{ pkgs }:

let
  inherit (pkgs) lib;

  callPackage = lib.callPackageWith (pkgs // pkgs.python3.pkgs // self);

  self = builtins.listToAttrs (
    builtins.map
      (name: {
        inherit name;
        value = callPackage (./. + "/${name}.nix") { };
      })
      [
        "pydantic"
        "pydantic-core"
      ]
  );
in
self