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.

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-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