anchor.diff:      ];
   
       unpackPhase = ''
  +      runHook preUnpack
  +
         xar -xf $src
         cd com.wearezeta.zclient.mac.pkg
  +
  +      runHook postUnpack
       '';
   
       buildPhase = ''
  +      runHook preBuild
  +
         cat Payload | gunzip -dc | cpio -i
  +
  +      runHook postBuild
       '';
   
       installPhase = ''
  +      runHook preInstall
  +
         mkdir -p $out/Applications
         cp -r Wire.app $out/Applications
  +
  +      runHook postInstall
       '';
     };
   
  
positive.code: 
      buildInputs = atomEnv.packages;
  
      unpackPhase = "dpkg-deb -x $src .";
  
      installPhase = ''
        mkdir -p "$out/bin"
        cp -R "opt" "$out"
        cp -R "usr/share" "$out/share"
  
negative.code:       # Desktop file
        mkdir -p "$out/share/applications"
        cp "${desktopItem}/share/applications/"* "$out/share/applications"
  
        runHook postInstall
      '';
  
      runtimeDependencies = [
  