anchor.diff:  { lib, stdenv
   , fetchFromGitHub
  +, fetchpatch
   , nix-update-script
   , pantheon
   , pkg-config
  
positive.code:   meta = with lib; {
      description = "Sound Indicator for Wingpanel";
      homepage = "https://github.com/elementary/wingpanel-indicator-sound";
      license = licenses.gpl2Plus;
      platforms = platforms.linux;
      maintainers = pantheon.maintainers;
    };
  
negative.code: 
  stdenv.mkDerivation rec {
    pname = "wingpanel-indicator-sound";
    version = "6.0.0";
  
    src = fetchFromGitHub {
      owner = "elementary";
      repo = pname;
      rev = version;
      sha256 = "0cv97c0qrhqisyghy9a9qr4ffcx3g4bkswxm6rn4r2wfg4gvljri";
    };
  
    patches = [
      # Upstream code not respecting our localedir
      # https://github.com/elementary/wingpanel-indicator-sound/pull/216
      (fetchpatch {
        url = "https://github.com/elementary/wingpanel-indicator-sound/commit/df816104c15e4322c1077313b1f43114cdaf710e.patch";
        sha256 = "029z7l467jz1ymxwrzrf874062r6xmskl7mldpq39jh110fijy5l";
      })
    ];
  
    passthru = {
      updateScript = nix-update-script {
  