{ pkgs ? import <nixpkgs> {}, version }:

let
  dep-dep = pkgs.stdenv.mkDerivation {
    pname = "test-indirect-dependency";
    dontUnpack = true;
    inherit version;
    installPhase = ''
      mkdir -p $out/bin
      echo ${version} > $out/bin/output.txt
    '';
  };

  dep = pkgs.stdenv.mkDerivation {
    pname = "test-dependency";
    dontUnpack = true;
    inherit version;
    installPhase = ''
      mkdir -p $out/bin
      echo ${dep-dep} > $out/bin/output.txt
    '';
  };

  pkg = pkgs.stdenv.mkDerivation {
    pname = "test-package";
    dontUnpack = true;
    outputs = [ "out" ];
    inherit version;
    installPhase = ''
      mkdir -p $out/bin
      echo ${dep} > $out/bin/output.txt
    '';
  };

in { inherit pkg; }