diff --git a/host-registry.nix b/host-registry.nix
index a7ac7033..6253adcc 100644
--- a/host-registry.nix
+++ b/host-registry.nix
@@ -118,7 +118,7 @@ rec {
       ip6 = "2a00:8180:2c00:282:1024:5fff:febd:9be7";
     };
 
-    dacbert.ip4 = "127.0.0.1";
+    dacbert.ip4 = "dacbert.hq.c3d2.de";
   };
 
   hqGlobal = builtins.attrNames hosts;
diff --git a/hosts/dacbert/default.nix b/hosts/dacbert/default.nix
index 7ffc55d8..4f5a8bc7 100644
--- a/hosts/dacbert/default.nix
+++ b/hosts/dacbert/default.nix
@@ -19,7 +19,6 @@
   swapDevices = [ ];
 
   hardware.enableRedistributableFirmware = true;
-  #networking.wireless.enable = true;
   powerManagement.cpuFreqGovernor = lib.mkDefault "performance";
 
   boot = {
@@ -27,7 +26,7 @@
       grub.enable = false;
       raspberryPi = {
         enable = true;
-        version = 3;
+        version = 4;
         uboot.enable = true;
         firmwareConfig = ''
           gpu_mem=192
@@ -63,7 +62,7 @@
     hostName = "dacbert"; # Define your hostname.
     useDHCP = false;
     interfaces.eth0.useDHCP = true;
-    firewall.enable = true;
+    firewall.enable = false;
   };
 
   # List packages installed in system profile. To search, run:
@@ -78,6 +77,9 @@
     youtube-dl
     ncpamixer
     pulseaudio # required for pactl
+    #chromium
+    firefox
+    pavucontrol
   ];
 
   programs.tmux.enable = true;
@@ -99,11 +101,47 @@
 
   users.users.k-ot = {
     isNormalUser = true;
-    extraGroups = [ "wheel" "audio" ];
+    extraGroups = [ "wheel" "audio" "video" ];
   };
 
   c3d2.audioServer.enable = true;
 
+  # Select internationalisation properties.
+  console = {
+    font = "${pkgs.terminus_font}/share/consolefonts/ter-u28n.psf.gz";
+    keyMap = "de";
+  };
+
+  # Enable the X11 windowing system.
+  services.xserver.enable = true;
+  services.xserver.layout = "de";
+  services.xserver.xkbOptions = "eurosign:e";
+
+  services.xserver.displayManager = {
+    lightdm = { enable = true; };
+    autoLogin = {
+      enable = true;
+      user = "k-ot";
+    };
+    defaultSession = "gnome-xorg";
+  };
+  services.xserver.desktopManager = {
+    gnome.enable = true;
+    # kodi.enable = true;
+  };
+  systemd.user.services.x11vnc = {
+    description = "X11 VNC server";
+    wantedBy = [ "graphical-session.target" ];
+    partOf = [ "graphical-session.target" ];
+    serviceConfig = {
+      ExecStart = ''
+        ${pkgs.x11vnc}/bin/x11vnc -shared -forever -passwd k-ot
+      '';
+      RestartSec = 3;
+      Restart = "always";
+    };
+  };
+
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave