diff --git a/modules/base/macos-vram.nix b/modules/base/macos-vram.nix
index 362b46b..ae1d2de 100644
--- a/modules/base/macos-vram.nix
+++ b/modules/base/macos-vram.nix
@@ -3,6 +3,14 @@
 with lib;
 let
   cfg = config.modules.vram;
+
+  setWiredLimitMb = optionalString (cfg.wiredLimit != null) ''
+    wired_memsize_mb=$(($(sysctl -n hw.memsize) / 1024 / 1024))
+    sysctl -w iogpu.wired_limit_mb="$((wired_memsize_mb - ${toString (cfg.wiredLimit * 1024)}))"
+  '';
+  setWiredLowWaterMarkMb = optionalString (cfg.wiredLowWatermark != null) ''
+    sysctl -w iogpu.wired_lwm_mb="$((${toString (cfg.wiredLowWatermark * 1024)}))"
+  '';
 in helpers.darwinAttrs {
   options.modules.vram = {
     wiredLimit = mkOption {
@@ -19,18 +27,18 @@ in helpers.darwinAttrs {
   };
 
   config = mkIf (cfg.wiredLimit != null || cfg.wiredLowWatermark != null) {
-    system.activationScripts.postActivation.text = let
-      setWiredLimitMb = optionalString (cfg.wiredLimit != null) ''
-        wired_memsize_mb=$(($(sysctl -n hw.memsize) / 1024 / 1024))
-        sysctl -w iogpu.wired_limit_mb="$((wired_memsize_mb - ${toString (cfg.wiredLimit * 1024)}))"
-      '';
-      setWiredLowWaterMarkMb = optionalString (cfg.wiredLowWatermark != null) ''
-        sysctl -w iogpu.wired_lwm_mb="$((${toString (cfg.wiredLowWatermark * 1024)}))"
-      '';
-    in ''
+    system.activationScripts.postActivation.text = ''
       ${setWiredLimitMb}
       ${setWiredLowWaterMarkMb}
     '';
+
+    launchd.daemons."sysctl-wired-limit" = {
+      serviceConfig.RunAtLoad = true;
+      script = ''
+        ${setWiredLimitMb}
+        ${setWiredLowWaterMarkMb}
+      '';
+    };
   };
 }