anchor.diff:    passthru = {
       srcVerification = fetchurl rec {
         failEarly = true;
  -      sha256Urls = map (n: "${n}/SHASUMS256.txt.asc") dirUrls;
  -      #pgpsigSha256Urls = map (n: "${n}.asc") sha256Urls;
  -      # https://github.com/nodejs/node#release-team
  -      pgpKeyFingerprints = [
  -        # Colin Ihrig
  -        "94AE 3667 5C46 4D64 BAFA  68DD 7434 390B DBE9 B9C5"
  -        # Evan Lucas
  -        "B9AE 9905 FFD7 803F 2571  4661 B63B 535A 4C20 6CA9"
  -        # Gibson Fahnestock
  -        "7798 4A98 6EBC 2AA7 86BC  0F66 B01F BB92 821C 587A"
  -        # Italo A. Casas
  -        "5673 0D54 0102 8683 275B  D23C 23EF EFE9 3C4C FFFE"
  -        # James M Snell
  -        "71DC FD28 4A79 C3B3 8668  286B C97E C7A0 7EDE 3FC1"
  -        # Jeremiah Senkpiel
  -        "FD3A 5288 F042 B685 0C66  B31F 09FE 4473 4EB7 990E"
  -        # Myles Borins
  -        "C4F0 DFFF 4E8C 1A82 3640  9D08 E73B C641 CC11 F4C8"
  -        # Rod Vagg
  -        "DD8F 2338 BAE7 501E 3DD5  AC78 C273 792F 7D83 545D"
  -      ];
  -      inherit (src) urls outputHash outputHashAlgo;
  +      fullOpts = {
  +        sha256Urls = map (n: "${n}/SHASUMS256.txt.asc") dirUrls;
  +        # https://github.com/nodejs/node#release-team
  +        pgpKeyFingerprints = [
  +          # Colin Ihrig
  +          "94AE 3667 5C46 4D64 BAFA  68DD 7434 390B DBE9 B9C5"
  +          # Evan Lucas
  +          "B9AE 9905 FFD7 803F 2571  4661 B63B 535A 4C20 6CA9"
  +          # Gibson Fahnestock
  +          "7798 4A98 6EBC 2AA7 86BC  0F66 B01F BB92 821C 587A"
  +          # Italo A. Casas
  +          "5673 0D54 0102 8683 275B  D23C 23EF EFE9 3C4C FFFE"
  +          # James M Snell
  +          "71DC FD28 4A79 C3B3 8668  286B C97E C7A0 7EDE 3FC1"
  +          # Jeremiah Senkpiel
  +          "FD3A 5288 F042 B685 0C66  B31F 09FE 4473 4EB7 990E"
  +          # Myles Borins
  +          "C4F0 DFFF 4E8C 1A82 3640  9D08 E73B C641 CC11 F4C8"
  +          # Rod Vagg
  +          "DD8F 2338 BAE7 501E 3DD5  AC78 C273 792F 7D83 545D"
  +          # Michael Zasso
  +          "8FCC A13F EF1D 0C2E 9100  8E09 770F 7A9A 5AE1 5600"
  +        ];
  +      };
  +      inherit (src)
  +        urls
  +        outputHash
  +        outputHashAlgo;
       };
     };
   
  
positive.code:     nghttp2_lib
    ] ++ (
      if versionAtLeast source.version "8.0.0" then [
        openssl_1-1-0
      ] else [
        openssl_1-0-2
      ]
  
negative.code:       sha256 = "40a6eb51ea37fafcf0cfb58786b15b99152bec672cccf861c14d1cca0ad4758a";
      };
      "10" = {
        version = "10.12.0";
        sha256 = "d9cd890d6c3b060f7a5497a522564328fe73ec39dda082f41c4141a73ac30ae4";
      };
    };
  
  