{
  description = "Poetry2nix flake";

  inputs.flake-utils.url = "github:numtide/flake-utils";
  inputs.nixpkgs.url = "github:NixOS/nixpkgs";

  outputs = { self, nixpkgs, flake-utils }:
    {
      overlay = import ./overlay.nix;
    } // (flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs {
          inherit system;
          overlays = [ self.overlay ];
        };
      in
      rec {
        packages = {
          inherit (pkgs) poetry;
          poetry2nix = pkgs.poetry2nix.cli;
        };

        defaultPackage = packages.poetry2nix;

        apps = {
          poetry = flake-utils.lib.mkApp { drv = packages.poetry; };
          poetry2nix = flake-utils.lib.mkApp { drv = packages.poetry2nix; };
        };

        defaultApp = apps.poetry2nix;
      }));
}