anchor.diff:    postPatch = ''
       substituteInPlace src/utils.rs \
         --replace "/bin/echo" "echo"
  +  '';
  +
  +  postInstall = ''
  +    for shell in bash fish zsh; do
  +      $out/bin/starship completions $shell > starship.$shell
  +      installShellCompletion starship.$shell
  +    done
     '';
   
     cargoSha256 = "1nvs68qxygi2l43vxw890r40px35dvzbcg6qmrm09g60ykd8pjv2";
  
positive.code:     sha256 = "17wc9f07308a97dsmrkq74w2r639sqms0hwh8gavwxycj7wq7xz2";
    };
  
    nativeBuildInputs = stdenv.lib.optionals stdenv.isLinux [ pkg-config ];
  
    buildInputs = stdenv.lib.optionals stdenv.isLinux [ openssl ]
      ++ stdenv.lib.optionals stdenv.isDarwin [ libiconv Security ];
  
negative.code: { stdenv, fetchFromGitHub, rustPlatform, pkg-config, openssl, installShellFiles
  , libiconv, Security }:
  
  rustPlatform.buildRustPackage rec {
  