diff --git a/lib/boot.nix b/lib/boot.nix
index 851ae5c..8e3254f 100644
--- a/lib/boot.nix
+++ b/lib/boot.nix
@@ -7,6 +7,6 @@
             canTouchEfiVariables = true;
         };
     };
-    kernelPackages = pkgs.linuxPackages_latest;
+    kernelPackages = if (config.fndx.hardware.vbox.enable) then pkgs.linuxPackages_6_12 else pkgs.linuxPackages_latest;
   };
 }
diff --git a/modules/hardware/default.nix b/modules/hardware/default.nix
index b122f26..8268fa3 100644
--- a/modules/hardware/default.nix
+++ b/modules/hardware/default.nix
@@ -6,5 +6,6 @@
       ./nvidia.nix
       ./pulseaudio.nix
       ./touchpad.nix
+      ./vm.nix
   ];
 }
diff --git a/modules/hardware/vm.nix b/modules/hardware/vm.nix
new file mode 100644
index 0000000..8b9b018
--- /dev/null
+++ b/modules/hardware/vm.nix
@@ -0,0 +1,9 @@
+{config, lib, pkgs, ...}:
+with lib;
+{
+    options.fndx.hardware.vbox.enable = mkEnableOption "virtual box support in case ctOS runs in a vm";
+
+    config = mkIf config.fndx.hardware.vbox.enable {
+		virtualisation.virtualbox.guest.enable = true;
+    };
+}
diff --git a/modules/services/mailserver.nix b/modules/services/mailserver.nix
index c65ba55..2bb379a 100644
--- a/modules/services/mailserver.nix
+++ b/modules/services/mailserver.nix
@@ -8,7 +8,7 @@ with lib;
         # Importing nixos mailserver
 	    (builtins.fetchTarball {
                 url = "https://gitlab.com/simple-nixos-mailserver/nixos-mailserver/-/archive/nixos-25.11/nixos-mailserver-nixos-25.11.tar.gz";
-                sha256 = "0pqc7bay9v360x2b7irqaz4ly63gp4z859cgg5c04imknv0pwjqw";
+                sha256 = "1w7kinbjpk678dgi3jxw6j24rgrm3fjmjvkxi3rp5v14w28byy9m";
 	    })
 	];
     options = {
diff --git a/pkgs/default.nix b/pkgs/default.nix
index bb5a5a9..f33c023 100644
--- a/pkgs/default.nix
+++ b/pkgs/default.nix
@@ -9,6 +9,7 @@
     ./gtk/nix-gtk.nix
     ./i3/nix-i3.nix
     ./javakit/nix-javakit.nix
+    ./k8s/nix-k8s.nix
     ./lix/nix-lix.nix
     ./nautilus/nix-nautilus.nix
     ./picom/nix-picom.nix
diff --git a/pkgs/k8s/nix-k8s.nix b/pkgs/k8s/nix-k8s.nix
new file mode 100644
index 0000000..e7d481c
--- /dev/null
+++ b/pkgs/k8s/nix-k8s.nix
@@ -0,0 +1,29 @@
+{config, lib, pkgs, ...}:
+with lib;
+let
+	my-kubernetes-helm = with pkgs; wrapHelm kubernetes-helm {
+		plugins = with pkgs.kubernetes-helmPlugins; [
+			helm-secrets
+			helm-diff
+			helm-s3
+			helm-git
+		];
+	};
+
+	my-helmfile = pkgs.helmfile-wrapped.override {
+		inherit (my-kubernetes-helm) pluginsDir;
+	};
+in
+{
+    options = {
+        fndx.packages.k8s.enable = mkEnableOption "K8s clients";  
+    };
+
+    config = mkIf config.fndx.packages.k8s.enable {
+		environment.systemPackages = with pkgs; [
+			my-kubernetes-helm
+			my-helmfile
+			kubectl
+		];
+    };
+}