anchor.diff:  
     fish = stdenv.mkDerivation rec {
       pname = "fish";
  -    version = "3.2.0";
  +    version = "3.2.1";
   
       src = fetchurl {
         # There are differences between the release tarball and the tarball GitHub
  
positive.code: 
      checkInputs = [
        coreutils
        (python3.withPackages(ps: [ps.pexpect]))
        procps
      ];
  
  
negative.code:       # --version`), as well as the local documentation for all builtins (and
        # maybe other things).
        url = "https://github.com/fish-shell/fish-shell/releases/download/${version}/${pname}-${version}.tar.xz";
        sha256 = "2OSfQJDTd43xfdgl5KKoAZIBVoJCPNndArZnXWXDr1s=";
      };
  
      # Fix FHS paths in tests
  