diff --git a/modules-all/default.nix b/modules-all/default.nix
index ecbdcad..ed7821e 100644
--- a/modules-all/default.nix
+++ b/modules-all/default.nix
@@ -1,4 +1,4 @@
-{ pkgs, ... }:
+{ pkgs, lib, ... }:
 
 {
 	# Enable flakes
@@ -18,12 +18,14 @@
 
 		gc = {
 			automatic = true;
-			dates = "weekly";
+			interval = {
+				Hour = 24;
+			};
 			options = "--delete-older-than 30d";
 		};
 
 		settings = {
-			auto-optimise-store = true;
+			auto-optimise-store = (if lib.strings.hasSuffix "darwin" pkgs.system then false else true);
 			experimental-features = "nix-command flakes";
 			keep-outputs = true;
 			keep-derivations = true;