diff --git a/common/default.nix b/common/default.nix
index 55263e0..beeb47f 100644
--- a/common/default.nix
+++ b/common/default.nix
@@ -5,10 +5,12 @@
 
   # Set your time zone.
   time.timeZone = "Europe/Berlin";
-  # networking.useDHCP = false;  TODO: why was this globally disabled?
+  # networking.useDHCP = false;  TODO: why was this globally disabled? Because it should be! DHCP should only be enabled per interface.
   networking.firewall.allowedTCPPorts = [ 19999 ];
   services.netdata.enable = true;
 
+  services.qemuGuest.enable = true;
+
   # Select internationalisation properties.
   i18n.defaultLocale = "en_US.UTF-8";
   console = {