{
  config,
  lib,
  this,
  ...
}:
with lib;
let
  cfg = config.nixfiles.modules.node-exporter;
in
{
  options.nixfiles.modules.node-exporter.enable = mkEnableOption "Prometheus Node Exporter";

  config = mkIf cfg.enable {
    services.prometheus.exporters.node = {
      enable = true;
      listenAddress = mkDefault this.wireguard.ipv4.address;
      port = 9100;
      enabledCollectors = [
        "buddyinfo"
        "cgroups"
        "ethtool"
        "interrupts"
        "ksmd"
        "lnstat"
        "logind"
        "mountstats"
        "network_route"
        "processes"
        "qdisc"
        "systemd"
        "zoneinfo"
      ];
    };
  };
}