{
  description = "Add support for deserialization of pydantic child models";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
  };

  outputs = { self, nixpkgs }: let
    system = "x86_64-linux";
    pkgs = import nixpkgs { inherit system; };
    packageName = "pydantic-uuid-model";
    version = "1.1.0";

    pydantic = (ps: ps.buildPythonPackage rec {
      pname = "pydantic";
      version = "1.9.1";
      src = ps.fetchPypi {
        inherit pname version;
        sha256 = "sha256-HtmHw/8p//f9jD6jo+qHetMQquLvmImhGeItPy2waRo=";
      };
    });
  in {

    packages."${system}" = {
      "${packageName}" = pkgs.python3Packages.callPackage ./default.nix {
        inherit packageName version;
	pydantic = (pydantic pkgs.python3Packages);
      };

      default = self.packages."${system}"."${packageName}";

      overlay = (final: prev: {
        pythonPackagesExtensions = prev.pythonPackagesExtensions ++ [
          (final: prev: {
            "${packageName}" = self.packages."${system}".default;
          })
        ];
      });

      dependencies = with pkgs; [ ];
    };

    devShell."${system}" = let
        pkgs = import nixpkgs {
          inherit system;
          overlays = [ self.packages."${system}".overlay ];
        };

        customPython = with pkgs; (pkgs.python3.withPackages (ps: [
          ps."${packageName}"
        ]));

        packages = [ customPython ] ++ self.packages."${system}".dependencies;
    in pkgs.mkShell {
      inherit packages;
    };

  };
}