{
  # Snowfall Lib provides a customized `lib` instance with access to your flake's library
  # as well as the libraries available from your flake's inputs.
  lib,
  # An instance of `pkgs` with your overlays and packages applied is also available.
  pkgs,
  # You also have access to your flake's inputs.
  inputs,

  # Additional metadata is provided by Snowfall Lib.
  namespace, # The namespace used for your flake, defaulting to "internal" if not set.
  system, # The system architecture for this host (eg. `x86_64-linux`).
  target, # The Snowfall Lib target for this system (eg. `x86_64-iso`).
  format, # A normalized name for the system target (eg. `iso`).
  virtual, # A boolean to determine whether this system is a virtual target using nixos-generators.
  systems, # An attribute map of your defined hosts.

  # All other arguments come from the module system.
  config,
  ...
}:

let
  cfg = config.modules.syncthing;
in
{
  options.modules.syncthing = {
    enable = lib.mkOption { default = false; };
  };

  config = lib.mkIf cfg.enable {
    security.polkit.enable = true;

    systemd = {
      user.services.polkit-gnome-authentication-agent-1 = {
        description = "polkit-gnome-authentication-agent-1";
        wantedBy = [ "graphical-session.target" ];
        wants = [ "graphical-session.target" ];
        after = [ "graphical-session.target" ];
        serviceConfig = {
          Type = "simple";
          ExecStart = "${pkgs.polkit_gnome}/libexec/polkit-gnome-authentication-agent-1";
          Restart = "on-failure";
          RestartSec = 1;
          TimeoutStopSec = 10;
        };
      };
    };

  };
}