diff --git a/roles/default.nix b/roles/default.nix
index 64631b4..7c2b3a4 100644
--- a/roles/default.nix
+++ b/roles/default.nix
@@ -59,6 +59,12 @@ with lib;
           "https://hyprland.cachix.org"
         ];
       };
+
+      gc = {
+        automatic = true;
+        randomizedDelaySec = "14m";
+        options = "--delete-older-than 10d";
+      };
     };
 
     nixpkgs.config.allowUnfree = true;