diff --git a/common/default.nix b/common/default.nix
index 6caf230..e7aba5f 100644
--- a/common/default.nix
+++ b/common/default.nix
@@ -5,10 +5,18 @@
     ./users.nix
     ./motd.nix
   ];
+
   nix = {
     package = pkgs.lix;
     settings.experimental-features = [ "nix-command" "flakes" ];
   };
+
+  nix.gc = {
+    automatic = true;
+    options = "--delete-older-than 14d";
+    randomizedDelaySec = "30min";
+  };
+
   environment.systemPackages = with pkgs; [
       vim
       wget
@@ -19,6 +27,7 @@
       git
       podman-tui
   ];
+
   services.dbus.enable = true;
   services.dbus.implementation = "broker";
   programs.mtr.enable = true;
@@ -28,6 +37,7 @@
     wheelNeedsPassword = false;
     execWheelOnly = true;
   };
+
   networking.firewall.enable = false;
   services.openssh = {
     enable = true;