use modules

modules/i18n.nix

@@ -0,0 +1,38 @@
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}: {
+  time.timeZone = "Europe/Istanbul";
+
+  # Select internationalisation properties.
+  i18n.defaultLocale = "en_US.UTF-8";
+
+  i18n.extraLocaleSettings = {
+    LC_ADDRESS = "tr_TR.UTF-8";
+    LC_IDENTIFICATION = "tr_TR.UTF-8";
+    LC_MEASUREMENT = "tr_TR.UTF-8";
+    LC_MONETARY = "tr_TR.UTF-8";
+    LC_NAME = "tr_TR.UTF-8";
+    LC_NUMERIC = "tr_TR.UTF-8";
+    LC_PAPER = "tr_TR.UTF-8";
+    LC_TELEPHONE = "tr_TR.UTF-8";
+    LC_TIME = "ja_JP.UTF-8";
+  };
+
+  services.xserver.xkb = {
+    layout = "us";
+    variant = "";
+  };
+
+  i18n.inputMethod = {
+    type = "fcitx5";
+    enable = true;
+    fcitx5.addons = with pkgs; [
+      fcitx5-mozc
+      fcitx5-gtk
+      fcitx5-nord # a color theme
+    ];
+  };
+}