{
  pkgs,
  lib,
  config,
  ...
}: let
  # list paths
  pkgs-paths-list = lib.fileset.toList (lib.fileset.fromSource (lib.sources.sourceFilesBySuffices ./. [".nix"]));
  # no default.nix
  filtered-paths-list = builtins.filter (path: builtins.baseNameOf path != "default.nix") pkgs-paths-list;
  # filename-extension parsed out
  pkgs-paths =
    builtins.map
    (path: {
      name = lib.strings.removeSuffix ".nix" (builtins.baseNameOf path);
      path = path;
    })
    filtered-paths-list;
  # import each path
  imported-pkgs = lib.attrsets.mergeAttrsList (builtins.map
    (pkg: {
      "${pkg.name}" = pkgs.callPackage pkg.path {};
    })
    pkgs-paths);
in
  imported-pkgs