anchor.diff:  , gettext
   
   , ncurses
  -, pcre2
  +, pcre2_lib
   , python3
   }:
   
   let
  -  version = "2.7.1";
  +  version = "3.0.0";
   in
   stdenv.mkDerivation rec {
     name = "fish-${version}";
  
positive.code:   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;
      };
    };
  
  
negative.code:   src = fetchurl {
      url = "https://github.com/fish-shell/fish-shell/releases/download/${version}/${name}.tar.gz";
      hashOutput = false;
      sha256 = "ea9dd3614bb0346829ce7319437c6a93e3e1dfde3b7f6a469b543b0d2c68f2cf";
    };
  
    nativeBuildInputs = [
  