{
  description = "A very basic flake";

  inputs = {
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs = { self, nixpkgs, flake-utils }:
  flake-utils.lib.eachDefaultSystem (system:
  let
    pkgs = nixpkgs.legacyPackages.${system};
    myPkgs = rec {
      agtest = pkgs.python39Packages.callPackage ./. {};
    };
  in
  {
    packages = flake-utils.lib.flattenTree myPkgs;
  });
}