anchor.diff:  { stdenv, libXScrnSaver, makeWrapper, fetchurl, unzip, atomEnv, libuuid, at-spi2-atk }:
   
   let
  -  version = "4.0.5";
  +  version = "4.0.6";
     name = "electron-${version}";
   
     throwSystem = throw "Unsupported system: ${stdenv.hostPlatform.system}";
  
positive.code:     src = {
        i686-linux = fetchurl {
          url = "https://github.com/electron/electron/releases/download/v${version}/electron-v${version}-linux-ia32.zip";
          sha256 = "0da2fw5fxmsyznkczkvr2cn4mr4s4mc994xig9qy7wvflpwn78hr";
        };
        x86_64-linux = fetchurl {
          url = "https://github.com/electron/electron/releases/download/v${version}/electron-v${version}-linux-x64.zip";
          sha256 = "19a0gxbd5m3c8w9nigkh666wwpqb5q2x14g53rjvjylhnrfbll8d";
        };
        armv7l-linux = fetchurl {
          url = "https://github.com/electron/electron/releases/download/v${version}/electron-v${version}-linux-armv7l.zip";
          sha256 = "0r7hp4j3j341cx33k0v9dipygxviy0avm5l76gi4nx4y4vdwxf3l";
        };
        aarch64-linux = fetchurl {
          url = "https://github.com/electron/electron/releases/download/v${version}/electron-v${version}-linux-arm64.zip";
          sha256 = "0vya2rvvir7r4z50h0y015066d7825qrj4rp3vs8rf28ls0rfyja";
        };
      }.${stdenv.hostPlatform.system} or throwSystem;
  
  
negative.code: 
      src = fetchurl {
        url = "https://github.com/electron/electron/releases/download/v${version}/electron-v${version}-darwin-x64.zip";
        sha256 = "0r1yn5lz808xdwp29g4kmlm5v0i1fsdxd4ph537gyz3sfn30dgq9";
      };
  
      buildInputs = [ unzip ];
  