{
  description = "Poetry2nix flake";

  edition = 201909;

  outputs = { self, nixpkgs }:
    let
      # TODO: There must be a better way to provide arch-agnostic flakes..
      systems = [ "x86_64-linux" "i686-linux" "x86_64-darwin" "aarch64-linux" ];
      forAllSystems = f: nixpkgs.lib.genAttrs systems (system: f system);
      # Memoize nixpkgs for different platforms for efficiency.
      nixpkgsFor = forAllSystems (
        system:
          import nixpkgs {
            inherit system;
            overlays = [ self.overlay ];
          }
      );
    in
      {

        overlay = import ./overlay.nix;

        # TODO: I feel like `packages` is the wrong place for the poetry2nix attr
        packages = forAllSystems (
          system: {
            inherit (nixpkgsFor.${system}) poetry poetry2nix;
          }
        );

      };
}