diff --git a/nixos/configurations/Tytonidae/default.nix b/nixos/configurations/Tytonidae/default.nix
index 91d2081..b24209a 100644
--- a/nixos/configurations/Tytonidae/default.nix
+++ b/nixos/configurations/Tytonidae/default.nix
@@ -5,7 +5,6 @@
       nixos-hardware.nixosModules.asus-fx506hm
     ])
     ++ [
-      ./i18n.nix
       ./gui.nix
       ./users
       ./kvm.nix
@@ -22,6 +21,7 @@
       unixName = "david";
       hostName = "Tytonidae";
     };
+    i18n.enable = true;
     programs = {
       dae.enable = true;
       openssh.enable = true;
diff --git a/nixos/configurations/Tytonidae/i18n.nix b/nixos/configurations/Tytonidae/i18n.nix
deleted file mode 100644
index 9f8576a..0000000
--- a/nixos/configurations/Tytonidae/i18n.nix
+++ /dev/null
@@ -1,43 +0,0 @@
-{
-  pkgs,
-  outputs,
-  ...
-}:
-{
-  i18n = {
-    defaultLocale = "C.UTF-8";
-    extraLocaleSettings = {
-      LC_ADDRESS = "zh_CN.UTF-8";
-      LC_IDENTIFICATION = "zh_CN.UTF-8";
-      LC_MEASUREMENT = "zh_CN.UTF-8";
-      LC_MONETARY = "zh_CN.UTF-8";
-      LC_NAME = "zh_CN.UTF-8";
-      LC_NUMERIC = "zh_CN.UTF-8";
-      LC_PAPER = "zh_CN.UTF-8";
-      LC_TELEPHONE = "zh_CN.UTF-8";
-      LC_TIME = "zh_CN.UTF-8";
-    };
-    inputMethod = {
-      enable = true;
-      type = "fcitx5";
-      fcitx5 = {
-        addons = with pkgs; [
-          libsForQt5.fcitx5-qt
-          fcitx5-gtk
-          fcitx5-configtool
-          fcitx5-chinese-addons
-          (fcitx5-rime.override {
-            rimeDataPkgs = (
-              with (outputs.packages."${pkgs.system}");
-              [
-                rime-ice
-              ]
-            );
-          })
-        ];
-        waylandFrontend = true;
-      };
-    };
-  };
-
-}
diff --git a/nixos/modules/i18n.nix b/nixos/modules/i18n.nix
new file mode 100644
index 0000000..e0de268
--- /dev/null
+++ b/nixos/modules/i18n.nix
@@ -0,0 +1,54 @@
+{
+  pkgs,
+  outputs,
+  lib,
+  config,
+  ...
+}:
+let
+  cfg = config.youthlic.i18n;
+in
+{
+  options = {
+    youthlic.i18n = {
+      enable = lib.mkEnableOption "zh env";
+    };
+  };
+  config = lib.mkIf cfg.enable {
+    i18n = {
+      defaultLocale = "C.UTF-8";
+      extraLocaleSettings = {
+        LC_ADDRESS = "zh_CN.UTF-8";
+        LC_IDENTIFICATION = "zh_CN.UTF-8";
+        LC_MEASUREMENT = "zh_CN.UTF-8";
+        LC_MONETARY = "zh_CN.UTF-8";
+        LC_NAME = "zh_CN.UTF-8";
+        LC_NUMERIC = "zh_CN.UTF-8";
+        LC_PAPER = "zh_CN.UTF-8";
+        LC_TELEPHONE = "zh_CN.UTF-8";
+        LC_TIME = "zh_CN.UTF-8";
+      };
+      inputMethod = {
+        enable = true;
+        type = "fcitx5";
+        fcitx5 = {
+          addons = with pkgs; [
+            libsForQt5.fcitx5-qt
+            fcitx5-gtk
+            fcitx5-configtool
+            fcitx5-chinese-addons
+            (fcitx5-rime.override {
+              rimeDataPkgs = (
+                with (outputs.packages."${pkgs.system}");
+                [
+                  rime-ice
+                ]
+              );
+            })
+          ];
+          waylandFrontend = true;
+        };
+      };
+    };
+  };
+}