{ pkgs ? import {} }: let python-with-my-packages = pkgs.python3.withPackages (p: with p; [ minio ]); in pkgs.mkShell { buildInputs = [ python-with-my-packages pkgs.age pkgs.postgresql_14 ]; shellHook = '' PYTHONPATH=${python-with-my-packages}/${python-with-my-packages.sitePackages} ''; }