anchor.diff:  
     syncthing = buildFromGitHub rec {
       version = 2;
  -    rev = "v0.14.16";
  +    rev = "v0.14.17";
       owner = "syncthing";
       repo = "syncthing";
  -    sha256 = "1im40gwznjl1kbn3ww27sb9jfkc49jskr8fmwpmgsvi5d178g30i";
  +    sha256 = "0knj5y5shgc211j3k75qyay59l5vy72zblwd0x0vy5plq1n1vnm0";
       buildFlags = [ "-tags noupgrade" ];
       buildInputs = [
         go-lz4 du luhn xdr snappy ratelimit osext
  
positive.code:     version = 2;
      owner = "spf13";
      repo = "hugo";
      rev = "v0.18";
      sha256 = "0smgfj1lzj11h4238fwyhx87l9rp4wxz4yhkqn5bwz26ha3zs0hl";
      buildInputs = [
        ace
        afero
  
negative.code: 
    govalidator = buildFromGitHub {
      version = 2;
      rev = "3b2665001c4c24e3b076d1ca8c428049ecbb925b";
      owner = "asaskevich";
      repo = "govalidator";
      sha256 = "0q1clznbxa4izis823fl7hxjcjggnzamc44xnhkj7b5li7n8dj90";
      date = "2016-12-27";
    };
  
    go-autorest = buildFromGitHub {
  