anchor.diff:    passthru = {
       srcVerification = fetchurl rec {
         failEarly = true;
  -      pgpsigUrl = map (n: "${n}.asc") urls;
  -      pgpKeyFingerprint = "0038 3798 6104 8788 35FA  516D 7A67 D962 D88A 709A ";
  -      inherit (src) urls outputHash outputHashAlgo;
  +      inherit (src)
  +        urls
  +        outputHash
  +        outputHashAlgo;
  +      fullOpts = {
  +        pgpsigUrl = map (n: "${n}.asc") urls;
  +        pgpKeyFingerprint = "0038 3798 6104 8788 35FA  516D 7A67 D962 D88A 709A ";
  +      };
       };
     };
   
  
positive.code:   src = fetchurl {
      url = "https://github.com/fish-shell/fish-shell/releases/download/${version}/${name}.tar.gz";
      hashOutput = false;
      sha256 = "e42bb19c7586356905a58578190be792df960fa81de35effb1ca5a5a981f0c5a";
    };
  
    nativeBuildInputs = [
  
negative.code: , gettext
  
  , ncurses
  , pcre2_lib
  , python3
  }:
  
  let
    version = "3.0.0";
  in
  stdenv.mkDerivation rec {
    name = "fish-${version}";
  