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

  options = {
    myModules.enableCaddy = lib.mkOption {
      type = lib.types.bool;
      default = false;
      description = "Enable Caddy server";
    };
  };

  config = lib.mkMerge [
    (lib.mkIf config.myModules.enableCaddy {
      services.caddy = {
        enable = true;
        package = pkgs.caddy.withPlugins {
          # update time to time
          # last update: 2025-03-02
          plugins = ["github.com/caddy-dns/cloudflare@v0.0.0-20250228175314-1fb64108d4de"];
          hash = "sha256-3nvVGW+ZHLxQxc1VCc/oTzCLZPBKgw4mhn+O3IoyiSs=";
        };
        email = "contact@osbm.dev";
        extraConfig = ''
          # (cloudflare) {
          #     tls {
          #       dns cloudflare {env.CF_API_TOKEN}
          #     }
          #   }
          acme_dns cloudflare {env.CF_API_TOKEN}
        '';
      };

      networking.firewall.allowedTCPPorts = [80 443 3000];

      environment.systemPackages = with pkgs; [
        nssTools
      ];

      systemd.services.caddy.serviceConfig = {
        EnvironmentFile = "/etc/caddy/.env";
      };
    })
  ];
}