAjSLRzcjzygLEbvCiDd7krc1gRqTg1ZV4H/o2c68=";
    };
  
    nativeBuildInputs = [
  