diff --git a/hosts/kardorf/default.nix b/hosts/kardorf/default.nix
index 57eabfe..6cc52d6 100644
--- a/hosts/kardorf/default.nix
+++ b/hosts/kardorf/default.nix
@@ -2,8 +2,7 @@
   pwd,
   pkgs,
   ...
-}:
-{
+}: {
   imports = [
     ./hardware-configuration.nix
 
@@ -37,6 +36,9 @@
   # Not using the drivers leads to way better results
   # services.xserver.videoDrivers = [ "nvidia" ];
 
+  programs.ausweisapp.enable = true;
+  programs.ausweisapp.openFirewall = true; # for pairing with smartphone
+
   modules = {
     syncthing = {
       enable = true;
@@ -44,7 +46,7 @@
     };
   };
 
-  networking.networkmanager.insertNameservers = [ "192.168.3.252" ];
+  networking.networkmanager.insertNameservers = ["192.168.3.252"];
 
   programs.kdeconnect.enable = true;
   programs.steam.enable = true;
@@ -55,7 +57,7 @@
   # Enable CUPS to print documents.
   services.printing.enable = true;
   services.printing.browsing = true;
-  services.printing.drivers = with pkgs; [ gutenprint ];
+  services.printing.drivers = with pkgs; [gutenprint];
 
   services.libinput.enable = true;
 }