anchor.diff:        failEarly = true;
         sha256Urls = map (n: "${n}/SHASUMS256.txt.asc") dirUrls;
         #pgpsigSha256Urls = map (n: "${n}.asc") sha256Urls;
  -      pgpKeyFingerprint = "DD8F 2338 BAE7 501E 3DD5  AC78 C273 792F 7D83 545D";
  +      pgpKeyFingerprints = [
  +        "DD8F 2338 BAE7 501E 3DD5  AC78 C273 792F 7D83 545D"
  +        "B9AE 9905 FFD7 803F 2571  4661 B63B 535A 4C20 6CA9"
  +      ];
         inherit (src) urls outputHash outputHashAlgo;
       };
     };
  
positive.code:   src = fetchurl {
      urls = map (n: "${n}/node-v${version}.tar.xz") dirUrls;
      allowHashOutput = false;
      sha256 = "dbaeb8fb68a599e5164b17c74f66d24f424ee4ab3a25d8de8a3c6808e5b42bfb";
    };
  
    nativeBuildInputs = [
  
negative.code: }:
  
  let
    version = "6.2.2";
  
    dirUrls = [
      "https://nodejs.org/dist/v${version}"
  