diff --git a/systems/x86_64-linux/aspi/default.nix b/systems/x86_64-linux/aspi/default.nix
index 42bb7dc..11d21c4 100644
--- a/systems/x86_64-linux/aspi/default.nix
+++ b/systems/x86_64-linux/aspi/default.nix
@@ -93,6 +93,29 @@
   services.openssh.enable = false;
   services.flatpak.enable = true;
 
+  security.krb5.enable = true;
+  security.krb5.settings = {
+    # domain_realm = {
+    #   ".julian-mutter.de" = "julian-mutter.de";
+    #   "julian-mutter.de" = "julian-mutter.de";
+    # };
+    libdefaults = {
+      default_realm = "julian-mutter.de";
+      #   dns_lookup_realm = true;
+      #   dns_lookup_kdc = true;
+      #   ticket_lifetime = "24h";
+      #   renew_lifetime = "7d";
+    };
+    realms = {
+      "julian-mutter.de" = {
+        kdc = [ "kerberos.julian-mutter.de" ];
+        admin_server = "kerberos-admin.julian-mutter.de";
+        default_domain = "julian-mutter.de";
+      };
+    };
+  };
+
+  hardware.nvidia-container-toolkit.enable = true; # use gpu inside docker
   virtualisation.docker.enable = true;
 
   # Do not alway generate man-cache, making builds much faster