diff --git a/hosts/nas/default.nix b/hosts/nas/default.nix
index 3e86aa6..223cf07 100644
--- a/hosts/nas/default.nix
+++ b/hosts/nas/default.nix
@@ -9,7 +9,8 @@
     ./hardware-configuration.nix
     ./networking.nix
     ../common/nixos
-    ../common/nixos/auto-upgrade.nix
+    # this breaks because of git-secrets
+    #../common/nixos/auto-upgrade.nix
     ../common/nixos/users/nix
     ../common/optional/avahi.nix
     ../common/optional/fish.nix
diff --git a/hosts/nas/hardware-configuration.nix b/hosts/nas/hardware-configuration.nix
index ad9a5a6..4e78953 100644
--- a/hosts/nas/hardware-configuration.nix
+++ b/hosts/nas/hardware-configuration.nix
@@ -26,6 +26,9 @@
     timeout = 10;
   };
 
+  # TODO: revisit this; last time I tried this, br0 didn't come up
+  #hardware.ksm.enable = true; # enable kernel same-page merging
+
   fileSystems."/" = {
     device = "/dev/disk/by-label/nixos";
     fsType = "ext4";