{ lib, ... }:
with lib.options;
with lib.types;
{
  options.modules = {
    nix.extend = mkOption {
      default = true;
      type = types.bool;
    };

    containers = {
      engine = mkOption {
        default = "podman";

        type = types.enum [
          "podman"
          "docker"
        ];
      };

      extraOptions = mkOption {
        default = [ ];
        type = types.listOf types.str;
      };
    };
  };
}