diff --git a/users/tazjin/nixos/modules/laptop.nix b/users/tazjin/nixos/modules/laptop.nix
index da35c787b..e0d67dc25 100644
--- a/users/tazjin/nixos/modules/laptop.nix
+++ b/users/tazjin/nixos/modules/laptop.nix
@@ -2,10 +2,11 @@
 { ... }:
 
 {
-  # Automatically detect location for redshift & timezone settings.
+  time.timeZone = "Europe/Moscow";
+
+  # Automatically detect location for redshift & so on ...
   services.geoclue2.enable = true;
   location.provider = "geoclue2";
-  services.localtimed.enable = true;
 
   # Enable power-saving features.
   services.tlp.enable = true;
diff --git a/users/tazjin/nixos/tverskoy/default.nix b/users/tazjin/nixos/tverskoy/default.nix
index 56f954c6f..03de20fc7 100644
--- a/users/tazjin/nixos/tverskoy/default.nix
+++ b/users/tazjin/nixos/tverskoy/default.nix
@@ -47,6 +47,8 @@ lib.fix (self: {
     zfs.enableUnstable = true;
   };
 
+  virtualisation.virtualbox.host.enable = true;
+
   fileSystems = {
     "/" = {
       device = "zpool/ephemeral/root";