diff --git a/bin/omarchy-region b/bin/omarchy-region
index fad6bf33..f3006f40 100755
--- a/bin/omarchy-region
+++ b/bin/omarchy-region
@@ -1,16 +1,51 @@
 #!/bin/bash
 
-# omarchy:summary=Show the region this machine is set up for
+# omarchy:summary=Show or switch the region this machine is set up for
+# omarchy:args=[global|china]
+# omarchy:examples=omarchy region | omarchy region china
+# omarchy:requires-sudo=true
 
 set -euo pipefail
 
 region_file=/etc/omarchy/region
 
-if [[ ! -e $region_file ]]; then
-  echo "Global"
-elif [[ $(<"$region_file") == "china" ]]; then
-  echo "China"
-else
-  echo "Unknown region in $region_file: $(<"$region_file")" >&2
+if (($# == 0)); then
+  if [[ ! -e $region_file ]]; then
+    echo "Global"
+  elif [[ $(<"$region_file") == "china" ]]; then
+    echo "China"
+  else
+    echo "Unknown region in $region_file: $(<"$region_file")" >&2
+    exit 1
+  fi
+  exit 0
+fi
+
+if [[ $1 != "global" && $1 != "china" ]]; then
+  echo "Usage: omarchy-region [global|china]" >&2
   exit 1
 fi
+
+pacman_files=(/etc/pacman.conf /etc/pacman.d/mirrorlist)
+
+if [[ $1 == "china" ]]; then
+  for file in "${pacman_files[@]}"; do
+    if ! grep -q '^Server = https://[a-z-]*\.omarchy\.cn/' "$file"; then
+      sudo sed -i -f "$OMARCHY_PATH/default/region/china/pacman.sed" "$file"
+    fi
+  done
+  echo "Package mirrors -> .cn first, .org after"
+  sudo pacman -Sy
+  sudo env OMARCHY_REGION=china OMARCHY_PATH="$OMARCHY_PATH" bash -e "$OMARCHY_PATH/install/config/region.sh"
+  if [[ ! -f $HOME/.local/share/fcitx5/rime/rime_ice.schema.yaml ]]; then
+    rime-ice-installer --yes
+  fi
+else
+  sudo sed -i '/^Server = https:\/\/[a-z-]*\.omarchy\.cn\//d' "${pacman_files[@]}"
+  echo "Package mirrors -> .org only"
+  sudo pacman -Sy
+  sudo env OMARCHY_REGION=global OMARCHY_PATH="$OMARCHY_PATH" bash -e "$OMARCHY_PATH/install/config/region.sh"
+  omarchy-setup-claude-api --remove
+fi
+
+echo "Region set to ${1^}. Log out and back in to switch the language and developer mirrors."
diff --git a/default/omarchy/omarchy-menu.jsonc b/default/omarchy/omarchy-menu.jsonc
index d2ba79b7..bbe9a1b2 100644
--- a/default/omarchy/omarchy-menu.jsonc
+++ b/default/omarchy/omarchy-menu.jsonc
@@ -176,6 +176,9 @@
   "setup.default.editor.helix": {"icon":"","label":"Helix","checked":"[[ \"$(omarchy-default-editor)\" == \"helix\" ]]","action":"omarchy-default-editor helix"},
   "setup.default.editor.vim": {"icon":"","label":"Vim","checked":"[[ \"$(omarchy-default-editor)\" == \"vim\" ]]","action":"omarchy-default-editor vim"},
   "setup.default.editor.emacs": {"icon":" ","label":"Emacs","checked":"[[ \"$(omarchy-default-editor)\" == \"emacs\" ]]","action":"omarchy-default-editor emacs"},
+  "setup.region": {"icon":"󰇧","label":"Region"},
+  "setup.region.global": {"icon":"󰖟","label":"Global","checked":"[[ \"$(omarchy-region)\" == \"Global\" ]]","action":"omarchy-launch-floating-terminal-with-presentation 'omarchy-region global'"},
+  "setup.region.china": {"icon":"󰈻","label":"China","checked":"[[ \"$(omarchy-region)\" == \"China\" ]]","action":"omarchy-launch-floating-terminal-with-presentation 'omarchy-region china'"},
   "setup.plugin": {"icon":"󰐱","label":"Plugins","aliases":["plugin","plugins"]},
   "setup.plugin.enable": {"icon":"󰄬","label":"Enable Plugin","action":"omarchy-menu-plugin enable"},
   "setup.plugin.disable": {"icon":"󰅖","label":"Disable Plugin","action":"omarchy-menu-plugin disable"},
diff --git a/default/omarchy/omarchy-menu.zh-cn.jsonc b/default/omarchy/omarchy-menu.zh-cn.jsonc
new file mode 100644
index 00000000..4e459bba
--- /dev/null
+++ b/default/omarchy/omarchy-menu.zh-cn.jsonc
@@ -0,0 +1,180 @@
+// Chinese menu labels, overlaid on omarchy-menu.jsonc when LANG is zh_CN.
+{
+  "apps": {"label":"应用"},
+  "learn": {"label":"学习"},
+  "trigger": {"label":"触发"},
+  "style": {"label":"风格"},
+  "setup": {"label":"设置"},
+  "install": {"label":"安装"},
+  "remove": {"label":"移除"},
+  "update": {"label":"更新"},
+  "about": {"label":"关于"},
+  "system": {"label":"系统"},
+  "system.screensaver": {"label":"屏保"},
+  "system.lock": {"label":"锁屏"},
+  "system.suspend": {"label":"睡眠"},
+  "system.hibernate": {"label":"休眠"},
+  "system.logout": {"label":"注销"},
+  "system.reboot": {"label":"重启"},
+  "system.shutdown": {"label":"关机"},
+  "learn.keybindings": {"label":"快捷键"},
+  "learn.omarchy": {"label":"Omarchy 手册"},
+  "learn.community": {"label":"社区"},
+  "trigger.emoji": {"label":"表情"},
+  "trigger.reminder": {"label":"提醒"},
+  "trigger.capture": {"label":"截取"},
+  "trigger.capture.screenshot": {"label":"截图"},
+  "trigger.capture.screenrecord.stop": {"label":"停止录屏"},
+  "trigger.capture.screenrecord": {"label":"录屏"},
+  "trigger.capture.text": {"label":"OCR 取字"},
+  "trigger.capture.qr": {"label":"二维码"},
+  "trigger.capture.color": {"label":"取色"},
+  "trigger.capture.screenrecord.no-audio": {"label":"无音频"},
+  "trigger.capture.screenrecord.desktop-audio": {"label":"含桌面音频"},
+  "trigger.capture.screenrecord.microphone": {"label":"含桌面与麦克风音频"},
+  "trigger.capture.screenrecord.webcam": {"label":"含桌面、麦克风与摄像头"},
+  "trigger.transcode": {"label":"转码"},
+  "trigger.share": {"label":"分享"},
+  "trigger.toggle": {"label":"开关"},
+  "trigger.hardware": {"label":"硬件"},
+  "trigger.tests": {"label":"测速"},
+  "trigger.hardware.laptop-display": {"label":"笔记本屏幕"},
+  "trigger.hardware.mirror-display": {"label":"镜像显示"},
+  "trigger.hardware.hybrid-gpu": {"label":"混合显卡"},
+  "trigger.hardware.touchpad": {"label":"触控板"},
+  "trigger.hardware.touchpad-haptics": {"label":"触控板振动"},
+  "trigger.hardware.touchpad-haptics.low": {"label":"低"},
+  "trigger.hardware.touchpad-haptics.mid": {"label":"中"},
+  "trigger.hardware.touchpad-haptics.high": {"label":"高"},
+  "trigger.hardware.touchscreen": {"label":"触摸屏"},
+  "trigger.reminder.set": {"label":"设一个提醒"},
+  "trigger.reminder.show": {"label":"查看全部"},
+  "trigger.reminder.clear": {"label":"清除全部"},
+  "trigger.share.clipboard": {"label":"剪贴板"},
+  "trigger.share.file": {"label":"文件"},
+  "trigger.share.folder": {"label":"文件夹"},
+  "trigger.share.receive": {"label":"接收"},
+  "trigger.toggle.idle-lock": {"label":"保持唤醒"},
+  "trigger.toggle.notifications": {"label":"通知"},
+  "trigger.toggle.crash-capture": {"label":"崩溃捕获"},
+  "trigger.toggle.screensaver": {"label":"屏保"},
+  "trigger.toggle.nightlight": {"label":"夜间模式"},
+  "trigger.toggle.top-bar": {"label":"菜单栏"},
+  "trigger.toggle.battery-percentage": {"label":"电量百分比"},
+  "trigger.toggle.workspace-layout": {"label":"工作区布局"},
+  "trigger.toggle.window-gaps": {"label":"窗口间距"},
+  "trigger.toggle.one-window-ratio": {"label":"单窗口比例"},
+  "trigger.tests.network-speedtest": {"label":"网络测速"},
+  "trigger.tests.disk-speedtest": {"label":"磁盘测速"},
+  "style.theme": {"label":"主题"},
+  "style.background": {"label":"壁纸"},
+  "style.unlock": {"label":"解锁画面"},
+  "style.font": {"label":"字体"},
+  "style.bar": {"label":"菜单栏"},
+  "style.bar.position": {"label":"位置"},
+  "style.bar.transparency": {"label":"透明"},
+  "style.screensaver": {"label":"屏保"},
+  "style.about": {"label":"关于"},
+  "style.bar.position.top": {"label":"顶部"},
+  "style.bar.position.bottom": {"label":"底部"},
+  "style.bar.position.left": {"label":"左侧"},
+  "style.bar.position.right": {"label":"右侧"},
+  "style.about.text": {"label":"编辑文字"},
+  "style.about.image": {"label":"取自图片"},
+  "style.about.default": {"label":"恢复默认"},
+  "style.screensaver.text": {"label":"编辑文字"},
+  "style.screensaver.image": {"label":"取自图片"},
+  "style.screensaver.default": {"label":"恢复默认"},
+  "setup.monitors": {"label":"显示器"},
+  "setup.keybindings": {"label":"快捷键"},
+  "setup.input": {"label":"输入设备"},
+  "setup.network": {"label":"网络"},
+  "setup.network.dns.custom": {"label":"自定义"},
+  "setup.network.qr": {"label":"二维码"},
+  "setup.default": {"label":"默认程序"},
+  "setup.default.agent": {"title":"默认 Agent"},
+  "setup.default.browser": {"label":"浏览器","title":"默认浏览器"},
+  "setup.default.terminal": {"label":"终端","title":"默认终端"},
+  "setup.default.editor": {"label":"编辑器","title":"默认编辑器"},
+  "setup.plugin": {"label":"插件"},
+  "setup.plugin.enable": {"label":"启用插件"},
+  "setup.plugin.disable": {"label":"停用插件"},
+  "setup.plugin.add": {"label":"添加插件"},
+  "setup.plugin.clone": {"label":"克隆插件"},
+  "setup.plugin.remove": {"label":"移除插件"},
+  "setup.security": {"label":"安全"},
+  "setup.config": {"label":"配置"},
+  "setup.security.fingerprint": {"label":"指纹"},
+  "setup.security.passwordless-sudo": {"label":"免密 sudo"},
+  "setup.security.sudoless-docker": {"label":"免 sudo Docker"},
+  "setup.direct-boot": {"label":"直接启动"},
+  "setup.reset": {"label":"恢复出厂设置"},
+  "install.package": {"label":"软件包"},
+  "install.service": {"label":"服务"},
+  "install.development": {"label":"开发环境"},
+  "install.editor": {"label":"编辑器"},
+  "install.style": {"label":"风格"},
+  "install.style.theme": {"label":"主题"},
+  "install.style.background": {"label":"壁纸"},
+  "install.style.font": {"label":"字体"},
+  "install.gaming": {"label":"游戏"},
+  "install.browser": {"label":"浏览器"},
+  "install.webapp": {"label":"网页应用"},
+  "install.terminal": {"label":"终端"},
+  "install.preinstalls": {"label":"预装应用"},
+  "install.service.chromium-account": {"label":"Chromium 账号"},
+  "install.ai.dictation": {"label":"语音听写"},
+  "install.gaming.xbox-cloud": {"label":"Xbox 云游戏"},
+  "install.gaming.xbox-controllers": {"label":"Xbox 手柄"},
+  "install.gaming.retro-launcher": {"label":"RetroArch 启动器"},
+  "install.development.docker-dbs": {"label":"Docker 数据库"},
+  "remove.package": {"label":"软件包"},
+  "remove.ai": {"title":"移除"},
+  "remove.service": {"label":"服务","title":"移除"},
+  "remove.development": {"label":"开发环境","title":"移除"},
+  "remove.theme": {"label":"主题"},
+  "remove.gaming": {"label":"游戏","title":"移除"},
+  "remove.browser": {"label":"浏览器","title":"移除"},
+  "remove.webapp": {"label":"网页应用"},
+  "remove.preinstalls": {"label":"预装应用"},
+  "remove.security": {"label":"安全","title":"移除"},
+  "remove.security.fingerprint": {"label":"指纹"},
+  "remove.security.sudoless-docker": {"label":"免 sudo Docker"},
+  "remove.ai.dictation": {"label":"语音听写"},
+  "remove.gaming.xbox-cloud": {"label":"Xbox 云游戏"},
+  "remove.gaming.xbox-controllers": {"label":"Xbox 手柄 (󰂯)"},
+  "remove.development.javascript": {"title":"移除"},
+  "remove.development.php": {"title":"移除"},
+  "remove.development.elixir": {"title":"移除"},
+  "update.channel": {"label":"通道"},
+  "update.config": {"label":"配置","title":"重置为默认"},
+  "update.themes": {"label":"附加主题"},
+  "update.process": {"label":"进程","title":"重启"},
+  "update.hardware": {"label":"硬件","title":"重启"},
+  "update.firmware": {"label":"固件"},
+  "update.password": {"label":"密码"},
+  "update.timezone": {"label":"时区"},
+  "update.time": {"label":"时间"},
+  "update.hardware.audio": {"label":"音频"},
+  "update.hardware.bluetooth": {"label":"蓝牙"},
+  "update.hardware.trackpad": {"label":"触控板"},
+  "update.password.drive": {"label":"磁盘加密"},
+  "update.password.user": {"label":"用户"},
+  "trigger.toggle.animations": {"label":"动画"},
+  "trigger.toggle.theme-sync": {"label":"Herdr 主题同步"},
+  "setup.region": {"label":"地区"},
+  "setup.region.global": {"label":"全球"},
+  "setup.region.china": {"label":"中国"},
+  "install.china": {"label":"国内应用"},
+  "install.china.wechat": {"label":"微信"},
+  "install.china.feishu": {"label":"飞书"},
+  "install.china.dingtalk": {"label":"钉钉"},
+  "install.china.wemeet": {"label":"腾讯会议"},
+  "install.china.tencent-docs": {"label":"腾讯文档"},
+  "install.china.yuque": {"label":"语雀"},
+  "install.china.shimo": {"label":"石墨文档"},
+  "update.channel.stable": {"label":"稳定版"},
+  "update.channel.rc": {"label":"候选版"},
+  "update.channel.edge": {"label":"尝鲜版"},
+  "update.channel.dev": {"label":"开发版"},
+}
diff --git a/docs/menu.md b/docs/menu.md
index 480d128c..fc3593a2 100644
--- a/docs/menu.md
+++ b/docs/menu.md
@@ -56,6 +56,8 @@ or re-icon a row without re-declaring its action, and an overridden entry
 keeps its original position in the list. New ids append. A `root` entry is
 injected if neither file declares one.
 
+When `LANG` starts with `zh_CN`, `default/omarchy/omarchy-menu.zh-cn.jsonc` is merged between the defaults and the user extension. It only retitles shipped ids, so a user extension still wins, and the language follows `/etc/locale.conf` instead of any file `omarchy update` rewrites.
+
 The sample extension at `config/omarchy/extensions/omarchy-menu.jsonc`
 (refreshed into `~/.config/`) documents the format in its header and ships
 only comments, so the default state adds nothing.
diff --git a/install/config/region.sh b/install/config/region.sh
index 65bfefec..b5ddeb99 100644
--- a/install/config/region.sh
+++ b/install/config/region.sh
@@ -7,6 +7,7 @@ china_links=(
 case ${OMARCHY_REGION:-global} in
 global)
   rm -f /etc/omarchy/region
+  sed -i 's/^LANG=zh_CN\.UTF-8$/LANG=en_US.UTF-8/' /etc/locale.conf
   for link in "${china_links[@]}"; do
     read -r _ target <<<"$link"
     if [[ -L $target && $(readlink "$target") == */default/region/china/* ]]; then
@@ -27,6 +28,13 @@ china)
     ln -sfn "$OMARCHY_PATH/default/region/china/$source" "$target"
   done
   omarchy-pkg-add fcitx5-configtool fcitx5-rime librime opencc rime-ice-installer
+  sed -i 's/^#\(zh_CN\.UTF-8 UTF-8\)/\1/' /etc/locale.gen
+  locale-gen
+  if grep -q '^LANG=' /etc/locale.conf; then
+    sed -i 's/^LANG=.*/LANG=zh_CN.UTF-8/' /etc/locale.conf
+  else
+    echo LANG=zh_CN.UTF-8 >>/etc/locale.conf
+  fi
   ;;
 *)
   echo "Unknown OMARCHY_REGION: $OMARCHY_REGION" >&2
diff --git a/plans/omarchycn.md b/plans/omarchycn.md
index 017e5ee7..b8d01fb5 100644
--- a/plans/omarchycn.md
+++ b/plans/omarchycn.md
@@ -20,7 +20,7 @@ Progress source of truth for the `omarchycn` branches of `omarchy`, `omarchy-iso
 - [x] T4 CJK fontconfig fix (PRD 4): rebuild PR 9693 on the current base
 - [x] T5 AI (PRD 5): Dim and Kimi Code for every region (rebuild PR 9694), Claude Code third-party provider setup shown only in China
 - [x] T6 Developer mirrors (PRD 6): npm, PyPI/uv, Go, rustup, crates.io, RubyGems, Maven via system drop-ins under `default/region/china/`
-- [ ] T7 China software (PRD 7): Install menu entry shown only in China
+- [x] T7 China software (PRD 7): Install menu entry shown only in China
 - [ ] T8 Region switching and Chinese UI (PRD 8): `omarchy-region china|global`, Setup > Region, locale, Chinese menu overlay chosen by `LANG`
 - [ ] T9 Logo (PRD 9): stock Omarchy logo everywhere
 - [ ] T10 Docs: `AGENTS.md`, manual
diff --git a/shell/plugins/menu/Menu.qml b/shell/plugins/menu/Menu.qml
index 1625375e..5f614c64 100644
--- a/shell/plugins/menu/Menu.qml
+++ b/shell/plugins/menu/Menu.qml
@@ -37,6 +37,7 @@ Item {
 
   function refresh() {
     defaultMenuFile.reload()
+    localeMenuFile.reload()
     userMenuFile.reload()
     return "ok"
   }
@@ -49,7 +50,9 @@ Item {
   // path doesn't have to shell out to bash + jq on every open.
   property string defaultMenuPath: omarchyPath + "/default/omarchy/omarchy-menu.jsonc"
   property string userMenuPath: Quickshell.env("HOME") + "/.config/omarchy/extensions/omarchy-menu.jsonc"
+  property string localeMenuPath: (Quickshell.env("LANG") || "").startsWith("zh_CN") ? omarchyPath + "/default/omarchy/omarchy-menu.zh-cn.jsonc" : ""
   property var defaultMenuItems: []
+  property var localeMenuItems: []
   property var userMenuItems: []
   property bool opened: false
   property string mode: "menu"
@@ -247,7 +250,7 @@ Item {
   // on a per-key basis (so the user can tweak label/icon/action without
   // re-declaring the whole row).
   function rebuildItemsFromSources() {
-    var mergedMenu = MenuModel.mergeMenuSources(root.defaultMenuItems, root.userMenuItems)
+    var mergedMenu = MenuModel.mergeMenuSources(root.defaultMenuItems, root.localeMenuItems.concat(root.userMenuItems))
     root.providerRevision += 1
     root.providersLoaded = ({})
     root.providerQueue = []
@@ -974,6 +977,16 @@ Item {
     onFileChanged: reload()
   }
 
+  FileView {
+    id: localeMenuFile
+    path: root.localeMenuPath
+    watchChanges: true
+    printErrors: false
+    onLoaded: { root.localeMenuItems = root.parseMenuJsonc(text()); root.rebuildItemsFromSources() }
+    onLoadFailed: { root.localeMenuItems = []; root.rebuildItemsFromSources() }
+    onFileChanged: reload()
+  }
+
   FileView {
     id: userMenuFile
     path: root.userMenuPath
diff --git a/shell/plugins/menu/MenuModel.js b/shell/plugins/menu/MenuModel.js
index b5b22ac4..db871242 100644
--- a/shell/plugins/menu/MenuModel.js
+++ b/shell/plugins/menu/MenuModel.js
@@ -58,7 +58,9 @@ function parseMenuJsonc(raw) {
   for (var id in source) {
     var entry = source[id]
     if (!entry || typeof entry !== "object" || Array.isArray(entry)) continue
-    out.push(normalizeItem(id, entry))
+    var item = normalizeItem(id, entry)
+    item.declared = Object.keys(entry)
+    out.push(item)
   }
   return out
 }
@@ -74,11 +76,24 @@ function mergeMenuSources(defaultItems, userItems) {
       var entry = src[i]
       if (!entry || !entry.id) continue
       if (!nextItems[entry.id]) nextOrder.push(entry.id)
-      var prior = nextItems[entry.id] || {}
+      var prior = nextItems[entry.id]
       var merged = {}
-      for (var k in prior) merged[k] = prior[k]
-      for (var k2 in entry) merged[k2] = entry[k2]
+      // An override replaces only the fields its file declared.
+      if (prior && entry.declared) {
+        for (var k in prior) merged[k] = prior[k]
+        for (var d = 0; d < entry.declared.length; d++) {
+          var key = entry.declared[d]
+          if (key in entry) merged[key] = entry[key]
+        }
+        if (entry.declared.indexOf("action") >= 0 || entry.declared.indexOf("target") >= 0)
+          merged.kind = merged.action ? "action" : (merged.target ? "link" : "menu")
+      } else {
+        prior = prior || {}
+        for (var k1 in prior) merged[k1] = prior[k1]
+        for (var k2 in entry) merged[k2] = entry[k2]
+      }
       merged.id = entry.id
+      delete merged.declared
       nextItems[entry.id] = merged
     }
   }
diff --git a/test/shell.d/menu-locale-test.sh b/test/shell.d/menu-locale-test.sh
new file mode 100755
index 00000000..a5cbc653
--- /dev/null
+++ b/test/shell.d/menu-locale-test.sh
@@ -0,0 +1,44 @@
+#!/bin/bash
+
+set -euo pipefail
+
+source "$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)/base-test.sh"
+
+require_command node
+
+node - "$ROOT" <<'JS'
+const fs = require('fs')
+const root = process.argv[2]
+const model = require(`${root}/shell/plugins/menu/MenuModel.js`)
+const read = name => model.parseMenuJsonc(fs.readFileSync(`${root}/default/omarchy/${name}`, 'utf8'))
+const fail = message => { console.error(`not ok - ${message}`); process.exit(1) }
+
+const defaults = read('omarchy-menu.jsonc')
+const chinese = read('omarchy-menu.zh-cn.jsonc')
+const byId = Object.fromEntries(defaults.map(item => [item.id, item]))
+
+const unknown = chinese.filter(item => !byId[item.id]).map(item => item.id)
+if (unknown.length) fail(`every Chinese label names a shipped menu id: ${unknown}`)
+const extra = chinese.filter(item => item.declared.some(key => key !== 'label' && key !== 'title')).map(item => item.id)
+if (extra.length) fail(`the Chinese overlay only retitles rows: ${extra}`)
+console.log('ok - the Chinese overlay only retitles shipped menu rows')
+
+const user = model.parseMenuJsonc('{"system.lock": {"label": "Mine"}}')
+const merged = model.mergeMenuSources(defaults, chinese.concat(user)).items
+for (const item of defaults) {
+  const result = merged[item.id]
+  const zh = chinese.find(entry => entry.id === item.id)
+  for (const key of ['action', 'when', 'checked', 'disabled', 'target', 'provider', 'kind', 'icon', 'parent']) {
+    if (JSON.stringify(result[key]) !== JSON.stringify(item[key])) fail(`${item.id} keeps its ${key} under the Chinese overlay`)
+  }
+  if (item.id !== 'system.lock' && zh && zh.declared.includes('label') && result.label !== zh.label) fail(`${item.id} shows its Chinese label`)
+}
+if (merged['system.lock'].label !== 'Mine') fail('a user extension still overrides the Chinese label')
+if (merged['system.reboot'].label !== '重启' || merged['install.china.wechat'].label !== '微信') fail('Chinese labels reach the merged menu')
+console.log('ok - Chinese labels replace only the label, and user extensions still win')
+JS
+
+grep -qF 'root.localeMenuItems.concat(root.userMenuItems)' "$ROOT/shell/plugins/menu/Menu.qml" &&
+  grep -qF 'startsWith("zh_CN") ? omarchyPath + "/default/omarchy/omarchy-menu.zh-cn.jsonc"' "$ROOT/shell/plugins/menu/Menu.qml" ||
+  fail "the menu loads the Chinese overlay under zh_CN, beneath the user extension"
+pass "the menu loads the Chinese overlay under zh_CN, beneath the user extension"
diff --git a/test/shell.d/menu-test.sh b/test/shell.d/menu-test.sh
index c87b1a1e..f2bcbd6d 100644
--- a/test/shell.d/menu-test.sh
+++ b/test/shell.d/menu-test.sh
@@ -62,9 +62,10 @@ assertDeepEqual(
     aliases: ['theme'],
     when: '',
     checked: '',
-    disabled: ''
+    disabled: '',
+    declared: ['label', 'aliases', 'description', 'action']
   },
-  'menu normalizes parsed items'
+  'menu normalizes parsed items and records what the file declared'
 )
 
 const user = [
@@ -76,6 +77,16 @@ assertEqual(merged.items['style.theme'].label, 'Theme picker', 'menu user entrie
 assertEqual(merged.items['style.theme'].order, 2, 'menu preserves original order on override')
 assert(merged.items.root, 'menu injects root when merging sources')
 
+const retitled = menu.mergeMenuSources(
+  menu.parseMenuJsonc('{"apps": {"icon":"A","label":"Apps","provider":"apps"}, "apps.go": {"label":"Go","action":"run-go"}}'),
+  menu.parseMenuJsonc('{"apps": {"label":"应用"}, "apps.go": {"label":"出发"}}')
+)
+assertEqual(retitled.items['apps'].provider, 'apps', 'menu keeps the provider when a user entry only retitles')
+assertEqual(retitled.items['apps'].icon, 'A', 'menu keeps the icon when a user entry only retitles')
+assertEqual(retitled.items['apps.go'].action, 'run-go', 'menu keeps the action when a user entry only retitles')
+assertEqual(retitled.items['apps.go'].kind, 'action', 'menu keeps the kind when a user entry only retitles')
+assertEqual(retitled.items['apps.go'].label, '出发', 'menu applies the user retitle')
+
 assertEqual(menu.slugify('Power Saver!'), 'power-saver', 'menu slugifies provider rows')
 assertEqual(menu.pathFor(merged.items, 'style.theme'), 'Style › Theme picker', 'menu builds item paths')
 assertEqual(menu.parentPathFor(merged.items, 'style.theme'), 'Style', 'menu builds parent paths')
@@ -286,6 +297,14 @@ assert(
   'menu always exposes every supported browser, terminal, and editor under Defaults'
 )
 assert(!defaultById['install.ai.crush'], 'menu removes Crush from Install > AI')
+const regionEntries = defaultItems.filter(item => item.parent === 'setup.region')
+assert(
+  regionEntries.map(item => item.label).join('\0') === 'Global\0China'
+    && regionEntries.every(item => item.checked.includes(`== \"${item.label}\"`) && !item.when)
+    && defaultById['setup.region.global'].action.includes('omarchy-region global')
+    && defaultById['setup.region.china'].action.includes('omarchy-region china'),
+  'menu offers Global and China under Setup > Region'
+)
 // Software you already have keeps its place in Install, dimmed rather than
 // dropped, so the list reads as a catalog of what Omarchy can install.
 // Chromium Account is the sole Install row with anything left to hide for, so
diff --git a/test/shell.d/region-switch-test.sh b/test/shell.d/region-switch-test.sh
new file mode 100755
index 00000000..a58f4c38
--- /dev/null
+++ b/test/shell.d/region-switch-test.sh
@@ -0,0 +1,60 @@
+#!/bin/bash
+
+set -euo pipefail
+
+source "$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)/base-test.sh"
+
+test_tmp=$(mktemp -d)
+trap 'rm -rf "$test_tmp"' EXIT
+
+root="$test_tmp/root" sandbox="$test_tmp/omarchy" calls="$test_tmp/calls"
+mkdir -p "$root/etc/pacman.d" "$sandbox/bin" "$sandbox/install/config" "$sandbox/default/region" "$test_tmp/bin" "$test_tmp/home"
+cp -r "$ROOT/default/region/china" "$sandbox/default/region/"
+rewrite() { sed -e "s|/etc/|$root/etc/|g" -e "s| /\\.cargo/| $root/.cargo/|g" "$1" >"$2"; chmod +x "$2"; }
+rewrite "$ROOT/install/config/region.sh" "$sandbox/install/config/region.sh"
+rewrite "$ROOT/bin/omarchy-region" "$sandbox/bin/omarchy-region"
+
+for command in pacman omarchy-pkg-add locale-gen rime-ice-installer omarchy-setup-claude-api; do
+  printf '#!/bin/bash\necho "%s $*" >>"%s"\n' "$command" "$calls" >"$test_tmp/bin/$command"
+done
+printf '#!/bin/bash\n[[ $1 == env ]] && shift\nexec env "$@"\n' >"$test_tmp/bin/sudo"
+chmod +x "$test_tmp/bin"/*
+export PATH="$test_tmp/bin:$sandbox/bin:$PATH" OMARCHY_PATH="$sandbox" HOME="$test_tmp/home"
+
+cp "$ROOT/default/pacman/pacman-stable.conf" "$root/etc/pacman.conf"
+cp "$ROOT/default/pacman/mirrorlist-stable" "$root/etc/pacman.d/mirrorlist"
+printf '#zh_CN.UTF-8 UTF-8\nen_US.UTF-8 UTF-8\n' >"$root/etc/locale.gen"
+printf 'LANG=en_US.UTF-8\n' >"$root/etc/locale.conf"
+
+china_conf=$(sed -f "$ROOT/default/region/china/pacman.sed" "$ROOT/default/pacman/pacman-stable.conf")
+china_mirrors=$(sed -f "$ROOT/default/region/china/pacman.sed" "$ROOT/default/pacman/mirrorlist-stable")
+
+omarchy-region china >/dev/null
+[[ $(<"$root/etc/pacman.conf") == "$china_conf" && $(<"$root/etc/pacman.d/mirrorlist") == "$china_mirrors" ]] ||
+  fail "switching to China lists the .cn mirrors first"
+[[ $(omarchy-region) == "China" && $(<"$root/etc/locale.conf") == "LANG=zh_CN.UTF-8" ]] || fail "switching to China records it and sets the language"
+[[ $(<"$calls") == $'pacman -Sy\nomarchy-pkg-add fcitx5-configtool fcitx5-rime librime opencc rime-ice-installer\nlocale-gen \nrime-ice-installer --yes' ]] ||
+  fail "China syncs the .cn databases before installing Rime, then sets Rime Ice up" "$(<"$calls")"
+pass "switching to China sets mirrors, language and Rime Ice"
+
+: >"$calls"
+mkdir -p "$HOME/.local/share/fcitx5/rime" && touch "$HOME/.local/share/fcitx5/rime/rime_ice.schema.yaml"
+omarchy-region china >/dev/null
+[[ $(<"$root/etc/pacman.conf") == "$china_conf" && $(<"$root/etc/pacman.d/mirrorlist") == "$china_mirrors" ]] ||
+  fail "switching to China twice adds no second .cn line"
+grep -q '^rime-ice-installer' "$calls" && fail "an existing Rime Ice setup is not redone"
+pass "switching to China again changes nothing it already did"
+
+: >"$calls"
+omarchy-region global >/dev/null
+[[ $(<"$root/etc/pacman.conf") == "$(<"$ROOT/default/pacman/pacman-stable.conf")" && $(<"$root/etc/pacman.d/mirrorlist") == "$(<"$ROOT/default/pacman/mirrorlist-stable")" ]] ||
+  fail "switching to Global drops exactly the .cn mirrors"
+[[ $(omarchy-region) == "Global" && $(<"$root/etc/locale.conf") == "LANG=en_US.UTF-8" ]] || fail "switching to Global records it and restores English"
+[[ $(<"$calls") == $'pacman -Sy\nomarchy-setup-claude-api --remove' ]] || fail "Global removes the Claude Code third-party API and keeps Rime" "$(<"$calls")"
+[[ -f $HOME/.local/share/fcitx5/rime/rime_ice.schema.yaml ]] || fail "Global keeps the input method"
+pass "switching to Global restores mirrors and language, keeps Rime, removes the Claude API setup"
+
+if output=$(omarchy-region mars 2>&1); then
+  fail "an unknown region is refused" "$output"
+fi
+pass "an unknown region is refused"
diff --git a/test/shell.d/region-test.sh b/test/shell.d/region-test.sh
index e251ae94..1b4f785f 100755
--- a/test/shell.d/region-test.sh
+++ b/test/shell.d/region-test.sh
@@ -58,7 +58,7 @@ pass "an unknown region fails and names the file and value"
 stub_bin="$test_tmp/bin"
 calls="$test_tmp/calls"
 mkdir -p "$stub_bin"
-for command in omarchy-pkg-add rime-ice-installer; do
+for command in omarchy-pkg-add rime-ice-installer locale-gen; do
   printf '#!/bin/bash\necho "%s $*" >>"%s"\n' "$command" "$calls" >"$stub_bin/$command"
 done
 printf '#!/bin/bash\necho "$STUB_REGION"\n' >"$stub_bin/omarchy-region"
@@ -69,12 +69,17 @@ region_setup="$test_tmp/region.sh"
 root="$test_tmp/root"
 sed -e "s|/etc/|$root/etc/|g" -e "s| /\.cargo/| $root/.cargo/|g" "$ROOT/install/config/region.sh" >"$region_setup"
 export OMARCHY_PATH="$ROOT"
+mkdir -p "$root/etc"
+printf '#zh_CN.UTF-8 UTF-8\nen_US.UTF-8 UTF-8\n' >"$root/etc/locale.gen"
+printf 'LANG=en_US.UTF-8\nLC_TIME=en_DK.UTF-8\n' >"$root/etc/locale.conf"
 
 : >"$calls"
 OMARCHY_REGION=china bash -e "$region_setup"
 [[ $(<"$root/etc/omarchy/region") == "china" ]] || fail "install records the China region"
-[[ $(<"$calls") == "omarchy-pkg-add fcitx5-configtool fcitx5-rime librime opencc rime-ice-installer" ]] ||
-  fail "China installs the Rime input method packages" "$(<"$calls")"
+[[ $(<"$calls") == $'omarchy-pkg-add fcitx5-configtool fcitx5-rime librime opencc rime-ice-installer\nlocale-gen ' ]] ||
+  fail "China installs the Rime input method packages and generates the Chinese locale" "$(<"$calls")"
+[[ $(<"$root/etc/locale.gen") == $'zh_CN.UTF-8 UTF-8\nen_US.UTF-8 UTF-8' ]] || fail "China enables zh_CN in locale.gen"
+[[ $(<"$root/etc/locale.conf") == $'LANG=zh_CN.UTF-8\nLC_TIME=en_DK.UTF-8' ]] || fail "China sets LANG and keeps other locale settings" "$(<"$root/etc/locale.conf")"
 for package in fcitx5-configtool fcitx5-rime librime opencc rime-ice-installer; do
   grep -qx "$package" "$ROOT/install/omarchy-other.packages" || fail "the ISO mirror carries $package"
 done
@@ -90,6 +95,12 @@ pass "China links the developer mirror drop-ins"
 OMARCHY_REGION=global bash -e "$region_setup"
 [[ ! -e $root/etc/omarchy/region ]] || fail "install records Global by leaving no region file"
 [[ ! -s $calls ]] || fail "Global installs no input method packages" "$(<"$calls")"
+[[ $(<"$root/etc/locale.conf") == $'LANG=en_US.UTF-8\nLC_TIME=en_DK.UTF-8' ]] || fail "Global turns a Chinese LANG back to English" "$(<"$root/etc/locale.conf")"
+printf 'LANG=de_DE.UTF-8\n' >"$root/etc/locale.conf"
+OMARCHY_REGION=global bash -e "$region_setup"
+[[ $(<"$root/etc/locale.conf") == "LANG=de_DE.UTF-8" ]] || fail "Global leaves a language China did not set"
+printf 'LANG=en_US.UTF-8\n' >"$root/etc/locale.conf"
+pass "the region sets the language and Global only undoes Chinese"
 [[ ! -e $root/etc/environment.d/90-omarchy-china.conf && ! -e $root/.cargo/config.toml && ! -e $root/etc/gemrc ]] ||
   fail "Global removes the developer mirror drop-ins"
 pass "Global removes the developer mirror drop-ins"