Switch the region under Setup > Region, and offer China Apps

omarchy region cn|global switches an installed machine: cn upgrades,
trusts ArchLinuxCN through the rendered China config, records the
marker and links the developer mirrors, then refreshes pacman;
global undoes only what Omarchy made. The developer mirrors reach
new sessions only, so a terminal switch offers to log out.

Install > China Apps, shown only in China, installs WeChat, QQ,
Feishu, DingTalk, Tencent Meeting and WPS Office from the AUR and
sets up Tencent Docs, Yuque and Shimo as web apps.

manual/52-china.md describes the China region.

AGENTS.md

@@ -96,6 +96,13 @@ Exceptions are allowed for migration and package-helper scripts where the helper
 - Do not add `aliases` to new menu entries. Aliases are reserved for
   established alternate names users already type, kept for compatibility.
 
+# Region
+
+- `/etc/omarchy/region` holds the region the installer derived from the timezone (`cn`); no file means Global. The profile lives in `default/regions/cn/`, its contract in `docs/regions.md`.
+- `install/config/region.sh` links the `cn` developer mirrors into `/etc` and `/.cargo` and refuses to replace a regular file it did not create. It serves both the install (the marker) and `omarchy region cn|global` (`OMARCHY_REGION`), which also records or removes the marker; Global removes only the links it made.
+- `omarchy-region` prints the region (`Global` or `China`) and switches it. Nothing in `omarchy update` or migrations may change the region.
+- China-only menu rows carry `"when":"[[ \"$(omarchy-region)\" == \"China\" ]]"` on every row, not only the submenu, because search checks each row's own guard. User-facing docs: `manual/52-china.md`.
+
 # Config Structure
 
 - `config/` - default configs copied to `~/.config/`

README.md

@@ -71,6 +71,7 @@ The manual lives in [`manual/`](manual/), which is its authoritative source.
 - [Omarchy on...](manual/49-omarchy-on.md)
 - [Dual Boot Install](manual/50-dual-boot-install.md)
 - [Unattended Installs](manual/51-unattended-installs.md)
+- [China](manual/52-china.md)
 
 ## License
 

bin/omarchy

@@ -73,6 +73,7 @@ GROUP_DESCRIPTIONS[plymouth]="Plymouth boot theme management"
 GROUP_DESCRIPTIONS[power]="Power supply detection"
 GROUP_DESCRIPTIONS[powerprofiles]="Power profile management"
 GROUP_DESCRIPTIONS[refresh]="Reset config to defaults"
+GROUP_DESCRIPTIONS[region]="Region-specific package sources and setup"
 GROUP_DESCRIPTIONS[reinstall]="Reinstall and reset workflows"
 GROUP_DESCRIPTIONS[reminder]="Desktop notification reminders"
 GROUP_DESCRIPTIONS[remove]="Removal workflows"

bin/omarchy-apply-pacman

@@ -53,21 +53,25 @@ else
   trap 'rm -rf "$staging"' EXIT
 fi
 cp "$OMARCHY_PATH/default/pacman/pacman-$channel.conf" "$staging/pacman.conf"
-cp "$OMARCHY_PATH/default/pacman/mirrorlist-$channel" "$staging/mirrorlist"
+if [[ $region == "global" ]]; then
-if [[ $region != "global" ]]; then
+  cp "$OMARCHY_PATH/default/pacman/mirrorlist-$channel" "$staging/mirrorlist"
+else
   profile="$OMARCHY_PATH/default/regions/$region/pacman"
   printf '\n' >> "$staging/pacman.conf"
   cat "$profile/pacman.conf.append" >> "$staging/pacman.conf"
-  cat "$profile/mirrorlist.append" >> "$staging/mirrorlist"
+  # pacman tries servers in order, so the regional mirror leads and the
+  # channel's own mirror stays as the fallback.
+  cat "$profile/mirrorlist-$channel.prepend" "$OMARCHY_PATH/default/pacman/mirrorlist-$channel" > "$staging/mirrorlist"
 fi
-[[ -z $render_dir ]] || exit 0
 
-mkdir -p "$etc/pacman.d"
+if [[ -z $render_dir ]]; then
-for file in pacman.conf pacman.d/mirrorlist; do
+  mkdir -p "$etc/pacman.d"
-  if [[ -e $etc/$file ]]; then
+  for file in pacman.conf pacman.d/mirrorlist; do
-    cp -f "$etc/$file" "$etc/$file.bak"
+    if [[ -e $etc/$file ]]; then
-  fi
+      cp -f "$etc/$file" "$etc/$file.bak"
-done
+    fi
-# Copying over an existing file keeps its owner and mode, as refresh always has.
+  done
-cp -f "$staging/pacman.conf" "$etc/pacman.conf"
+  # Copying over an existing file keeps its owner and mode, as refresh always has.
-cp -f "$staging/mirrorlist" "$etc/pacman.d/mirrorlist"
+  cp -f "$staging/pacman.conf" "$etc/pacman.conf"
+  cp -f "$staging/mirrorlist" "$etc/pacman.d/mirrorlist"
+fi

bin/omarchy-channel-set

@@ -55,10 +55,15 @@ validate_dev_region() {
   [[ -f $region_file ]] && region=$(<"$region_file")
   [[ $region == "global" ]] && return 0
 
-  # The refresh after linking needs a runnable helper and both fragments, not
+  # The refresh after linking needs a runnable helper and every fragment, not
-  # just a directory with the region's name.
+  # just a directory with the region's name: dev refreshes edge, and leaving
-  local profile="$checkout/default/regions/$region/pacman"
+  # dev later refreshes stable or rc with this checkout's tools.
-  if [[ ! -x $checkout/bin/omarchy-apply-pacman || ! -r $profile/pacman.conf.append || ! -r $profile/mirrorlist.append ]]; then
+  local profile="$checkout/default/regions/$region/pacman" fragment supported=true
+  [[ -x $checkout/bin/omarchy-apply-pacman ]] || supported=false
+  for fragment in pacman.conf.append mirrorlist-stable.prepend mirrorlist-rc.prepend mirrorlist-edge.prepend; do
+    [[ -r $profile/$fragment ]] || supported=false
+  done
+  if ! $supported; then
     fail "$checkout does not support the '$region' region, so switching would drop its package repositories. Check out a branch with default/regions/$region, or remove $region_file to use global defaults."
   fi
 }

bin/omarchy-region

@@ -0,0 +1,57 @@
+#!/bin/bash
+
+# omarchy:summary=Show or switch the region this machine is set up for
+# omarchy:args=[global|cn]
+# omarchy:examples=omarchy region | omarchy region cn
+# omarchy:requires-sudo=true
+
+set -euo pipefail
+
+region_file=/etc/omarchy/region
+
+if (($# == 0)); then
+  if [[ ! -e $region_file ]]; then
+    echo "Global"
+  elif [[ $(<"$region_file") == "cn" ]]; then
+    echo "China"
+  else
+    echo "Unknown region in $region_file: $(<"$region_file")" >&2
+    exit 1
+  fi
+  exit 0
+fi
+
+if [[ $1 != "global" && $1 != "cn" ]]; then
+  echo "Usage: omarchy-region [global|cn]" >&2
+  exit 1
+fi
+
+channel=$(omarchy-version-channel)
+if [[ $channel != "stable" && $channel != "rc" && $channel != "edge" ]]; then
+  echo "Cannot tell this machine's package channel ($channel); run omarchy channel set first" >&2
+  exit 1
+fi
+
+if [[ $1 == "cn" ]]; then
+  # Upgrade first: the keyring install below syncs new databases.
+  omarchy-update-pacman -Syu --noconfirm
+  sudo env OMARCHY_REGION=cn OMARCHY_PATH="$OMARCHY_PATH" bash -e "$OMARCHY_PATH/install/config/region.sh"
+  # Trust ArchLinuxCN before the refresh upgrades through it.
+  rendered=$(mktemp -d)
+  trap 'rm -rf "$rendered"' EXIT
+  omarchy-apply-pacman --render "$channel" "$rendered"
+  mapfile -t profile_packages < <(grep -Ev '^[[:space:]]*(#|$)' "$OMARCHY_PATH/default/regions/cn/packages")
+  sudo pacman --config "$rendered/pacman.conf" -Sy --noconfirm --needed "${profile_packages[@]}"
+  sudo pacman-key --populate archlinuxcn
+  omarchy-refresh-pacman "$channel"
+else
+  sudo env OMARCHY_REGION=global OMARCHY_PATH="$OMARCHY_PATH" bash -e "$OMARCHY_PATH/install/config/region.sh"
+  omarchy-refresh-pacman "$channel"
+fi
+
+# The developer mirrors reach only a new session, so offer one.
+if [[ -t 0 && -t 1 ]] && gum confirm --affirmative "Log out now" --negative "Later" "Log out now to switch the developer mirrors?"; then
+  omarchy-system-logout
+else
+  echo "Log back in to switch the developer mirrors."
+fi

default/omarchy/omarchy-menu.jsonc

@@ -173,6 +173,9 @@
   "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 cn'"},
   "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"},
@@ -216,6 +219,16 @@
   "install.tui": {"icon":"","label":"TUI","action":"omarchy-launch-floating-terminal-with-presentation omarchy-tui-install"},
   "install.windows": {"icon":"󰍲","label":"Windows","disabled":"[[ -f $HOME/.local/share/applications/windows-vm.desktop ]]","action":"omarchy-launch-floating-terminal-with-presentation 'omarchy-windows-vm install'"},
   "install.aur": {"icon":"󰣇","label":"AUR","action":"xdg-terminal-exec --app-id=org.omarchy.terminal omarchy-pkg-aur-install"},
+  "install.china": {"icon":"󰓜","label":"China Apps","when":"[[ \"$(omarchy-region)\" == \"China\" ]]"},
+  "install.china.wechat": {"icon":"󰘑","label":"WeChat","when":"[[ \"$(omarchy-region)\" == \"China\" ]]","disabled":"omarchy-pkg-present wechat-universal-bwrap","action":"omarchy-launch-floating-terminal-with-presentation 'omarchy-pkg-aur-add wechat-universal-bwrap'"},
+  "install.china.qq": {"icon":"󰘅","label":"QQ","when":"[[ \"$(omarchy-region)\" == \"China\" ]]","disabled":"omarchy-pkg-present linuxqq","action":"omarchy-launch-floating-terminal-with-presentation 'omarchy-pkg-aur-add linuxqq'"},
+  "install.china.feishu": {"icon":"󱗆","label":"Feishu","when":"[[ \"$(omarchy-region)\" == \"China\" ]]","disabled":"omarchy-pkg-present feishu-bin","action":"omarchy-launch-floating-terminal-with-presentation 'omarchy-pkg-aur-add feishu-bin'"},
+  "install.china.dingtalk": {"icon":"󰭹","label":"DingTalk","when":"[[ \"$(omarchy-region)\" == \"China\" ]]","disabled":"omarchy-pkg-present dingtalk-bin","action":"omarchy-launch-floating-terminal-with-presentation 'omarchy-pkg-aur-add dingtalk-bin'"},
+  "install.china.wemeet": {"icon":"󰕧","label":"Tencent Meeting","when":"[[ \"$(omarchy-region)\" == \"China\" ]]","disabled":"omarchy-pkg-present wemeet-bin","action":"omarchy-launch-floating-terminal-with-presentation 'omarchy-pkg-aur-add wemeet-bin'"},
+  "install.china.wps": {"icon":"󰈬","label":"WPS Office","when":"[[ \"$(omarchy-region)\" == \"China\" ]]","disabled":"omarchy-pkg-present wps-office-cn","action":"omarchy-launch-floating-terminal-with-presentation 'omarchy-pkg-aur-add wps-office-cn'"},
+  "install.china.tencent-docs": {"icon":"󰈙","label":"Tencent Docs","when":"[[ \"$(omarchy-region)\" == \"China\" ]]","disabled":"[[ -f \"$HOME/.local/share/applications/腾讯文档.desktop\" ]]","action":"omarchy-launch-floating-terminal-with-presentation 'omarchy-webapp-install 腾讯文档 https://docs.qq.com \"\"'"},
+  "install.china.yuque": {"icon":"󰠮","label":"Yuque","when":"[[ \"$(omarchy-region)\" == \"China\" ]]","disabled":"[[ -f \"$HOME/.local/share/applications/语雀.desktop\" ]]","action":"omarchy-launch-floating-terminal-with-presentation 'omarchy-webapp-install 语雀 https://www.yuque.com/dashboard \"\"'"},
+  "install.china.shimo": {"icon":"󰈙","label":"Shimo","when":"[[ \"$(omarchy-region)\" == \"China\" ]]","disabled":"[[ -f \"$HOME/.local/share/applications/石墨文档.desktop\" ]]","action":"omarchy-launch-floating-terminal-with-presentation 'omarchy-webapp-install 石墨文档 https://shimo.im/desktop \"\"'"},
   "install.preinstalls": {"icon":"󰏓","label":"Preinstalls","disabled":"[[ ! -f $HOME/.local/state/omarchy/preinstalls-removed ]]","action":"omarchy-launch-floating-terminal-with-presentation omarchy-install-preinstalls"},
   "install.browser.chrome": {"icon":"","label":"Chrome","disabled":"omarchy-pkg-present google-chrome","action":"omarchy-launch-floating-terminal-with-presentation 'omarchy-install-browser chrome'"},
   "install.browser.edge": {"icon":"󰇩","label":"Edge","disabled":"omarchy-pkg-present microsoft-edge-stable-bin","action":"omarchy-launch-floating-terminal-with-presentation 'omarchy-install-browser edge'"},

default/regions/cn/cargo.toml

@@ -0,0 +1,5 @@
+[source.crates-io]
+replace-with = "aliyun"
+
+[source.aliyun]
+registry = "sparse+https://mirrors.aliyun.com/crates.io-index/"

default/regions/cn/environment.conf

@@ -0,0 +1,8 @@
+NPM_CONFIG_REGISTRY=https://registry.npmmirror.com
+PIP_INDEX_URL=https://mirrors.aliyun.com/pypi/simple/
+UV_DEFAULT_INDEX=https://mirrors.aliyun.com/pypi/simple/
+GOPROXY=https://mirrors.aliyun.com/goproxy/,direct
+RUSTUP_DIST_SERVER=https://mirrors.aliyun.com/rustup
+RUSTUP_UPDATE_ROOT=https://mirrors.aliyun.com/rustup/rustup
+BUNDLE_MIRROR__ALL=https://mirrors.aliyun.com/rubygems/
+MAVEN_ARGS=--global-settings /usr/share/omarchy/default/regions/cn/maven-settings.xml

default/regions/cn/gemrc

@@ -0,0 +1,3 @@
+---
+:sources:
+- https://mirrors.aliyun.com/rubygems/

default/regions/cn/maven-settings.xml

@@ -0,0 +1,9 @@
+<settings>
+  <mirrors>
+    <mirror>
+      <id>aliyun</id>
+      <mirrorOf>central</mirrorOf>
+      <url>https://maven.aliyun.com/repository/public</url>
+    </mirror>
+  </mirrors>
+</settings>

default/regions/cn/pacman/mirrorlist-edge.prepend

@@ -0,0 +1 @@
+Server = https://mirror.omarchy.cn/$repo/os/$arch

default/regions/cn/pacman/mirrorlist-rc.prepend

@@ -0,0 +1 @@
+Server = https://rc-mirror.omarchy.cn/$repo/os/$arch

default/regions/cn/pacman/mirrorlist-stable.prepend

@@ -0,0 +1 @@
+Server = https://stable-mirror.omarchy.cn/$repo/os/$arch

default/regions/cn/pacman/mirrorlist.append

@@ -1 +0,0 @@
-Server = https://mirrors.ustc.edu.cn/archlinux/$repo/os/$arch

default/regions/cn/timezones

@@ -0,0 +1,9 @@
+# Installs in these timezones get this region. The installer's timezone list
+# includes tzdata's backward-compatible names, so they are listed too.
+Asia/Shanghai
+Asia/Urumqi
+Asia/Chongqing
+Asia/Chungking
+Asia/Harbin
+Asia/Kashgar
+PRC

docs/regions.md

@@ -1,35 +1,49 @@
-# Regional ISO defaults
+# Regional defaults
 
-Regions customize bootstrap defaults independently of update channels. Country identifiers are lowercase, officially assigned ISO 3166-1 alpha-2 codes. `global` is a reserved value for no country-specific additions. Only implemented profiles are accepted; currently `global` and `cn`.
+Regions customize bootstrap defaults independently of update channels and of the installer's language. Country identifiers are lowercase, officially assigned ISO 3166-1 alpha-2 codes. `global` is a reserved value for no country-specific additions. Only implemented profiles are accepted; currently `global` and `cn`.
 
 ## Runtime configuration
 
-The ISO installer writes the selected region to `/etc/omarchy/region` before target finalization. It is plain text, not executable configuration. A missing file means `global`; an unsupported value is an error.
+The ISO installer writes the region it derived to `/etc/omarchy/region` before target finalization. It is plain text, not executable configuration, owned by root and world-readable (`0644`), because refresh renders as the calling user. A missing file means `global`; an unsupported value is an error.
 
-`omarchy-apply-pacman <stable|rc|edge> [target-root]` restores the selected channel's two pacman templates and appends `default/regions/<region>/pacman/{pacman.conf.append,mirrorlist.append}`. Both files are generated before either live file is replaced. Existing files are backed up with `.bak`. Dev uses the edge pacman channel, as before.
+`omarchy-apply-pacman <stable|rc|edge> [target-root]` restores the selected channel's two pacman templates, appends the region's `pacman.conf.append` to `pacman.conf`, and puts the region's `mirrorlist-<channel>.prepend` ahead of the channel's mirrorlist. Both files are generated before either live file is replaced. Existing files are backed up with `.bak`. Dev uses the edge pacman channel, as before.
 
 Both installation finalization and `omarchy-refresh-pacman` use this command. Explicit refreshes and channel changes restore regional defaults; ordinary updates do not enforce them. The existing `pre-refresh-pacman` user hook runs after regeneration and before the update, so users can maintain overrides there. Switching to the dev channel refuses a checkout that lacks this machine's region profile, because that checkout's own refresh would otherwise drop the regional repositories. Users can edit the files directly or set the region to `global` before a refresh to stop applying regional repository defaults. This does not uninstall packages or rewrite anything in existing home directories.
 
-The China profile keeps the channel's Omarchy Arch mirror first, appends USTC's regular Arch mirror, and adds the USTC ArchLinuxCN community repository. It does not change the `[omarchy]` package repository. USTC's mirror, run by the University of Science and Technology of China, and ArchLinuxCN, a long-standing community repository, are a practical bridge until Omarchy runs its own mirror in China. USTC is not a stable/RC snapshot replica: missing old packages and newer fallback databases remain compatibility risks.
+Refresh renders both files as the calling user and gives root only the finished copies, so the sudo boundary stays command-scoped. That boundary does not defend against other code already running as the same user: such code could change the rendered files while refresh waits for the password, as it could alter that user's own environment in other ways.
 
-## ISO builder contract
+The China profile puts Omarchy's China replica of the channel's Arch mirror first (`stable-mirror.omarchy.cn`, `rc-mirror.omarchy.cn`, or `mirror.omarchy.cn` for edge and dev) and keeps the channel's `.org` mirror as the fallback. pacman tries servers in order and moves to the next one when a download fails, including a 404. After three failed downloads from one server, it skips that server for the rest of the transaction. It also takes the package databases from the first server that answers, without comparing them, so the China replicas must carry complete, current metadata. The profile also adds the ArchLinuxCN community repository from USTC's mirror, run by the University of Science and Technology of China. It does not change the `[omarchy]` package repository. ArchLinuxCN is rolling and built against current Arch, while stable and RC are snapshots, so its packages can need newer libraries than a stable machine has.
 
-The companion `omarchy-iso` repository accepts `--region global|cn`, passes `OMARCHY_REGION` into the build container, and records it in `/root/omarchy_region` on the ISO. Non-global artifact and offline-cache names gain a region suffix. Existing global names remain unchanged.
+## Profile layout
 
-Regional content comes from the same runtime used by the ISO: either the `--local-source` checkout or the downloaded runtime package. A China build against a runtime without regional support fails rather than silently producing a global installation.
+Each profile lives in `default/regions/<code>/`:
 
-- `packages`: additional target packages, one name per line, with blank lines and `#` comments allowed. The builder merges these into the ISO's copy of `omarchy-base.packages`, so they are both included in the offline repository and installed on the target. The source manifest is not modified.
+- `timezones`: the timezones that select this region, one per line, with blank lines and `#` comments allowed. List tzdata's backward-compatible names too, since the installer's timezone list includes them. A timezone may belong to at most one profile.
-- `pacman/`: repository fragments used by the runtime finalizer. The builder also adds the community repository to its writable online config to obtain regional packages; it does not change its Arch channel mirrors.
+- `packages`: additional target packages, in the same format. Every ISO carries every profile's packages in its offline repository; the installer installs them only on targets in that region. A package named `<name>-keyring` is the profile's trust anchor: the builder installs it through Arch's existing trust chain, and a regional target populates the `<name>` keyring.
-- `skel/` (optional): new-user defaults. The ISO installer overlays these onto target `/etc/skel` after the base settings packages and before user creation, including installations that defer user creation until first boot. It never overlays existing home directories.
+- `pacman/`: `pacman.conf.append`, added after the channel's `pacman.conf`, and one `mirrorlist-<channel>.prepend` per channel (`stable`, `rc`, `edge`), placed ahead of the channel's mirrorlist so the regional mirror is tried first.
 
-For China, the builder installs `archlinuxcn-keyring` using the existing Arch trust chain before downloading other regional packages. Signature or keyring failures abort the build; no unverified keyserver trust or online signature bypass is added. The keyring is also installed on the target from the offline package set, then initialized and populated before online repositories are enabled. The ISO's existing offline repository verification policy is unchanged.
+## ISO installer contract
+
+There is one ISO for every region. The companion `omarchy-iso` repository reads the profiles from the runtime it bundles, so a region and its repository defaults can never disagree.
+
+- **Build:** every profile's `packages` go into the offline repository, but not into the base package list. The builder adds each profile's community repository to its writable online config to download them; it does not change its Arch channel mirrors.
+- **Install:** the installer maps the timezone the user picked to a region through the `timezones` files; a timezone no profile lists means `global`. It shows the result on the summary screen. Unattended installs can set the region explicitly instead. For a regional install it installs the profile's packages from the offline repository and writes `/etc/omarchy/region`; the runtime finalizer then applies the fragments.
+- **Deferred installs** have no timezone until first boot, so they are `global` unless the unattended configuration sets a region.
+
+For China, the builder installs `archlinuxcn-keyring` using the existing Arch trust chain before downloading ArchLinuxCN packages. Signature or keyring failures abort the build; no unverified keyserver trust or online signature bypass is added. On a China target the installer installs the keyring from the offline repository, then initializes and populates it before the online repositories are enabled. Global targets never populate ArchLinuxCN's keys. The ISO's existing offline repository verification policy is unchanged.
 
 ## Scope of the China profile
 
-The China profile currently provides repository defaults only. System language (Simplified Chinese), timezone (Asia/Shanghai), and input-method defaults are planned as separate changes on top of this mechanism: `packages` and `skel/` carry them into the ISO, and the installer stages `skel/` before any user exists.
+The China profile provides repository defaults and developer mirrors. Language is a separate installer choice, not part of a region: a Chinese speaker outside China keeps global mirrors, and a China install in English still gets the regional ones.
+
+## Developer mirrors
+
+The `cn` profile also points the common package managers at mirrors inside China: `environment.conf` (npm, PyPI and uv, Go, rustup, Bundler, and Maven through `MAVEN_ARGS`), `cargo.toml` for crates.io, `gemrc` for RubyGems, and `maven-settings.xml`, which Maven reads in place. During installation `install/config/region.sh` links the first three to `/etc/environment.d/90-omarchy-china.conf`, `/.cargo/config.toml` and `/etc/gemrc` when the marker says `cn`. It refuses to replace a regular file it did not create. The environment reaches sessions started after login.
+
+`omarchy region cn|global` (_Setup > Region_) switches an installed machine. `cn` upgrades, installs and trusts the profile's keyring through a rendered China config, records the marker and links the developer mirrors through the same script, then refreshes pacman. `global` removes the marker and only the links that point into the profile, then refreshes. The region also shows _Install > China Apps_.
 
 ## Remaining release validation
 
-Unit tests cover region/channel independence, package-list augmentation, keyring failure handling, pre-user defaults, generated pacman contents, repeat application, and refresh ordering; refresh itself is exercised only inside the sudo-boundary sandbox. They do not establish live mirror availability, real package trust, or successful offline installation. Before distribution, build from matching local checkouts on an x86_64 builder and run the disposable-VM acceptance workflow in `agents/skills/acceptance-tests.md`.
+Unit tests cover region/channel independence, the timezone mapping, generated pacman contents, repeat application, and refresh ordering; refresh itself is exercised only inside the sudo-boundary sandbox. They do not establish live mirror availability, real package trust, or successful offline installation. Before distribution, build from matching local checkouts on an x86_64 builder and run the disposable-VM acceptance workflow in `agents/skills/acceptance-tests.md`.
 
-The China acceptance run must install without network access, boot to a new user, including deferred first-boot user creation, and keep the regional mirrors, repository, marker, and keyring trust through `stable`, `rc`, and `edge` refreshes.
+The acceptance run must install without network access in both directions: a non-China timezone must produce pacman files byte for byte identical to the channel templates, and `Asia/Shanghai` must produce the China profile, boot to a new user, and keep the regional mirrors, repository, marker, and keyring trust through `stable`, `rc`, and `edge` refreshes.

install/config/all.sh

@@ -1,3 +1,4 @@
+run_logged "$OMARCHY_INSTALL/config/region.sh"
 run_logged "$OMARCHY_INSTALL/config/theme-system.sh"
 run_logged "$OMARCHY_INSTALL/config/browser-policy.sh"
 run_logged "$OMARCHY_INSTALL/config/increase-lockout-limit.sh"

install/config/region.sh

@@ -0,0 +1,44 @@
+cn_links=(
+  "environment.conf /etc/environment.d/90-omarchy-china.conf"
+  "cargo.toml /.cargo/config.toml"
+  "gemrc /etc/gemrc"
+)
+
+# The installer writes the marker from the timezone; omarchy-region passes the region it switches to.
+region=global
+if [[ -e /etc/omarchy/region ]]; then
+  region=$(</etc/omarchy/region)
+fi
+region=${OMARCHY_REGION:-$region}
+
+case $region in
+global)
+  rm -f /etc/omarchy/region
+  for link in "${cn_links[@]}"; do
+    read -r _ target <<<"$link"
+    if [[ -L $target && $(readlink "$target") == */default/regions/cn/* ]]; then
+      rm "$target"
+    fi
+  done
+  ;;
+cn)
+  for link in "${cn_links[@]}"; do
+    read -r _ target <<<"$link"
+    if [[ -e $target && ! -L $target ]]; then
+      echo "Refusing to replace $target, which Omarchy did not create" >&2
+      exit 1
+    fi
+  done
+  mkdir -p /etc/omarchy
+  echo cn >/etc/omarchy/region
+  for link in "${cn_links[@]}"; do
+    read -r source target <<<"$link"
+    mkdir -p "${target%/*}"
+    ln -sfn "$OMARCHY_PATH/default/regions/cn/$source" "$target"
+  done
+  ;;
+*)
+  echo "Unknown region: $region" >&2
+  exit 1
+  ;;
+esac

manual/02-getting-started.md

@@ -20,6 +20,10 @@ Now you're ready to Omarchy!
 
 The full-disk encryption won't allow you to enter the password from a Bluetooth keyboard at startup. Just like you can't use a Bluetooth keyboard to enter the BIOS on a PC. You'll need a keyboard that either uses a 2.4ghz dongle or a cable (which is much nicer for latency anyway!). I personally love the [Lofree Flow84](https://www.lofree.co/products/lofree-flow-the-smoothest-mechanical-keyboard)!
 
+### Installing in China
+
+The timezone you pick in the installer decides the region: `Asia/Shanghai` brings Chinese package and developer mirrors and the China apps. See [China](52-china.md).
+
 ### Installing for another owner
 
 If you're setting up a machine for someone else — a family member, a new employee, a buyer — you shouldn't be answering the personal questions on their behalf. Hit `Ctrl + C` on the very first screen of the installer (the keyboard selection), and Omarchy will offer to prepare the machine for another owner instead. The system installs right away, but all the personal setup — keyboard layout, username, password — is deferred until the machine boots for the first time. The drive is still encrypted by default, and the password the new owner picks on that first boot becomes the encryption password too. (A machine you've already been using can be handed over without a reinstall too — see [resetting the computer](48-security.md).)

manual/52-china.md

@@ -0,0 +1,28 @@
+# China
+
+Omarchy works in mainland China without a VPN. The timezone you pick in the installer decides the region: `Asia/Shanghai`, `Asia/Urumqi` and their older names select China; any other timezone is Global. The summary screen shows _Region: cn_ before anything touches the disk.
+
+## What the China region sets up
+
+| Area | China | Global |
+|------|-------|--------|
+| Arch packages | The channel's `.omarchy.cn` mirror first, its `.omarchy.org` mirror behind it, and the ArchLinuxCN repository with its keyring | `.omarchy.org` mirrors |
+| Omarchy packages | `pkgs.omarchy.org` | `pkgs.omarchy.org` |
+| Developer mirrors | npm, PyPI and uv, Go, rustup and crates.io, RubyGems and Bundler, Maven | Upstream registries |
+| Software | _Install > China Apps_ | Hidden |
+
+pacman tries the `.cn` mirror first. If it is unreachable or lacks a package, pacman falls through to `.org`, which works for anyone with their own VPN. The installer carries the China packages on the ISO, so a China install needs no network.
+
+## Developer mirrors
+
+China machines point the common package managers at mirrors inside China. Environment variables in `/etc/environment.d/90-omarchy-china.conf` cover npm, PyPI and uv, Go, rustup, Bundler and Maven; they reach everything started from the desktop after your next login (not SSH or TTY shells), and they take precedence over npm, pip, uv and Go config files, so unset the variable in a shell to opt out. `/.cargo/config.toml` points crates.io at the mirror unless a project's `.cargo/config.toml` says otherwise, and `/etc/gemrc` sets the RubyGems source unless your `~/.gemrc` sets another. Omarchy never replaces one of those two files if it is a regular file you created. Toolchain downloads by mise, such as Node.js or Go themselves, still come from upstream.
+
+## China Apps
+
+_Install > China Apps_ installs WeChat, QQ, Feishu, DingTalk, Tencent Meeting and WPS Office from the AUR, and sets up Tencent Docs, Yuque and Shimo as web apps.
+
+## Switching later
+
+_Setup > Region_, or `omarchy region cn` and `omarchy region global`, switches the region. China runs a full system update, trusts the ArchLinuxCN keyring, records the region, moves pacman to the `.cn` mirrors and links the developer mirrors. Global moves pacman back to `.org`, removes the developer mirrors and hides _Install > China Apps_; apps you installed from it stay. The developer mirrors change at the next login, so the switch offers to log out. `omarchy update` never changes the region.
+
+A machine prepared for another owner installs Global, since its timezone is only set on first boot. Switch it under _Setup > Region_ once it is online.

shell/plugins/menu/MenuModel.js

@@ -398,7 +398,8 @@ var GUARD_READERS = [
   "omarchy-default-browser",
   "omarchy-default-editor",
   "omarchy-default-terminal",
-  "omarchy-dns"
+  "omarchy-dns",
+  "omarchy-region"
 ]
 
 // Package and command presence account for most of what the guards ask, and

test/shell.d/channel-test.sh

@@ -213,7 +213,23 @@ if grep -Eq $'^(link|refresh)\t' "$log_file"; then
   fail "dev refuses an empty region profile before linking or refreshing pacman" "$(cat "$log_file")"
 fi
 mkdir -p "$checkout/default/regions/cn/pacman"
-touch "$checkout/default/regions/cn/pacman/pacman.conf.append" "$checkout/default/regions/cn/pacman/mirrorlist.append"
+cn_fragments=(pacman.conf.append mirrorlist-stable.prepend mirrorlist-rc.prepend mirrorlist-edge.prepend)
+for missing in "${cn_fragments[@]}"; do
+  for fragment in "${cn_fragments[@]}"; do
+    if [[ $fragment == "$missing" ]]; then
+      rm -f "$checkout/default/regions/cn/pacman/$fragment"
+    else
+      touch "$checkout/default/regions/cn/pacman/$fragment"
+    fi
+  done
+  if OMARCHY_TEST_REGION_FILE="$test_tmp/region" run_channel dev >"$test_tmp/region.out" 2>"$test_tmp/region.err"; then
+    fail "dev refuses a region profile without $missing"
+  fi
+  if grep -Eq $'^(link|refresh)\t' "$log_file"; then
+    fail "dev refuses a profile without $missing before linking or refreshing pacman" "$(cat "$log_file")"
+  fi
+done
+touch "${cn_fragments[@]/#/$checkout/default/regions/cn/pacman/}"
 chmod -x "$checkout/bin/omarchy-apply-pacman"
 if OMARCHY_TEST_REGION_FILE="$test_tmp/region" run_channel dev >"$test_tmp/region.out" 2>"$test_tmp/region.err"; then
   fail "dev refuses a checkout whose pacman helper cannot run"
@@ -221,7 +237,7 @@ fi
 if grep -Eq $'^(link|refresh)\t' "$log_file"; then
   fail "dev refuses incomplete region support before linking or refreshing pacman" "$(cat "$log_file")"
 fi
-pass "dev refuses an empty region profile or a helper that cannot run"
+pass "dev refuses a region profile missing any fragment or a helper that cannot run"
 
 chmod +x "$checkout/bin/omarchy-apply-pacman"
 OMARCHY_TEST_REGION_FILE="$test_tmp/region" run_channel dev

test/shell.d/china-apps-test.sh

@@ -0,0 +1,75 @@
+#!/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(`${root}/shell/plugins/menu/MenuModel.js`)
+const items = model.parseMenuJsonc(fs.readFileSync(`${root}/default/omarchy/omarchy-menu.jsonc`, 'utf8'))
+const china = items.filter(item => item.id === 'install.china' || item.id.startsWith('install.china.'))
+const guard = '[[ "$(omarchy-region)" == "China" ]]'
+const fail = message => { console.error(`not ok - ${message}`); process.exit(1) }
+
+const aur = {
+  wechat: 'wechat-universal-bwrap', qq: 'linuxqq', feishu: 'feishu-bin',
+  dingtalk: 'dingtalk-bin', wemeet: 'wemeet-bin', wps: 'wps-office-cn',
+}
+const web = {
+  'tencent-docs': ['腾讯文档', 'https://docs.qq.com'],
+  yuque: ['语雀', 'https://www.yuque.com/dashboard'],
+  shimo: ['石墨文档', 'https://shimo.im/desktop'],
+}
+
+if (china.length !== 1 + Object.keys(aur).length + Object.keys(web).length) fail(`China Apps has exactly the expected entries: ${china.map(i => i.id)}`)
+if (!china.every(item => item.when === guard)) fail('every China Apps entry, including search hits, shows only in China')
+for (const [id, pkg] of Object.entries(aur)) {
+  const item = china.find(i => i.id === `install.china.${id}`)
+  if (!item || item.action !== `omarchy-launch-floating-terminal-with-presentation 'omarchy-pkg-aur-add ${pkg}'` || item.disabled !== `omarchy-pkg-present ${pkg}`)
+    fail(`${id} installs and checks the AUR package ${pkg}`)
+}
+for (const [id, [name, url]] of Object.entries(web)) {
+  const item = china.find(i => i.id === `install.china.${id}`)
+  if (!item || item.action !== `omarchy-launch-floating-terminal-with-presentation 'omarchy-webapp-install ${name} ${url} ""'` || item.disabled !== `[[ -f "$HOME/.local/share/applications/${name}.desktop" ]]`)
+    fail(`${id} installs and checks the ${name} web app`)
+}
+console.log('ok - China Apps lists the AUR packages and web apps, shown only in China')
+JS
+
+aur_names="wechat-universal-bwrap linuxqq feishu-bin dingtalk-bin wemeet-bin wps-office-cn"
+if [[ ${OMARCHY_TEST_NETWORK:-} == "1" ]]; then
+  query=$(printf '&arg[]=%s' $aur_names)
+  found=$(curl -fsSL "https://aur.archlinux.org/rpc/v5/info?${query#&}" | jq -r '.results[].Name' | sort | tr '\n' ' ')
+  [[ $found == "$(printf '%s\n' $aur_names | sort | tr '\n' ' ')" ]] || fail "every China Apps package exists in the AUR" "$found"
+  pass "every China Apps package exists in the AUR"
+else
+  skip "AUR existence check needs OMARCHY_TEST_NETWORK=1"
+fi
+
+test_tmp=$(mktemp -d)
+trap 'rm -rf "$test_tmp"' EXIT
+mkdir -p "$test_tmp/bin" "$test_tmp/home"
+cat >"$test_tmp/bin/curl" <<'SH'
+#!/bin/bash
+while (($#)); do [[ $1 == "-o" ]] && out=$2; shift; done
+[[ -n ${out:-} ]] && printf '\x89PNG\r\n\x1a\n\0\0\0\rIHDR\0\0\0\x01\0\0\0\x01\x08\x06\0\0\0\x1f\x15\xc4\x89' >"$out"
+exit 0
+SH
+printf '#!/bin/bash\necho "the web app wizard opened" >&2\nexit 1\n' >"$test_tmp/bin/gum"
+chmod +x "$test_tmp/bin/curl" "$test_tmp/bin/gum"
+
+grep -o "omarchy-launch-floating-terminal-with-presentation 'omarchy-webapp-install [^']*'" "$ROOT/default/omarchy/omarchy-menu.jsonc" |
+  sed -e "s/^[^']*'//" -e "s/'$//" -e 's/\\"/"/g' >"$test_tmp/actions"
+(($(wc -l <"$test_tmp/actions") == 3)) || fail "the menu has three China web app actions"
+while read -r action; do
+  HOME="$test_tmp/home" PATH="$test_tmp/bin:$ROOT/bin:$PATH" bash -c "$action" >/dev/null ||
+    fail "the menu action installs its web app: $action"
+done <"$test_tmp/actions"
+for app in 腾讯文档 语雀 石墨文档; do
+  [[ -f $test_tmp/home/.local/share/applications/$app.desktop ]] || fail "$app gets a launcher"
+done
+pass "each China web app action creates its launcher without the wizard"

test/shell.d/menu-test.sh

@@ -284,13 +284,22 @@ 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(`== \"${item.label}\"`) && !item.when)
+    && defaultById['setup.region.global'].action.includes('omarchy-region global')
+    && defaultById['setup.region.china'].action.includes('omarchy-region cn'),
+  'menu offers Global and China under Setup > Region'
+)
 // Software you already have keeps its place in Install, dimmed rather than
 // dropped, so the list reads as a catalog of what Omarchy can install.
 // Chromium Account is the sole Install row with anything left to hide for, so
 // any other `when:` here is a row that went back to vanishing once installed.
 assertDeepEqual(
   defaultItems
-    .filter(item => item.id.startsWith('install.') && item.action && item.when)
+    // China Apps rows hide by region, not because the software is there.
+    .filter(item => item.id.startsWith('install.') && item.action && item.when && item.when !== '[[ "$(omarchy-region)" == "China" ]]')
     .map(item => item.id),
   ['install.service.chromium-account'],
   'menu never hides an Install row because the software is already there'

test/shell.d/region-pacman-test.sh

@@ -27,12 +27,12 @@ pass "refresh keeps existing config file modes"
 printf 'cn\n' > "$TARGET_ROOT/etc/omarchy/region"
 for channel in stable rc edge; do
   case "$channel" in
-    stable) host=stable-mirror.omarchy.org ;;
+    stable) host=stable-mirror.omarchy ;;
-    rc) host=rc-mirror.omarchy.org ;;
+    rc) host=rc-mirror.omarchy ;;
-    edge) host=mirror.omarchy.org ;;
+    edge) host=mirror.omarchy ;;
   esac
   apply "$channel"
-  expected=$(printf 'Server = https://%s/$repo/os/$arch\nServer = https://mirrors.ustc.edu.cn/archlinux/$repo/os/$arch' "$host")
+  expected=$(printf 'Server = https://%s.cn/$repo/os/$arch\nServer = https://%s.org/$repo/os/$arch' "$host" "$host")
   [[ $(<"$TARGET_ROOT/etc/pacman.d/mirrorlist") == "$expected" ]] || fail "$channel mirror order and variables"
   {
     cat "$ROOT/default/pacman/pacman-$channel.conf"
@@ -43,7 +43,7 @@ for channel in stable rc edge; do
   cmp "$TARGET_ROOT/etc/pacman.conf.bak" "$TARGET_ROOT/etc/pacman.conf"
   cmp "$TARGET_ROOT/etc/pacman.d/mirrorlist.bak" "$TARGET_ROOT/etc/pacman.d/mirrorlist"
 done
-pass "China keeps each channel first, appends only CN defaults, and is idempotent"
+pass "China puts its channel mirror first, keeps the global one as fallback, and is idempotent"
 
 cp "$TARGET_ROOT/etc/pacman.conf" "$scratch/before.conf"
 cp "$TARGET_ROOT/etc/pacman.d/mirrorlist" "$scratch/before.mirrors"
@@ -75,8 +75,8 @@ mkdir -p "$scratch/rendered"
 "$ROOT/bin/omarchy-apply-pacman" --render rc "$scratch/rendered" "$TARGET_ROOT"
 rg -qxF 'Server = https://pkgs.omarchy.org/rc/$arch' "$scratch/rendered/pacman.conf"
 rg -qxF '[archlinuxcn]' "$scratch/rendered/pacman.conf"
-[[ $(<"$scratch/rendered/mirrorlist") == $'Server = https://rc-mirror.omarchy.org/$repo/os/$arch\nServer = https://mirrors.ustc.edu.cn/archlinux/$repo/os/$arch' ]] ||
+[[ $(<"$scratch/rendered/mirrorlist") == $'Server = https://rc-mirror.omarchy.cn/$repo/os/$arch\nServer = https://rc-mirror.omarchy.org/$repo/os/$arch' ]] ||
-  fail "render keeps the channel mirror first"
+  fail "render puts the regional channel mirror first"
 cmp "$scratch/before.conf" "$TARGET_ROOT/etc/pacman.conf"
 pass "render builds the regional channel files without touching the target"
 
@@ -91,8 +91,8 @@ cmp "$ROOT/default/pacman/pacman-stable.conf" "$TARGET_ROOT/etc/pacman.conf"
 cmp "$ROOT/default/pacman/mirrorlist-stable" "$TARGET_ROOT/etc/pacman.d/mirrorlist"
 pass "users can opt out of regional repository defaults"
 
-# The shipped China profile is repository scaffolding only. Locale, timezone,
+# The shipped China profile is repository defaults only. Language, locale, and
-# and input defaults are separate changes built on the same mechanism.
+# input methods follow the installer's language choice, not the region.
 python3 - <<'PY'
 import os
 from pathlib import Path
@@ -103,3 +103,39 @@ assert packages == {"archlinuxcn-keyring"}, packages
 assert not (region / "skel").exists()
 PY
 pass "China profile adds only its repository keyring"
+
+# The installer derives the region from the chosen timezone, so every profile
+# needs a mapping, and no timezone may select two regions.
+python3 - <<'PY'
+import os
+from pathlib import Path
+
+zoneinfo = Path("/usr/share/zoneinfo")
+owners = {}
+for profile in sorted((Path(os.environ["ROOT"]) / "default/regions").iterdir()):
+    lines = (profile / "timezones").read_text().splitlines()
+    zones = [line.strip() for line in lines if line.strip() and not line.startswith("#")]
+    assert zones, f"{profile.name} maps no timezones"
+    for zone in zones:
+        assert zone not in owners, f"{zone} maps to {owners[zone]} and {profile.name}"
+        owners[zone] = profile.name
+        if zoneinfo.is_dir():
+            assert (zoneinfo / zone).is_file(), f"{profile.name} lists unknown timezone {zone}"
+
+# The installer offers tzdata's backward-compatible names too, so China
+# covers every name that links to its two zones and nothing else.
+# Without tzdata.zi (minimal containers) only the canonical zones can be
+# checked, so completeness is enforced where the host has the link table.
+china = {zone for zone, region in owners.items() if region == "cn"}
+expected = {"Asia/Shanghai", "Asia/Urumqi"}
+tzdata = zoneinfo / "tzdata.zi"
+if tzdata.is_file():
+    for line in tzdata.read_text().splitlines():
+        fields = line.split()
+        if len(fields) == 3 and fields[0] == "L" and fields[1] in {"Asia/Shanghai", "Asia/Urumqi"}:
+            expected.add(fields[2])
+    assert china == expected, (china, expected)
+else:
+    assert expected <= china, (china, expected)
+PY
+pass "region profiles map each timezone to at most one region"

test/shell.d/region-refresh-boundary-test.sh

@@ -7,7 +7,7 @@ source "$SHELL_TEST_DIR/fixtures/sudo-boundary-test.sh"
 copy_boundary_file bin/omarchy-refresh-pacman
 copy_boundary_file bin/omarchy-apply-pacman
 for file in default/pacman/pacman-rc.conf default/pacman/mirrorlist-rc \
-  default/regions/cn/pacman/pacman.conf.append default/regions/cn/pacman/mirrorlist.append; do
+  default/regions/cn/pacman/pacman.conf.append default/regions/cn/pacman/mirrorlist-rc.prepend; do
   copy_boundary_file "$file"
 done
 
@@ -63,7 +63,7 @@ PY
   printf '\n'
   cat "$ROOT/default/regions/cn/pacman/pacman.conf.append"
 } >"$boundary_tmp/expected-pacman.conf"
-cat "$ROOT/default/pacman/mirrorlist-rc" "$ROOT/default/regions/cn/pacman/mirrorlist.append" >"$boundary_tmp/expected-mirrorlist"
+cat "$ROOT/default/regions/cn/pacman/mirrorlist-rc.prepend" "$ROOT/default/pacman/mirrorlist-rc" >"$boundary_tmp/expected-mirrorlist"
 cmp -s "$boundary_tmp/expected-pacman.conf" "$SUDO_TEST_CAPTURE/etc/pacman.conf" ||
   fail "root installs the rendered China pacman.conf" "$(diff "$boundary_tmp/expected-pacman.conf" "$SUDO_TEST_CAPTURE/etc/pacman.conf" 2>&1)"
 cmp -s "$boundary_tmp/expected-mirrorlist" "$SUDO_TEST_CAPTURE/etc/pacman.d/mirrorlist" ||

test/shell.d/region-switch-test.sh

@@ -0,0 +1,76 @@
+#!/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/regions" "$test_tmp/bin" "$test_tmp/home"
+cp -r "$ROOT/default/regions/cn" "$sandbox/default/regions/"
+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 omarchy-refresh-pacman omarchy-system-logout pacman-key pacman omarchy-apply-pacman; do
+  printf '#!/bin/bash\necho "%s $*" >>"%s"\n' "$command" "$calls" >"$test_tmp/bin/$command"
+done
+printf '#!/bin/bash\necho "omarchy-update-pacman $*" >>"%s"\n[[ -z ${STUB_UPDATE_FAIL:-} ]]\n' "$calls" >"$test_tmp/bin/omarchy-update-pacman"
+printf '#!/bin/bash\necho "${STUB_CHANNEL:-stable}"\n' >"$test_tmp/bin/omarchy-version-channel"
+printf '#!/bin/bash\n[[ $1 == env ]] && shift\nexec env "$@"\n' >"$test_tmp/bin/sudo"
+printf '#!/bin/bash\necho "gum $*" >>"%s"\nexit "${GUM_ANSWER:-1}"\n' "$calls" >"$test_tmp/bin/gum"
+chmod +x "$test_tmp/bin"/*
+mkdir -p "$test_tmp/tmp"
+export PATH="$test_tmp/bin:$sandbox/bin:$PATH" OMARCHY_PATH="$sandbox" HOME="$test_tmp/home" TMPDIR="$test_tmp/tmp"
+switch_calls() { sed "s|$test_tmp/tmp/[^/ ]*|RENDERED|g" "$calls"; }
+
+omarchy-region cn >/dev/null
+[[ $(omarchy-region) == "China" && $(<"$root/etc/omarchy/region") == "cn" ]] ||
+  fail "switching to China records cn"
+[[ $(switch_calls) == $'omarchy-update-pacman -Syu --noconfirm\nomarchy-apply-pacman --render stable RENDERED\npacman --config RENDERED/pacman.conf -Sy --noconfirm --needed archlinuxcn-keyring\npacman-key --populate archlinuxcn\nomarchy-refresh-pacman stable' ]] ||
+  fail "China upgrades, trusts ArchLinuxCN through the rendered cn config, then refreshes" "$(switch_calls)"
+[[ -z $(ls -A "$test_tmp/tmp") ]] || fail "the rendered config is removed"
+pass "switching to China trusts ArchLinuxCN before the refresh upgrades through it"
+
+: >"$calls"
+STUB_CHANNEL=edge omarchy-region cn >/dev/null
+grep -qx 'omarchy-refresh-pacman edge' "$calls" || fail "the refresh keeps the machine's channel" "$(<"$calls")"
+pass "switching to China again keeps the channel"
+
+: >"$calls"
+omarchy-region global >/dev/null
+[[ $(omarchy-region) == "Global" && ! -e $root/etc/omarchy/region ]] ||
+  fail "switching to Global removes the region"
+[[ $(<"$calls") == 'omarchy-refresh-pacman stable' ]] ||
+  fail "Global refreshes pacman back to the channel defaults" "$(<"$calls")"
+pass "switching to Global restores the channel's pacman defaults"
+
+if output=$(omarchy-region mars 2>&1); then
+  fail "an unknown region is refused" "$output"
+fi
+if output=$(STUB_CHANNEL="stable / edge" omarchy-region cn 2>&1); then
+  fail "a mixed channel is refused" "$output"
+fi
+[[ $(omarchy-region) == "Global" ]] || fail "a refused switch changes nothing"
+pass "an unknown region or an unclear channel is refused"
+
+: >"$calls"
+if output=$(STUB_UPDATE_FAIL=1 omarchy-region cn 2>&1); then
+  fail "switching to China fails when the upgrade fails" "$output"
+fi
+[[ $(omarchy-region) == "Global" ]] && ! grep -q '^omarchy-refresh-pacman' "$calls" ||
+  fail "a failed switch to China leaves the region Global and pacman untouched" "$(<"$calls")"
+pass "a failed switch to China leaves the machine Global"
+
+grep -q '^gum' "$calls" && fail "a switch without a terminal asks nothing" "$(<"$calls")"
+: >"$calls"
+output=$(GUM_ANSWER=1 script -qec "omarchy-region cn" /dev/null)
+[[ $output == *"Log back in to switch the developer mirrors."* ]] && ! grep -q '^omarchy-system-logout' "$calls" ||
+  fail "declining the logout leaves a reminder and the session" "$output"
+: >"$calls"
+GUM_ANSWER=0 script -qec "omarchy-region global" /dev/null >/dev/null
+grep -qxF 'gum confirm --affirmative Log out now --negative Later Log out now to switch the developer mirrors?' "$calls" &&
+  grep -qx 'omarchy-system-logout ' "$calls" || fail "a terminal switch offers to log out and logs out on yes" "$(<"$calls")"
+pass "a switch in a terminal offers to log out"

test/shell.d/region-test.sh

@@ -0,0 +1,75 @@
+#!/bin/bash
+
+set -euo pipefail
+
+source "$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)/base-test.sh"
+
+test_tmp=$(mktemp -d)
+trap 'rm -rf "$test_tmp"' EXIT
+
+region_setup="$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 "$root/etc/omarchy"
+
+bash -e "$region_setup"
+[[ -z $(find "$root" -type l) ]] || fail "no marker links nothing"
+pass "no marker installs Global"
+
+echo cn >"$root/etc/omarchy/region"
+bash -e "$region_setup"
+for link in "environment.conf etc/environment.d/90-omarchy-china.conf" "cargo.toml .cargo/config.toml" "gemrc etc/gemrc"; do
+  read -r source target <<<"$link"
+  [[ $(readlink "$root/$target") == "$ROOT/default/regions/cn/$source" ]] || fail "China links /$target to the shipped $source"
+done
+bash -e "$region_setup"
+pass "the cn marker links the developer mirror drop-ins, again without error"
+
+rm "$root/etc/gemrc"
+echo ":sources: []" >"$root/etc/gemrc"
+if output=$(bash -e "$region_setup" 2>&1); then
+  fail "China refuses to replace an admin's /etc/gemrc" "$output"
+fi
+[[ $output == "Refusing to replace $root/etc/gemrc, which Omarchy did not create" && $(<"$root/etc/gemrc") == ":sources: []" ]] ||
+  fail "China names the file it refuses to replace and leaves it" "$output"
+rm "$root/etc/gemrc"
+pass "region setup never replaces mirror config Omarchy did not create"
+
+echo mars >"$root/etc/omarchy/region"
+if output=$(bash -e "$region_setup" 2>&1); then
+  fail "an unknown region fails" "$output"
+fi
+[[ $output == "Unknown region: mars" ]] || fail "region setup names the unknown region" "$output"
+pass "region setup rejects an unknown region"
+
+echo cn >"$root/etc/omarchy/region"
+bash -e "$region_setup"
+OMARCHY_REGION=global bash -e "$region_setup"
+[[ ! -e $root/etc/omarchy/region && -z $(find "$root" -type l) ]] || fail "Global removes the marker and the developer mirror links"
+ln -s /usr/share/somewhere/gemrc "$root/etc/gemrc"
+OMARCHY_REGION=global bash -e "$region_setup"
+[[ -L $root/etc/gemrc ]] || fail "Global keeps a gemrc link Omarchy did not create"
+rm "$root/etc/gemrc"
+pass "switching to Global removes only what Omarchy linked"
+
+OMARCHY_REGION=cn bash -e "$region_setup"
+[[ $(<"$root/etc/omarchy/region") == "cn" && $(readlink "$root/etc/gemrc") == "$ROOT/default/regions/cn/gemrc" ]] ||
+  fail "switching to China records cn and links the drop-ins"
+pass "switching to China records cn and links the drop-ins"
+
+region_bin="$test_tmp/omarchy-region"
+sed "s|/etc/omarchy/region|$root/etc/omarchy/region|" "$ROOT/bin/omarchy-region" >"$region_bin"
+chmod +x "$region_bin"
+[[ $("$region_bin") == "China" ]] || fail "the cn marker reads as China"
+rm "$root/etc/omarchy/region"
+[[ $("$region_bin") == "Global" ]] || fail "no marker reads as Global"
+echo mars >"$root/etc/omarchy/region"
+if output=$("$region_bin" 2>&1); then
+  fail "an unknown marker fails" "$output"
+fi
+[[ $output == "Unknown region in $root/etc/omarchy/region: mars" ]] || fail "the reader names the file and value" "$output"
+pass "omarchy region reads Global, China, and fails on anything else"
+
+grep -qx 'run_logged "$OMARCHY_INSTALL/config/region.sh"' "$ROOT/install/config/all.sh" || fail "the install runs region setup"
+pass "the install runs region setup"