feat: locale module

modules/nixos/locale/default.nix

@@ -0,0 +1,44 @@
+{ config, lib, ... }:
+let
+  inherit (lib) mkDefault mkEnableOption mkIf;
+  cfg = config.ataraxia.defaults.locale;
+
+  c = "C.UTF-8";
+  dk = "en_DK.UTF-8";
+  gb = "en_GB.UTF-8";
+  ie = "en_IE.UTF-8";
+  ru = "ru_RU.UTF-8";
+  us = "en_US.UTF-8";
+  lang = "en_IE:en_US:en:C:ru_RU";
+in
+{
+  options.ataraxia.defaults.locale = {
+    enable = mkEnableOption "Default locale settings";
+  };
+
+  config = mkIf cfg.enable {
+    environment.sessionVariables = {
+      XKB_DEFAULT_LAYOUT = "us,ru";
+      XKB_DEFAULT_OPTIONS = "grp:win_space_toggle";
+    };
+    i18n.defaultLocale = ie;
+    i18n.extraLocaleSettings = {
+      LANGUAGE = lang;
+      LC_TIME = dk;
+      LC_ADDRESS = ru;
+      LC_MONETARY = ru;
+      LC_NUMERIC = ru;
+      LC_PAPER = ru;
+      LC_TELEPHONE = ru;
+    };
+    i18n.supportedLocales = map (x: "${x}/UTF-8") [
+      c
+      dk
+      gb
+      ie
+      ru
+      us
+    ];
+    time.timeZone = mkDefault "Europe/Moscow";
+  };
+}

modules/nixos/roles/default.nix

@@ -32,6 +32,7 @@ in
   config =
     let
       baseRole = {
+        ataraxia.defaults.locale.enable = mkDefault true;
         ataraxia.defaults.lix.enable = mkDefault true;
         ataraxia.defaults.nix.enable = mkDefault true;
         ataraxia.defaults.ssh.enable = mkDefault true;