diff --git a/flake.nix b/flake.nix
index 6742e8d..073d510 100644
--- a/flake.nix
+++ b/flake.nix
@@ -97,7 +97,11 @@
           ./users/kopatz.nix
           ./modules/graphical/plasma.nix
           ./modules/graphical/shared.nix
+          ./modules/hardware/nvidia.nix
           ./modules/hardware/ssd.nix
+          ./modules/hardware/firmware.nix
+          # use latest kernel
+          ./modules/kernel.nix
           ./modules/nix/settings.nix
           ./modules/nix/index.nix
           ./modules/nix/ld.nix
@@ -107,6 +111,7 @@
           ./modules/noise-supression.nix
           ({ config, pkgs, ... }: { nixpkgs.overlays = [ overlay-unstable ]; })
           ./modules/wooting.nix
+          ./modules/wireshark.nix
           ./modules/tmpfs.nix
           ./modules/support/ntfs.nix
           ./systems/pc/configuration.nix
diff --git a/modules/adguard.nix b/modules/adguard.nix
index 870871b..a20d753 100644
--- a/modules/adguard.nix
+++ b/modules/adguard.nix
@@ -42,6 +42,10 @@ in
           "domain" = "server.local";
           "answer" = ip;
          }
+         {
+          "domain" = "activitytracker.site";
+          "answer" = ip;
+         }
          {
           "domain" = "adguard.local";
           "answer" = ip;
diff --git a/modules/graphical/shared.nix b/modules/graphical/shared.nix
index f926d6e..68b5bbd 100644
--- a/modules/graphical/shared.nix
+++ b/modules/graphical/shared.nix
@@ -20,7 +20,7 @@ in
   programs.kdeconnect.enable = true;
 
   fonts.fontDir.enable = true;
-  fonts.fonts = with pkgs; [
+  fonts.packages = with pkgs; [
     nerdfonts
   ];
 
@@ -79,6 +79,8 @@ in
     unstable.libreoffice-fresh
     mangohud
     screenshot
+    glxinfo
+    vulkan-tools
   ];
 
   environment.sessionVariables = {
diff --git a/modules/hardware/firmware.nix b/modules/hardware/firmware.nix
new file mode 100644
index 0000000..a62f709
--- /dev/null
+++ b/modules/hardware/firmware.nix
@@ -0,0 +1,3 @@
+{
+  services.fwupd.enable = true;
+}
diff --git a/modules/hardware/nvidia.nix b/modules/hardware/nvidia.nix
new file mode 100644
index 0000000..ce5757f
--- /dev/null
+++ b/modules/hardware/nvidia.nix
@@ -0,0 +1,33 @@
+{config, pkgs, ...}:
+{
+  # Enable OpenGL
+  hardware.opengl = {
+    enable = true;
+    driSupport = true;
+    driSupport32Bit = true;
+  };
+
+  services.xserver.videoDrivers = ["nvidia"];
+  hardware.nvidia = {
+    # Modesetting is required.
+    modesetting.enable = true;
+    # Nvidia power management. Experimental, and can cause sleep/suspend to fail.
+    powerManagement.enable = false;
+    # Fine-grained power management. Turns off GPU when not in use.
+    # Experimental and only works on modern Nvidia GPUs (Turing or newer).
+    powerManagement.finegrained = false;
+    # Use the NVidia open source kernel module (not to be confused with the
+    # independent third-party "nouveau" open source driver).
+    # Support is limited to the Turing and later architectures. Full list of 
+    # supported GPUs is at: 
+    # https://github.com/NVIDIA/open-gpu-kernel-modules#compatible-gpus 
+    # Only available from driver 515.43.04+
+    # Currently alpha-quality/buggy, so false is currently the recommended setting.
+    open = false;
+    # Enable the Nvidia settings menu,
+	# accessible via `nvidia-settings`.
+    nvidiaSettings = true;
+    # Optionally, you may need to select the appropriate driver version for your specific GPU.
+    package = config.boot.kernelPackages.nvidiaPackages.stable;
+  };
+}
diff --git a/modules/kernel.nix b/modules/kernel.nix
new file mode 100644
index 0000000..91314b1
--- /dev/null
+++ b/modules/kernel.nix
@@ -0,0 +1,4 @@
+{pkgs, ...}:
+{
+  boot.kernelPackages = pkgs.linuxPackages_latest;
+}
diff --git a/register_matrix_user.md b/register_matrix_user.md
new file mode 100644
index 0000000..37074f1
--- /dev/null
+++ b/register_matrix_user.md
@@ -0,0 +1,7 @@
+$ nix-shell -p matrix-synapse
+$ register_new_matrix_user -k your-registration-shared-secret http://localhost:8008
+New user localpart: your-username
+Password:
+Confirm password:
+Make admin [no]:
+Success!
diff --git a/systems/pc/configuration.nix b/systems/pc/configuration.nix
index ee4aa54..bb91845 100644
--- a/systems/pc/configuration.nix
+++ b/systems/pc/configuration.nix
@@ -14,36 +14,6 @@
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
 
-  # Enable OpenGL
-  hardware.opengl = {
-    enable = true;
-    driSupport = true;
-    driSupport32Bit = true;
-  };
-
-  services.xserver.videoDrivers = ["nvidia"];
-  hardware.nvidia = {
-    # Modesetting is required.
-    modesetting.enable = true;
-    # Nvidia power management. Experimental, and can cause sleep/suspend to fail.
-    powerManagement.enable = false;
-    # Fine-grained power management. Turns off GPU when not in use.
-    # Experimental and only works on modern Nvidia GPUs (Turing or newer).
-    powerManagement.finegrained = false;
-    # Use the NVidia open source kernel module (not to be confused with the
-    # independent third-party "nouveau" open source driver).
-    # Support is limited to the Turing and later architectures. Full list of 
-    # supported GPUs is at: 
-    # https://github.com/NVIDIA/open-gpu-kernel-modules#compatible-gpus 
-    # Only available from driver 515.43.04+
-    # Currently alpha-quality/buggy, so false is currently the recommended setting.
-    open = false;
-    # Enable the Nvidia settings menu,
-	# accessible via `nvidia-settings`.
-    nvidiaSettings = true;
-    # Optionally, you may need to select the appropriate driver version for your specific GPU.
-    package = config.boot.kernelPackages.nvidiaPackages.stable;
-  };
   networking.hostName = "kop-pc"; # Define your hostname.
 
   # Enable networking
diff --git a/users/kopatz.nix b/users/kopatz.nix
index aa23b93..ac8a7f9 100644
--- a/users/kopatz.nix
+++ b/users/kopatz.nix
@@ -52,7 +52,6 @@ in
     packages = with pkgs; [
       (discord.override { withVencord = true; })
       librewolf
-      ungoogled-chromium
       brave
     ];
     openssh.authorizedKeys.keys = [