diff --git a/1systems/pornocauster.nix b/1systems/pornocauster.nix
index 2185945..40aa5bb 100644
--- a/1systems/pornocauster.nix
+++ b/1systems/pornocauster.nix
@@ -9,13 +9,19 @@
       ../2configs/base.nix
       ../2configs/main-laptop.nix #< base-gui
 
+      # Krebs
       ../2configs/tinc-basic-retiolum.nix
+      #../2configs/disable_v6.nix
+
       #../2configs/sda-crypto-root.nix
       ../2configs/sda-crypto-root-home.nix
 
       ../2configs/zsh-user.nix
+
+      # applications
       ../2configs/exim-retiolum.nix
-      #../2configs/disable_v6.nix
+      ../2configs/virtualization.nix
+      ../2configs/wwan.nix
 
       # hardware specifics are in here
       ../2configs/tp-x220.nix
diff --git a/2configs/virtualization.nix b/2configs/virtualization.nix
new file mode 100644
index 0000000..b3f8c82
--- /dev/null
+++ b/2configs/virtualization.nix
@@ -0,0 +1,8 @@
+{ config, lib, pkgs, ... }:
+
+let
+  mainUser = config.krebs.build.user;
+in {
+  virtualisation.libvirtd.enable = true;
+  users.extraUsers.${mainUser.name}.extraGroups = [ "libvirtd" ];
+}
diff --git a/2configs/wwan.nix b/2configs/wwan.nix
index 1492213..dd1c630 100644
--- a/2configs/wwan.nix
+++ b/2configs/wwan.nix
@@ -1,5 +1,7 @@
 { config, lib, pkgs, ... }:
 
+#usage: $ wvdial
+
 let
   mainUser = config.krebs.build.user;
 in {