{ lib, stdenv }:

stdenv.mkDerivation {
  pname = "hello-world";
  version = "1.0.0";

  dontUnpack = true;

  installPhase = ''
        mkdir -p $out/bin
        cat > $out/bin/hello-world <<'SCRIPT'
        #!/bin/sh
        echo "Hello, world!"
    SCRIPT
        chmod +x $out/bin/hello-world
  '';

  meta = with lib; {
    description = "A tiny hello-world program used as an example package";
    license = licenses.bsd2;
    platforms = platforms.unix;
  };
}