diff --git a/modules/base.nix b/modules/base.nix
index 3ce779b..3b96f02 100644
--- a/modules/base.nix
+++ b/modules/base.nix
@@ -6,10 +6,25 @@ with lib;
   nix = {
    extraOptions = "experimental-features = nix-command flakes";
    package = pkgs.nixFlakes; 
+   gc = {
+     automatic = true;
+     dates = "weekly";
+     options = "--delete-older-than 20d";
+   };
+   settings = {
+     auto-optimise-store = true;
+   };
   };
-
   nixpkgs.config.allowUnFree = true;
 
+  system.autoUpgrade = {
+    enable = true;
+    dates = "02:00";
+    allowReboot = false;
+    flake = "${config.users.users.chris.home}/conf";
+    flags = [ "--update-input" "nixpkgs" "--commit-lock-file" ];
+  };
+
   # Use the systemd-boot EFI boot loader.
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;