diff --git a/osConfigs/global.nix b/osConfigs/global.nix
index 5c9929c..54957cd 100644
--- a/osConfigs/global.nix
+++ b/osConfigs/global.nix
@@ -1,16 +1,16 @@
 # **************************************************************************** #
 #                                                                              #
 #                                                         :::      ::::::::    #
-#    configuration.nix                                  :+:      :+:    :+:    #
+#    global.nix                                         :+:      :+:    :+:    #
 #                                                     +:+ +:+         +:+      #
 #    By: tomoron <tomoron@student.42angouleme.fr>   +#+  +:+       +#+         #
 #                                                 +#+#+#+#+#+   +#+            #
 #    Created: 2025/02/09 01:43:46 by tomoron           #+#    #+#              #
-#    Updated: 2025/02/09 01:50:15 by tomoron          ###   ########.fr        #
+#    Updated: 2025/02/09 03:04:10 by tomoron          ###   ########.fr        #
 #                                                                              #
 # **************************************************************************** #
 
-{ config, lib, inputs, pkgs, flakeName, ... }:
+{ lib, pkgs, flakeName, ... }:
 
 { 
   imports = [
diff --git a/osConfigs/hosts/laptop.nix b/osConfigs/hosts/laptop.nix
index 2db9bd2..768bb71 100644
--- a/osConfigs/hosts/laptop.nix
+++ b/osConfigs/hosts/laptop.nix
@@ -6,6 +6,7 @@
 	../modules/nvidia.nix
 	../modules/vboxHost.nix
   ];
+  
   boot.kernelParams = [ "kvm.enable_virt_at_load=0" ];
 #  systemd.tmpfiles.rules = [
 #    "f /dev/shm/looking-glass 0660 tom libvirtd -"
diff --git a/osConfigs/modules/game.nix b/osConfigs/modules/game.nix
index 0a835f1..8caf089 100644
--- a/osConfigs/modules/game.nix
+++ b/osConfigs/modules/game.nix
@@ -1,10 +1,14 @@
-{ config, lib, inputs, pkgs, ... }:
+{config, lib, ... }:
 
 {
-  programs.steam.enable=true; 
-  programs.steam.protontricks.enable=true;
+  options.mods.gayming.enable = lib.mkOption {
+    type = lib.types.bool;
+    default = true;
+    description = "enable games on the host";
+  };
 
-#  environment.systemPackages = with pkgs; [ qemu quickemu];
-#  programs.virt-manager.enable = true;
-#  virtualisation.libvirtd.enable = true;
+  config = lib.mkIf config.mods.gayming.enable {
+    programs.steam.enable = true; 
+    programs.steam.protontricks.enable = true;
+  };
 }
diff --git a/osConfigs/modules/nvidia.nix b/osConfigs/modules/nvidia.nix
index 02a603c..5e9dd1c 100644
--- a/osConfigs/modules/nvidia.nix
+++ b/osConfigs/modules/nvidia.nix
@@ -2,10 +2,19 @@
 { config, lib, inputs, pkgs, ... }:
 
 {
-  hardware.graphics = {
-    enable = true;
-	enable32Bit = true;
+  options.mods.nvidia-graphics.enable = lib.mkOption {
+    type = lib.types.bool;
+    default = true;
+    description = "enable my nvidia graphics settings";
+  };
+  
+  config = lib.mkIf config.mods.nvidia-graphics.enable {
+    hardware.graphics = {
+      enable = true;
+      enable32Bit = true;
+    };
+
+    services.xserver.videoDrivers = ["nvidia"];
   };
 
-  services.xserver.videoDrivers = ["nvidia"];
 }
diff --git a/osConfigs/modules/vboxHost.nix b/osConfigs/modules/vboxHost.nix
index 1dbb97c..49facef 100644
--- a/osConfigs/modules/vboxHost.nix
+++ b/osConfigs/modules/vboxHost.nix
@@ -1,6 +1,14 @@
 { config, lib, inputs, pkgs, ... }:
 
 {
-  virtualisation.virtualbox.host.enable = true;
-  users.users.tom.extraGroups = [ "vboxusers" ];
+  options.mods.virtualbox.enable = lib.mkOption {
+    type = lib.types.bool;
+	default = true;
+	description = "enable virtualbox as host";
+  };
+
+  config = lib.mkIf config.mods.virtualbox.enable {
+    virtualisation.virtualbox.host.enable = true;
+    users.users.tom.extraGroups = [ "vboxusers" ];
+  };
 }
diff --git a/osConfigs/modules/yubikey.nix b/osConfigs/modules/yubikey.nix
index b456e5b..d454a62 100644
--- a/osConfigs/modules/yubikey.nix
+++ b/osConfigs/modules/yubikey.nix
@@ -1,14 +1,29 @@
 { config, lib, inputs, pkgs, ... }:
 
 {
-  programs.gnupg.agent = {
-    enable = true;
-    enableSSHSupport = true;
+  options.mods.yubikey = {
+    enable = lib.mkOption {
+      type = lib.types.bool;
+	  default = true;
+	  description = "enable yubikey";
+	};
+
+	id = lib.mkOption {
+		type = lib.str;
+		description = "yubikey id";
+	};
   };
 
-  security.pam.yubico = {
-    enable = true;
-    id = "30536547";
-    mode = "challenge-response";
+   config = lib.mkIf config.mods.yubikey.enable {
+    programs.gnupg.agent = {
+      enable = true;
+      enableSSHSupport = true;
+    };
+
+    security.pam.yubico = {
+      enable = true;
+      id =  config.mods.yubikey.id;
+      mode = "challenge-response";
+    };
   };
 }