{
  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-25.11";

    flake-parts.url = "github:hercules-ci/flake-parts";
  };

  outputs =
    inputs@{ self, ... }:
    inputs.flake-parts.lib.mkFlake { inherit inputs; } (
      toplevel@{ withSystem, ... }:
      {
        systems = [
          "aarch64-darwin"
          "aarch64-linux"
          "x86_64-linux"
        ];

        perSystem =
          {
            config,
            self',
            inputs',
            pkgs,
            system,
            ...
          }:
          {
            _module.args.pkgs = import inputs.nixpkgs {
              localSystem = system;
              config = {
                allowUnfree = true;
                allowAliases = true;
              };
              # overlays = [self.overlays.default];
            };

            devShells.default = pkgs.mkShell {
              buildInputs = with pkgs; [ nixfmt-tree ];
            };

            # packages = import ./lib/packages.nix pkgs;
          };

        flake = {
          lib = import ./lib inputs.nixpkgs withSystem;

          # overlays.default = final: prev: (import ./lib/packages.nix prev);

          nixosModules.default =
            { ... }:
            {
              imports = self.lib.utils.findNixFiles ./common;
            };
        };
      }
    );
}