nixos/immersed-vr: init module

nixos/modules/module-list.nix

@@ -213,6 +213,7 @@
   ./programs/iay.nix
   ./programs/iftop.nix
   ./programs/i3lock.nix
+  ./programs/immersed-vr.nix
   ./programs/iotop.nix
   ./programs/java.nix
   ./programs/joycond-cemuhook.nix

nixos/modules/programs/immersed-vr.nix

@@ -0,0 +1,34 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+let
+  cfg = config.programs.immersed-vr;
+in
+{
+
+  options = {
+    programs.immersed-vr = {
+      enable = lib.mkEnableOption "immersed-vr";
+
+      package = lib.mkPackageOption pkgs "immersed-vr" {};
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    boot = {
+      kernelModules = [ "v4l2loopback" "snd-aloop" ];
+      extraModulePackages = [ config.boot.kernelPackages.v4l2loopback ];
+      extraModprobeConfig = ''
+        options v4l2loopback exclusive_caps=1 card_label="v4l2loopback Virtual Camera"
+      '';
+    };
+
+    environment.systemPackages = [ cfg.package ];
+  };
+
+  meta.maintainers = pkgs.immersed-vr.meta.maintainers;
+}