anchor.diff:  , fetchFromGitHub
   , ruby
   , makeWrapper
  +, getent               # /etc/passwd
  +, ncurses              # tput
   , procps               # ps
  -, ncurses              # tput
   , binutils-unwrapped   # strings
  +, coreutils
   , findutils
   }:
   
   # No gems used, so mkDerivation is fine.
   let
  -  additionalPath = lib.makeBinPath [ncurses procps binutils-unwrapped findutils];
  +  additionalPath = lib.makeBinPath [ getent ncurses binutils-unwrapped coreutils findutils ];
   in
   stdenv.mkDerivation rec {
     name = "nix-top-${version}";
  -  version = "0.1.0";
  +  version = "0.2.0";
   
     src = fetchFromGitHub {
       owner = "samueldr";
       repo = "nix-top";
       rev = "v${version}";
  -    sha256 = "0l50w90hs3kmdk5kb3cwjzkx38104j6n4ssqs6jpnqfc2znagpni";
  +    sha256 = "0560a9g8n4p764r3va1nn95iv4bg71g8h0wws1af2p5g553j4zps";
     };
   
     nativeBuildInputs = [
  
positive.code:     homepage = https://github.com/samueldr/nix-top;
      license = licenses.mit;
      maintainers = with maintainers; [ samueldr ];
      platforms = platforms.linux;
      inherit version;
    };
  }
  
negative.code:   ];
    
    installPhase = ''
      mkdir -p $out/bin $out/libexec/nix-top
      cp ./nix-top $out/bin/nix-top
      chmod +x $out/bin/nix-top
      wrapProgram $out/bin/nix-top \
        --prefix PATH : "$out/libexec/nix-top:${additionalPath}"
    '' + stdenv.lib.optionalString stdenv.isDarwin ''
      ln -s /bin/stty $out/libexec/nix-top
    '';
  
    meta = with lib; {
  