diff --git a/systems/smolboi/home.nix b/systems/smolboi/home.nix
index 4255c9a..a58250f 100644
--- a/systems/smolboi/home.nix
+++ b/systems/smolboi/home.nix
@@ -79,10 +79,22 @@
     tray.enable = true;
   };
 
-  systemd.user.targets.tray = {
-    Unit = {
-      Description = "System Tray";
-      Requires = [ "graphical-session-pre.target" ];
+  systemd.user = {
+    services.gc = {
+      Service = {
+        Exec = "nix-collect-garbage --delete-older-than 30d";
+      };
+    };
+    timers.gc = {
+      Timer = {
+        OnCalendar = "weekly";
+      };
+    };
+    targets.tray = {
+      Unit = {
+        Description = "System Tray";
+        Requires = [ "graphical-session-pre.target" ];
+      };
     };
   };