anchor.diff:    pname = "meteor";
     src = fetchurl {
       url = "https://static-meteor.netdna-ssl.com/packages-bootstrap/${version}/meteor-bootstrap-os.linux.x86_64.tar.gz";
  -    sha256 = "1pydmwx1yjbw54qfq7ndw2l3i3v302bvasvf71x4y9572r2p99mp";
  +    sha256 = "1njp2db939w3ah5k943bkgm62k969fj47qwmlzvhmmg87xwnq3fb";
     };
   
     #dontStrip = true;
  
positive.code: 
    meta = with lib; {
      description = "Complete open source platform for building web and mobile apps in pure JavaScript";
      homepage = http://www.meteor.com;
      license = licenses.mit;
      platforms = [ "x86_64-linux" ];
      maintainers = with maintainers; [ cstrahan ];
  
negative.code: { stdenv, lib, fetchurl, zlib, patchelf, runtimeShell }:
  
  let
    version = "1.9.3";
  in
  
  stdenv.mkDerivation {
  