diff --git a/nix/hosts/chunk/default.nix b/nix/hosts/chunk/default.nix
index ac8c9f6..685ad90 100644
--- a/nix/hosts/chunk/default.nix
+++ b/nix/hosts/chunk/default.nix
@@ -11,6 +11,7 @@ in {
     [
       ./hardware-configuration.nix
       "${inputs.testpkgs}/nixos/modules/services/web-servers/caddy"
+      ../common.nix
     ];
 
   sops.defaultSopsFile = ./secrets.yaml;
@@ -181,8 +182,6 @@ in {
     };
   };
 
-  nix.settings.experimental-features = [ "nix-command" "flakes" ];
-
   services.vaultwarden = {
     enable = true;
     dbBackend = "postgresql";
@@ -237,12 +236,6 @@ in {
 
   programs.fuse.userAllowOther = true;
 
-  nix.optimise = {
-    automatic = true;
-    dates = [ "03:45" ];
-  };
-  nix.settings.auto-optimise-store = true;
-
   services.hedgedoc = {
     enable = true;
     environmentFile = "/run/secrets/hedgedoc";
diff --git a/nix/hosts/common.nix b/nix/hosts/common.nix
new file mode 100644
index 0000000..7ffead1
--- /dev/null
+++ b/nix/hosts/common.nix
@@ -0,0 +1,21 @@
+{lib,config,pkgs, ...}: {
+  nix = {
+    settings = {
+      experimental-features = "nix-command flakes";
+      auto-optimise-store = true;
+      flake-registry = "";
+    };
+    channel.enable = false;
+    optimise = {
+      automatic = true;
+      dates = ["03:45"];
+    };
+    gc = {
+      automatic = true;
+      dates = "19:00";
+      persistent = true;
+      options = "--delete-older-than 60d";
+    };
+  };
+  time.timeZone = "America/Toronto";
+}
diff --git a/nix/hosts/ytnix/default.nix b/nix/hosts/ytnix/default.nix
index 0f5dbe9..240ebdd 100644
--- a/nix/hosts/ytnix/default.nix
+++ b/nix/hosts/ytnix/default.nix
@@ -8,27 +8,9 @@
 }: {
   imports = [
     ./hardware-configuration.nix
+    ../common.nix
   ];
 
-  nix = {
-    settings = {
-      experimental-features = "nix-command flakes";
-      auto-optimise-store = true;
-      flake-registry = "";
-    };
-    channel.enable = false;
-    optimise = {
-      automatic = true;
-      dates = ["03:45"];
-    };
-    gc = {
-      automatic = true;
-      dates = "19:00";
-      persistent = true;
-      options = "--delete-older-than 60d";
-    };
-  };
-
   sops.defaultSopsFile = ./secrets.yaml;
   sops.defaultSopsFormat = "yaml";
   sops.age.keyFile = "/root/.config/sops/age/keys.txt";
@@ -75,7 +57,6 @@
     };
   };
   programs.nm-applet.enable = true;
-  time.timeZone = "America/Toronto";
 
   security.rtkit.enable = true;
   services.pipewire = {