anchor.diff:  
   rustPlatform.buildRustPackage rec {
     pname   = "bat";
  -  version = "0.12.1";
  +  version = "0.13.0";
   
     src = fetchFromGitHub {
       owner  = "sharkdp";
       repo   = pname;
       rev    = "v${version}";
  -    sha256 = "1cpa8dal4c27pnbmmrar4vqzcl4h0zf8x1zx1dlf0riavdg9n56y";
  +    sha256 = "1kaa6ps6v1wk9qs63h116k4pbz7y9mfbfxfbq7g89yjhzkjmh6xc";
       fetchSubmodules = true;
     };
   
  -  cargoSha256 = "17xyb84axkn341nd5rm7jza1lrn8wcnl6jirhyv63r5k6mswy39i";
  +  cargoSha256 = "01l1y124gjh6gf9z1jkbpfzh0w92hrgwvsmqkqdw3a9pa4w5f6yg";
   
     nativeBuildInputs = [ pkgconfig llvmPackages.libclang installShellFiles makeWrapper ];
   
  
positive.code: 
    meta = with stdenv.lib; {
      description = "A cat(1) clone with syntax highlighting and Git integration";
      homepage    = https://github.com/sharkdp/bat;
      license     = with licenses; [ asl20 /* or */ mit ];
      maintainers = with maintainers; [ dywedir lilyball ];
      platforms   = platforms.all;
  
negative.code:   LIBCLANG_PATH = "${llvmPackages.libclang}/lib";
  
    postInstall = ''
      installManPage $releaseDir/build/bat-*/out/assets/manual/bat.1
      installShellCompletion $releaseDir/build/bat-*/out/assets/completions/bat.fish
    '';
  
    # Insert Nix-built `less` into PATH because the system-provided one may be too old to behave as
  