{
  config,
  lib,
  pkgs,
  ...
}:

let
  cfg = config.os.srv.nginx;
in
{
  options.os.srv.nginx = {
    enable = lib.mkEnableOption "the NGINX reverse proxy service";

    openFirewall = lib.mkOption {
      type = lib.types.bool;
      default = true;
      description = "Whether to open ports 80 and 443 in the firewall.";
    };
  };

  config = lib.mkIf cfg.enable {
    services.nginx = {
      enable = true;
      package = pkgs.nginx.override { openssl = pkgs.libressl; };

      recommendedProxySettings = true;
      recommendedTlsSettings = true;
      recommendedOptimisation = true;
      recommendedGzipSettings = true;
      virtualHosts = {
        default = {
          serverName = "_";
          default = true;
          rejectSSL = true;
          locations."/".return = "444";
        };
      };
    };

    security.acme = {
      acceptTerms = true;
      defaults.email = "adikro@disroot.org";
    };

    # users.users.nginx.extraGroups = [ "acme" ];

    networking.firewall.allowedTCPPorts = lib.mkIf cfg.openFirewall [
      80
      443
    ];

    systemd.tmpfiles.rules = [
      "d /var/log/nginx 0750 nginx adm -"
    ];
  };
}