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 = fetchurl {
        url = "https://github.com/electron/electron/releases/download/v${version}/electron-v${version}-darwin-x64.zip";
        sha256 = "134fy9czvl0mydnngd9ap09pcxd7491bnx3p9sbib50a5dscgn6f";
      };
  
      buildInputs = [ unzip ];
  
negative.code:     src = {
        i686-linux = fetchurl {
          url = "https://github.com/electron/electron/releases/download/v${version}/electron-v${version}-linux-ia32.zip";
          sha256 = "1ffv4wlj827wyq7y2hfaz2d0fapqr2r9likb90ayzh91vmkc8c2y";
        };
        x86_64-linux = fetchurl {
          url = "https://github.com/electron/electron/releases/download/v${version}/electron-v${version}-linux-x64.zip";
          sha256 = "01b063jabx7fglh63dk7nh21xxadwxrrvavcwznpw6jhid48g2yz";
        };
        armv7l-linux = fetchurl {
          url = "https://github.com/electron/electron/releases/download/v${version}/electron-v${version}-linux-armv7l.zip";
          sha256 = "18dsb3pyj9gfn8xyzhblx7nidgp39pfqs1ml07nxfkf1bjdh4c4w";
        };
        aarch64-linux = fetchurl {
          url = "https://github.com/electron/electron/releases/download/v${version}/electron-v${version}-linux-arm64.zip";
          sha256 = "0dx6bzj0laygqkyl8ngbh0yfzyc5mxr3fxlqb867cza9sz5hh95l";
        };
      }.${stdenv.hostPlatform.system} or throwSystem;
  
  