{ lib, poetry2nix, postgresql_14, runCommandCC, stdenv }:

let env = poetry2nix.mkPoetryEnv { projectDir = ./.; };
in if stdenv.isDarwin then
  env
else
  runCommandCC "subdirectory-test"
  {
    PSYCOPG_IMPL = "python";
    LD_LIBRARY_PATH = lib.makeLibraryPath [ postgresql_14 ];
  } ''
    '${env}/bin/python' -c 'import psycopg'
    touch "$out"
  ''