diff --git a/default.nix b/default.nix
index 0599cdb..645f943 100755
--- a/default.nix
+++ b/default.nix
@@ -48,6 +48,13 @@ in {
         "cache.soopy.moe-1:0RZVsQeR+GOh0VQI9rvnHz55nVXkFardDqfm4+afjPo="
       ];
     };
+
+    optimise.automatic = true;
+    gc = {
+      automatic = true;
+      dates = "weekly";
+      options = "--delete-older-than 14d";
+    };
   };
 
   system.stateVersion = "23.11";