nix-config/modules/nixos/networking/newt.nix

{
  flake.modules.nixos.networking = {
    config,
    lib,
    ...
  }:
    with lib; let
      cfg = config.tnix.networking.newt;
    in {
      options.tnix.networking.newt = {
        enable = mkEnableOption "Newt";

        environmentFile = mkOption {
          type = types.nullOr types.path;
          default = null;
          description = "Environment file with secrets passed to Newt";
        };
      };

      config = mkIf cfg.enable {
        services.newt = {
          enable = true;
          environmentFile = cfg.environmentFile;
        };
      };
    };
}