Split language from region: omarchy-language and Setup > Language own LANG

omarchy-region and install/config/region.sh no longer touch the locale;
both logout prompts are worded through omarchy-text.

bin/omarchy

@@ -58,6 +58,7 @@ GROUP_DESCRIPTIONS[hw]="Hardware detection and controls"
 GROUP_DESCRIPTIONS[hyprland]="Hyprland window, monitor, and toggle controls"
 GROUP_DESCRIPTIONS[install]="Optional software installers"
 GROUP_DESCRIPTIONS[installed]="Installed optional service checks"
+GROUP_DESCRIPTIONS[language]="System language"
 GROUP_DESCRIPTIONS[launch]="Application launchers"
 GROUP_DESCRIPTIONS[menu]="Omarchy menu commands"
 GROUP_DESCRIPTIONS[migrate]="Migration runner"

bin/omarchy-language

@@ -0,0 +1,42 @@
+#!/bin/bash
+
+# omarchy:summary=Show or switch the system language between English and Simplified Chinese
+# omarchy:args=[en|zh]
+# omarchy:examples=omarchy language | omarchy language zh
+# omarchy:requires-sudo=true
+
+set -euo pipefail
+
+locale_conf=/etc/locale.conf
+
+if (($# == 0)); then
+  sed -n 's/^LANG=//p' "$locale_conf"
+  exit 0
+fi
+
+case ${1:-} in
+en) lang=en_US.UTF-8 ;;
+zh) lang=zh_CN.UTF-8 ;;
+*)
+  echo "Usage: omarchy-language [en|zh]" >&2
+  exit 1
+  ;;
+esac
+
+sudo sed -i "s/^#\(${lang/./\\.} UTF-8\)/\1/" /etc/locale.gen
+sudo locale-gen
+if grep -q '^LANG=' "$locale_conf"; then
+  sudo sed -i "s/^LANG=.*/LANG=$lang/" "$locale_conf"
+else
+  echo "LANG=$lang" | sudo tee -a "$locale_conf" >/dev/null
+fi
+
+# The language reaches only a new session, so offer one in the new language.
+prompt=$(LANG=$lang omarchy-text "Log out now to switch the language?")
+log_out=$(LANG=$lang omarchy-text "Log out now")
+later=$(LANG=$lang omarchy-text "Later")
+if [[ -t 0 && -t 1 ]] && gum confirm --affirmative "$log_out" --negative "$later" "$prompt" 2>&1; then
+  omarchy-system-logout
+else
+  LANG=$lang omarchy-text "Log back in to switch the language."
+fi

bin/omarchy-region

@@ -50,16 +50,9 @@ else
   omarchy-setup-claude-api --remove
 fi
 
-# The language and the developer mirrors reach only a new session, so offer one in the new language.
-if [[ $1 == "cn" ]]; then
-  prompt="立即注销，切换到中文界面和国内镜像？" log_out="立即注销" later="稍后"
-  reminder="区域已设为中国。重新登录后切换到中文界面和国内镜像。"
-else
-  prompt="Log out now to switch to English and the global mirrors?" log_out="Log out now" later="Later"
-  reminder="Region set to Global. Log back in to switch to English and the global mirrors."
-fi
-if [[ -t 0 && -t 1 ]] && gum confirm --affirmative "$log_out" --negative "$later" "$prompt" 2>&1; then
+# The developer mirrors reach only a new session, so offer one.
+if [[ -t 0 && -t 1 ]] && gum confirm --affirmative "$(omarchy-text "Log out now")" --negative "$(omarchy-text "Later")" "$(omarchy-text "Log out now to switch the developer mirrors?")" 2>&1; then
   omarchy-system-logout
 else
-  echo "$reminder"
+  omarchy-text "Log back in to switch the developer mirrors."
 fi