let
  bash-test = subdir: { runCommandLocal, makeWrapper }:
    runCommandLocal "${subdir}-test" { nativeBuildInputs = [ makeWrapper ]; }
      ''
        mkdir -p $out/bin
        install ${./${subdir}/test} $out/bin/${subdir}-test
        wrapProgram "$out/bin/${subdir}-test" --set FLAKE ${../.}
      '';
in {
  a2-p1 = bash-test "part1";
  a2-p2 = bash-test "part2";
  a2-p3 = bash-test "part3";
}