let
  pkgs = import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/87807e64a5ef5206b745a40af118c7be8db73681.tar.gz") {};

  fhs = pkgs.buildFHSUserEnv {
    name = "my-fhs-environment";

    targetPkgs = _: [
      pkgs.python39
      pkgs.python39Packages.virtualenv
      pkgs.olm
      pkgs.glibc
    ];

    profile = ''
    '';
  };
in fhs.env