diff --git a/hosts/eos/hardware-configuration.nix b/hosts/eos/hardware-configuration.nix
index 94b147f..edb02a7 100644
--- a/hosts/eos/hardware-configuration.nix
+++ b/hosts/eos/hardware-configuration.nix
@@ -7,11 +7,12 @@
 
   boot = {
     initrd.availableKernelModules = [ "ehci_pci" "ahci" "usb_storage" "sd_mod" "sdhci_pci" ];
-    initrd.kernelModules = [ ];
     initrd.supportedFilesystems = [ "zfs" ];
-    kernelModules = [ ];
+    kernel.sysctl = {
+      "kernel.nmi_watchdog" = 0;
+      "vm.laptop_mode" = 5;
+    };
     kernelParams = [ "elevator=none" ];
-    extraModulePackages = [ ];
     supportedFilesystems = [ "zfs" ];
   };
 
diff --git a/hosts/hypnos/hardware-configuration.nix b/hosts/hypnos/hardware-configuration.nix
index 88dd874..6519242 100644
--- a/hosts/hypnos/hardware-configuration.nix
+++ b/hosts/hypnos/hardware-configuration.nix
@@ -7,6 +7,10 @@
 
   boot = {
     initrd.availableKernelModules = [ "xhci_pci" "ahci" "usbhid" "usb_storage" "sd_mod" ];
+    kernel.sysctl = {
+      "kernel.nmi_watchdog" = 0;
+      "vm.laptop_mode" = 5;
+    };
     kernelModules = [ "applesmc" "kvm-intel" "wl" ];
     extraModulePackages = [
       config.boot.kernelPackages.broadcom_sta