{ den, modules, ... }:
{
  modules.wivrn = {
    homeManager =
      { pkgs, ... }:
      {
        home.packages = with pkgs; [
          wivrn
          wayvr
        ];
      };

    nixos =
      { pkgs, lib, ... }:
      {
        services.wivrn = {
          enable = true;
          openFirewall = true;
          autoStart = true;
          highPriority = true;

          # Low-latency encoder config
          extraServerFlags = [ ];

          monadoEnvironment = {
            # Monado OpenXR runtime env vars
          };

          steam = {
            enable = true;
            importOXRRuntimes = true;
          };

          # Optimal config for low latency:
          # - Vulkan encoder (newer kernels) or vaapi (AMD/Intel)
          # - H265 codec (3ms overhead, better quality than H264)
          # - 90Hz refresh rate (balance quality/battery)
          # - 140% render resolution with quality supersampling
          # - Up to 200Mbit/s bitrate on good networks
          config.enable = true;
          config.json = {
            encoder = {
              encoder = "nvenc";
              codec = "h265";
            };

            # Enable mDNS discovery
            "publish-service" = "avahi";

            # High priority for async reprojection
            highPriority = true;
          };
        };

        # Include monado-vulkan-layers for VR rendering
        environment.systemPackages = with pkgs; [
          monado-vulkan-layers
        ];
      };
  };
}