{
  config,
  pkgs,
  lib,
  ...
}:
{
  # Integration can be improved, if the following issues get implemented:
  # - cli frontend: https://github.com/localsend/localsend/issues/11
  # - ipv6 support: https://github.com/localsend/localsend/issues/549
  options.clan.localsend = {
    enable = lib.mkEnableOption "enable the localsend module";
    defaultLocation = lib.mkOption {
      type = lib.types.str;
      description = "The default download location";
    };
    package = lib.mkPackageOption pkgs "localsend" { };
  };

  config = lib.mkIf config.clan.localsend.enable {
    clan.core.state.localsend.folders = [
      "/var/localsend"
      config.clan.localsend.defaultLocation
    ];
    environment.systemPackages = [ config.clan.localsend.package ];

    networking.firewall.interfaces."zt+".allowedTCPPorts = [ 53317 ];
    networking.firewall.interfaces."zt+".allowedUDPPorts = [ 53317 ];

    #TODO: This is currently needed because there is no ipv6 multicasting support yet
    #
    systemd.network.networks."09-zerotier" = {
      networkConfig = {
        Address = "192.168.56.2/24";
      };
    };
  };
}