{
  povSelf,
  config,
  lib,
  ...
}:
let
  inherit (lib) types;
  cfg = lib.getAttrFromPath povSelf config;

in
{

  options = {
    enable = {
      type = types.bool;
      default = false;
    };
  };

  config = lib.mkIf cfg.enable {
    services = {
      prometheus.exporters = {
        node = {
          enable = true;
          listenAddress = "[::1]";
          port = 9100;
          enabledCollectors = [
            "systemd"
            "processes"
          ];
        };

        systemd = {
          enable = true;
          listenAddress = "[::1]";
          port = 9558;
        };
      };

      nginx.virtualHosts."${config.networking.fqdn}".locations = {
        "/node-exporter".proxyPass =
          "http://${toString config.services.prometheus.exporters.node.listenAddress}:${toString config.services.prometheus.exporters.node.port}/metrics";
        "/systemd-exporter".proxyPass =
          "http://${toString config.services.prometheus.exporters.systemd.listenAddress}:${toString config.services.prometheus.exporters.systemd.port}/metrics";
      };
    };
  };

}