diff --git a/README.md b/README.md
index 94ac1d4f9ac776b1912aea20223a9e8858a07e3e..f6969459174c3321a6267eeba10ff08ad43e5bb8 100644
--- a/README.md
+++ b/README.md
@@ -33,6 +33,16 @@ too.
 [Install / Self-hosting](https://ntfy.sh/docs/install/) |
 [Building](https://ntfy.sh/docs/develop/)
 
+## Chat
+You can directly contact me **[on Discord](https://discord.gg/cT7ECsZj9w)** or [on Matrix](https://matrix.to/#/#ntfy:matrix.org) 
+(bridged from Discord), or via the [GitHub issues](https://github.com/binwiederhier/ntfy/issues), or find more contact information
+[on my website](https://heckel.io/about).
+
+## Announcements / beta testers
+For announcements of new releases and cutting-edge beta versions, please subscribe to the [ntfy.sh/announcements](https://ntfy.sh/announcements) 
+topic. If you'd like to test the iOS app, join [TestFlight](https://testflight.apple.com/join/P1fFnAm9). For Android betas,
+join Discord/Matrix (I'll eventually make a testing channel in Google Play).
+
 ## Contributing
 I welcome any and all contributions. Just create a PR or an issue. To contribute code, check out 
 the [build instructions](https://ntfy.sh/docs/develop/) for the server and the Android app.
@@ -43,11 +53,6 @@ Or, if you'd like to help translate 🇩🇪 🇺🇸 🇧🇬, you can start im
 <img src="https://hosted.weblate.org/widgets/ntfy/-/multi-blue.svg" alt="Translation status" />
 </a>
 
-## Contact me
-You can directly contact me **[on Discord](https://discord.gg/cT7ECsZj9w)** or [on Matrix](https://matrix.to/#/#ntfy:matrix.org) 
-(bridged from Discord), or via the [GitHub issues](https://github.com/binwiederhier/ntfy/issues), or find more contact information
-[on my website](https://heckel.io/about).
-
 ## License
 Made with ❤️ by [Philipp C. Heckel](https://heckel.io).   
 The project is dual licensed under the [Apache License 2.0](LICENSE) and the [GPLv2 License](LICENSE.GPLv2).
diff --git a/docs/config.md b/docs/config.md
index 15b547bb4ffcacfa553703ac1e65b91d841effd5..9b0aa07c2393af6f21b2cdbb747a5cf1b6e4fe25 100644
--- a/docs/config.md
+++ b/docs/config.md
@@ -643,10 +643,18 @@ In case you're curious, here's an example of the entire flow:
 - In the iOS app, you subscribe to `https://ntfy.example.com/mytopic`
 - The app subscribes to the Firebase topic `6de73be8dfb7d69e...` (the SHA256 of the topic URL)
 - When you publish a message to `https://ntfy.example.com/mytopic`, your ntfy server will publish a 
-  poll request to `https://ntfy.sh/6de73be8dfb7d69e...` (passing the message ID in the `X-Poll-ID` header)
-- The ntfy.sh server publishes the message to Firebase, which forwards it to APNS, which forwards it to your iOS device
+  poll request to `https://ntfy.sh/6de73be8dfb7d69e...`. The request from your server to the upstream server 
+  contains only the message ID (in the `X-Poll-ID` header), and the SHA256 checksum of the topic URL (as upstream topic).
+- The ntfy.sh server publishes the poll request message to Firebase, which forwards it to APNS, which forwards it to your iOS device
 - Your iOS device receives the poll request, and fetches the actual message from your server, and then displays it
 
+Here's an example of what the self-hosted server forwards to the upstream server. The request is equivalent to this curl:
+
+```
+curl -X POST -H "X-Poll-ID: s4PdJozxM8na" https://ntfy.sh/6de73be8dfb7d69e32fb2c00c23fe7adbd8b5504406e3068c273aa24cef4055b
+{"id":"4HsClFEuCIcs","time":1654087955,"event":"poll_request","topic":"6de73be8dfb7d69e32fb2c00c23fe7adbd8b5504406e3068c273aa24cef4055b","message":"New message","poll_id":"s4PdJozxM8na"}
+```
+
 ## Rate limiting
 !!! info
     Be aware that if you are running ntfy behind a proxy, you must set the `behind-proxy` flag. 
diff --git a/docs/install.md b/docs/install.md
index 6c18d56fc3535a47605d14a922f4a6d58a0d545c..231b430681dff1705c465c557a4d5c56bca40d4c 100644
--- a/docs/install.md
+++ b/docs/install.md
@@ -176,6 +176,12 @@ cd ntfysh-bin
 makepkg -si
 ```
 
+## NixOS / Nix
+ntfy is packaged in nixpkgs as `ntfy-sh`. It can be installed by adding the package name to the configuration file and calling `nixos-rebuild`. Alternatively, the following command can be used to install ntfy in the current user environment:
+```
+nix-env -iA ntfy-sh
+```
+
 ## macOS
 The [ntfy CLI](subscribe/cli.md) (`ntfy publish` and `ntfy subscribe` only) is supported on macOS as well. 
 To install, please download the tarball, extract it and place it somewhere in your `PATH` (e.g. `/usr/local/bin/ntfy`). 
diff --git a/docs/releases.md b/docs/releases.md
index e4f78db9f1c431495cdb3bf9b57a537a803fbaa5..1a3fa4d6064c7ced119c8a762cf24107d7dce7ee 100644
--- a/docs/releases.md
+++ b/docs/releases.md
@@ -25,6 +25,12 @@ and the [ntfy Android app](https://github.com/binwiederhier/ntfy-android/release
 **Documentation**:
 
 * [Examples](examples.md) for [Home Assistant](https://www.home-assistant.io/) ([#282](https://github.com/binwiederhier/ntfy/pull/282), thanks to [@poblabs](https://github.com/poblabs))
+* Install instructions for [NixOS/Nix](https://ntfy.sh/docs/install/#nixos-nix) ([#282](https://github.com/binwiederhier/ntfy/pull/282), thanks to [@arjan-s](https://github.com/arjan-s))
+* Clarify `poll_request` wording for [iOS push notifications](https://ntfy.sh/docs/config/#ios-instant-notifications) ([#300](https://github.com/binwiederhier/ntfy/issues/300), thanks to [@prabirshrestha](https://github.com/prabirshrestha) for reporting)
+
+**Additional translations:**
+
+* Chinese/Simplified (thanks to [@yufei.im](https://hosted.weblate.org/user/yufei.im/))
 
 -->
 
diff --git a/server/server_firebase_test.go b/server/server_firebase_test.go
index 8e08b0d6f859e2e013c05303e213d434975794c2..b29cf3af4dbbbf195e95d9a6431613bb589e7826 100644
--- a/server/server_firebase_test.go
+++ b/server/server_firebase_test.go
@@ -8,6 +8,7 @@ import (
 	"github.com/stretchr/testify/require"
 	"heckel.io/ntfy/auth"
 	"strings"
+	"sync"
 	"testing"
 )
 
@@ -29,6 +30,7 @@ func (t testAuther) Authorize(_ *auth.User, _ string, _ auth.Permission) error {
 type testFirebaseSender struct {
 	allowed  int
 	messages []*messaging.Message
+	mu       sync.Mutex
 }
 
 func newTestFirebaseSender(allowed int) *testFirebaseSender {
@@ -37,7 +39,10 @@ func newTestFirebaseSender(allowed int) *testFirebaseSender {
 		messages: make([]*messaging.Message, 0),
 	}
 }
+
 func (s *testFirebaseSender) Send(m *messaging.Message) error {
+	s.mu.Lock()
+	defer s.mu.Unlock()
 	if len(s.messages)+1 > s.allowed {
 		return errFirebaseQuotaExceeded
 	}
@@ -45,6 +50,12 @@ func (s *testFirebaseSender) Send(m *messaging.Message) error {
 	return nil
 }
 
+func (s *testFirebaseSender) Messages() []*messaging.Message {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	return append(make([]*messaging.Message, 0), s.messages...)
+}
+
 func TestToFirebaseMessage_Keepalive(t *testing.T) {
 	m := newKeepaliveMessage("mytopic")
 	fbm, err := toFirebaseMessage(m, nil)
@@ -311,15 +322,15 @@ func TestToFirebaseSender_Abuse(t *testing.T) {
 	visitor := newVisitor(newTestConfig(t), newMemTestCache(t), "1.2.3.4")
 
 	require.Nil(t, client.Send(visitor, &message{Topic: "mytopic"}))
-	require.Equal(t, 1, len(sender.messages))
+	require.Equal(t, 1, len(sender.Messages()))
 
 	require.Nil(t, client.Send(visitor, &message{Topic: "mytopic"}))
-	require.Equal(t, 2, len(sender.messages))
+	require.Equal(t, 2, len(sender.Messages()))
 
 	require.Equal(t, errFirebaseQuotaExceeded, client.Send(visitor, &message{Topic: "mytopic"}))
-	require.Equal(t, 2, len(sender.messages))
+	require.Equal(t, 2, len(sender.Messages()))
 
 	sender.messages = make([]*messaging.Message, 0) // Reset to test that time limit is working
 	require.Equal(t, errFirebaseQuotaExceeded, client.Send(visitor, &message{Topic: "mytopic"}))
-	require.Equal(t, 0, len(sender.messages))
+	require.Equal(t, 0, len(sender.Messages()))
 }
diff --git a/server/server_test.go b/server/server_test.go
index d05075fdcfa89848ffcfb45509b538e6647c819e..ce63f272ad1e163f3c7874687bf311af0dc83f09 100644
--- a/server/server_test.go
+++ b/server/server_test.go
@@ -63,10 +63,10 @@ func TestServer_PublishWithFirebase(t *testing.T) {
 	msg1 := toMessage(t, response.Body.String())
 	require.NotEmpty(t, msg1.ID)
 	require.Equal(t, "my first message", msg1.Message)
-	require.Equal(t, 1, len(sender.messages))
-	require.Equal(t, "my first message", sender.messages[0].Data["message"])
-	require.Equal(t, "my first message", sender.messages[0].APNS.Payload.Aps.Alert.Body)
-	require.Equal(t, "my first message", sender.messages[0].APNS.Payload.CustomData["message"])
+	require.Equal(t, 1, len(sender.Messages()))
+	require.Equal(t, "my first message", sender.Messages()[0].Data["message"])
+	require.Equal(t, "my first message", sender.Messages()[0].APNS.Payload.Aps.Alert.Body)
+	require.Equal(t, "my first message", sender.Messages()[0].APNS.Payload.CustomData["message"])
 }
 
 func TestServer_SubscribeOpenAndKeepalive(t *testing.T) {
diff --git a/web/public/static/langs/zh_Hans.json b/web/public/static/langs/zh_Hans.json
new file mode 100644
index 0000000000000000000000000000000000000000..e084bcf289809a9ce29625baaea5019e57f42554
--- /dev/null
+++ b/web/public/static/langs/zh_Hans.json
@@ -0,0 +1,191 @@
+{
+    "action_bar_show_menu": "显示菜单",
+    "action_bar_logo_alt": "ntfy图标",
+    "action_bar_settings": "设置",
+    "action_bar_send_test_notification": "发送测试通知",
+    "action_bar_clear_notifications": "清除所有通知",
+    "action_bar_unsubscribe": "取消订阅",
+    "action_bar_toggle_action_menu": "开启或关闭操作菜单",
+    "message_bar_type_message": "在此处输入消息",
+    "message_bar_show_dialog": "显示发布对话框",
+    "message_bar_publish": "发布消息",
+    "nav_topics_title": "订阅主题",
+    "nav_button_all_notifications": "全部通知",
+    "nav_button_documentation": "文档",
+    "nav_button_publish_message": "发布通知",
+    "nav_button_subscribe": "订阅主题",
+    "nav_button_connecting": "正在连接",
+    "alert_grant_title": "已禁用通知",
+    "alert_grant_description": "授予浏览器显示桌面通知的权限。",
+    "alert_grant_button": "现在授予",
+    "alert_not_supported_title": "不支持通知",
+    "alert_not_supported_description": "您的浏览器不支持通知。",
+    "notifications_list": "通知列表",
+    "notifications_list_item": "通知",
+    "notifications_mark_read": "标记为已读",
+    "notifications_copied_to_clipboard": "复制到剪贴板",
+    "notifications_tags": "标记",
+    "notifications_priority_x": "优先级 {{priority}}",
+    "notifications_new_indicator": "新通知",
+    "notifications_attachment_open_button": "打开附件",
+    "notifications_attachment_link_expires": "链接过期 {{date}}",
+    "notifications_attachment_link_expired": "下载链接已过期",
+    "notifications_attachment_file_image": "图片文件",
+    "notifications_attachment_image": "附件图片",
+    "notifications_attachment_file_video": "视频文件",
+    "notifications_attachment_file_audio": "音频文件",
+    "notifications_attachment_file_app": "安卓应用文件",
+    "notifications_attachment_file_document": "其他文件",
+    "notifications_click_copy_url_title": "复制链接地址到剪贴板",
+    "notifications_click_copy_url_button": "复制链接",
+    "notifications_click_open_button": "打开链接",
+    "action_bar_toggle_mute": "暂停或恢复通知",
+    "nav_button_muted": "已暂停通知",
+    "notifications_actions_not_supported": "网页应用程序不支持操作",
+    "notifications_none_for_topic_title": "您尚未收到有关此主题的任何通知。",
+    "notifications_none_for_any_title": "您尚未收到任何通知。",
+    "notifications_none_for_any_description": "要向此主题发送通知，只需使用 PUT 或 POST 到主题链接即可。以下是使用您的主题的示例。",
+    "notifications_no_subscriptions_title": "看起来你还没有任何订阅。",
+    "notifications_example": "示例",
+    "notifications_more_details": "有关更多信息，请查看<websiteLink>网站</websiteLink>或<docsLink>文档</docsLink>。",
+    "notifications_loading": "正在加载通知……",
+    "publish_dialog_title_topic": "发布到 {{topic}}",
+    "publish_dialog_title_no_topic": "发布通知",
+    "publish_dialog_progress_uploading": "正在上传……",
+    "publish_dialog_progress_uploading_detail": "正在上传 {{loaded}}/{{total}} ({{percent}}%) ……",
+    "publish_dialog_message_published": "已发布通知",
+    "publish_dialog_attachment_limits_file_and_quota_reached": "超过 {{fileSizeLimit}} 文件限制和配额，剩余 {{remainingBytes}}",
+    "publish_dialog_emoji_picker_show": "选择表情符号",
+    "publish_dialog_priority_min": "最低优先级",
+    "publish_dialog_priority_low": "低优先级",
+    "publish_dialog_priority_default": "默认优先级",
+    "publish_dialog_priority_high": "高优先级",
+    "publish_dialog_priority_max": "最高优先级",
+    "publish_dialog_topic_label": "主题名称",
+    "publish_dialog_topic_placeholder": "主题名称，例如 phil_alerts",
+    "publish_dialog_topic_reset": "重置主题",
+    "publish_dialog_title_label": "主题",
+    "publish_dialog_message_label": "消息",
+    "publish_dialog_message_placeholder": "在此输入消息",
+    "publish_dialog_tags_label": "标记",
+    "publish_dialog_priority_label": "优先级",
+    "publish_dialog_base_url_label": "服务链接地址",
+    "publish_dialog_base_url_placeholder": "服务链接地址，例如 https://example.com",
+    "publish_dialog_click_label": "点击链接地址",
+    "publish_dialog_click_placeholder": "点击通知时打开链接地址",
+    "publish_dialog_email_placeholder": "将通知转发到的地址，例如 phil@example.com",
+    "publish_dialog_email_reset": "移除电子邮件转发",
+    "publish_dialog_filename_label": "文件名",
+    "publish_dialog_filename_placeholder": "附件文件名",
+    "publish_dialog_delay_label": "延期",
+    "publish_dialog_other_features": "其它功能：",
+    "publish_dialog_attach_placeholder": "使用链接地址附加文件，例如 https://f-droid.org/F-Droid.apk",
+    "publish_dialog_delay_reset": "删除延迟交付",
+    "publish_dialog_attach_reset": "移除附件链接地址",
+    "publish_dialog_chip_click_label": "点击链接地址",
+    "publish_dialog_chip_email_label": "转发邮件",
+    "publish_dialog_chip_attach_file_label": "本地文件附件",
+    "publish_dialog_chip_topic_label": "变更主题",
+    "publish_dialog_button_cancel_sending": "取消发送",
+    "publish_dialog_checkbox_publish_another": "发布另一个",
+    "publish_dialog_attached_file_title": "附件文件：",
+    "publish_dialog_attached_file_filename_placeholder": "附件文件名",
+    "publish_dialog_attached_file_remove": "删除附件文件",
+    "publish_dialog_drop_file_here": "将文件拖拽至此",
+    "emoji_picker_search_placeholder": "查找表情符号",
+    "emoji_picker_search_clear": "清除搜索",
+    "subscribe_dialog_subscribe_title": "订阅主题",
+    "publish_dialog_chip_delay_label": "延迟交付",
+    "publish_dialog_chip_attach_url_label": "链接附件地址",
+    "subscribe_dialog_subscribe_use_another_label": "使用其他服务器",
+    "subscribe_dialog_subscribe_button_subscribe": "订阅",
+    "subscribe_dialog_login_title": "请登录",
+    "subscribe_dialog_login_description": "本主题受密码保护，请输入用户名和密码进行订阅。",
+    "subscribe_dialog_login_username_label": "用户名，例如 phil",
+    "subscribe_dialog_login_password_label": "密码",
+    "subscribe_dialog_login_button_back": "返回",
+    "subscribe_dialog_login_button_login": "登录",
+    "subscribe_dialog_error_user_not_authorized": "未授权 {{username}} 用户",
+    "subscribe_dialog_error_user_anonymous": "匿名",
+    "prefs_notifications_title": "通知",
+    "prefs_notifications_sound_title": "通知提示音",
+    "prefs_notifications_sound_description_none": "收到通知时不播放任何声音",
+    "prefs_notifications_sound_description_some": "收到通知时播放 {{sound}} 声音",
+    "prefs_notifications_sound_no_sound": "静音",
+    "prefs_notifications_sound_play": "播放选中声音",
+    "prefs_notifications_min_priority_title": "最低优先级",
+    "prefs_notifications_min_priority_description_x_or_higher": "仅显示优先级为{{number}}（{{name}}）或以上的通知",
+    "prefs_notifications_min_priority_description_max": "仅显示最高优先级的通知",
+    "prefs_notifications_min_priority_any": "任意优先级",
+    "prefs_notifications_min_priority_low_and_higher": "低优先级和更高优先级",
+    "prefs_notifications_min_priority_default_and_higher": "默认优先级或更高优先级",
+    "prefs_notifications_min_priority_high_and_higher": "高优先级或更高优先级",
+    "prefs_notifications_min_priority_max_only": "仅最高优先级",
+    "prefs_notifications_delete_after_never": "从不",
+    "prefs_notifications_delete_after_one_month": "一月后",
+    "prefs_notifications_delete_after_one_week": "一周后",
+    "prefs_notifications_delete_after_never_description": "永不自动删除通知",
+    "prefs_notifications_delete_after_three_hours_description": "三小时后自动删除通知",
+    "prefs_notifications_delete_after_one_day_description": "一天后自动删除通知",
+    "prefs_notifications_delete_after_one_week_description": "一周后自动删除通知",
+    "prefs_notifications_delete_after_one_month_description": "一月后后自动删除通知",
+    "prefs_users_title": "管理用户",
+    "prefs_users_description": "在此处添加/删除受保护主题的用户。请注意，用户名和密码存储在浏览器的本地存储中。",
+    "prefs_users_add_button": "添加用户",
+    "prefs_users_dialog_title_add": "添加用户",
+    "prefs_users_dialog_title_edit": "编辑用户",
+    "prefs_users_dialog_username_label": "用户名，例如 phil",
+    "prefs_users_dialog_password_label": "密码",
+    "prefs_users_dialog_button_cancel": "取消",
+    "prefs_users_dialog_button_save": "保存",
+    "prefs_appearance_title": "外观",
+    "prefs_appearance_language_title": "语言",
+    "priority_min": "最低",
+    "priority_low": "低",
+    "priority_default": "默认",
+    "priority_high": "高",
+    "priority_max": "最高",
+    "error_boundary_title": "天啊，ntfy 崩溃了",
+    "prefs_users_table_base_url_header": "服务链接地址",
+    "prefs_users_dialog_base_url_label": "服务链接地址，例如 https://ntfy.sh",
+    "error_boundary_button_copy_stack_trace": "复制堆栈跟踪",
+    "error_boundary_stack_trace": "堆栈跟踪",
+    "error_boundary_gathering_info": "收集更多信息……",
+    "error_boundary_unsupported_indexeddb_title": "不支持隐私浏览",
+    "error_boundary_unsupported_indexeddb_description": "Ntfy Web应用程序需要IndexedDB才能运行，并且您的浏览器在私隐私浏览模式下不支持IndexedDB。<br/><br/>虽然这很不幸，但在隐私浏览模式下使用ntfy Web应用程序也没有多大意义，因为所有东西都存储在浏览器存储中。您可以在<githubLink>本GitHub问题</githubLink>中阅读有关它的更多信息，或者在<discordLink>Discord</discordLink>或<matrixLink>Matrix</matrixLink>上与我们交谈。",
+    "message_bar_error_publishing": "发布通知时出错",
+    "nav_button_settings": "设置",
+    "notifications_delete": "删除",
+    "notifications_attachment_copy_url_title": "将附件中链接地址复制到剪贴板",
+    "notifications_attachment_copy_url_button": "复制链接地址",
+    "notifications_attachment_open_title": "转到 {{url}}",
+    "notifications_actions_http_request_title": "发送 HTTP {{method}} 到 {{url}}",
+    "notifications_actions_open_url_title": "转到 {{url}}",
+    "notifications_none_for_topic_description": "要向此主题发送通知，只需使用 PUT 或 POST 到主题链接即可。",
+    "subscribe_dialog_subscribe_topic_placeholder": "主题名，例如 phil_alerts",
+    "notifications_no_subscriptions_description": "单击 \"{{linktext}}\" 链接以创建或订阅主题。之后，您可以使用 PUT 或 POST 发送消息，您将在这里收到通知。",
+    "publish_dialog_attachment_limits_file_reached": "超过 {{fileSizeLimit}} 文件限制",
+    "publish_dialog_title_placeholder": "主题标题，例如 磁盘空间告警",
+    "publish_dialog_email_label": "电子邮件",
+    "publish_dialog_button_send": "发送",
+    "publish_dialog_attachment_limits_quota_reached": "超过配额，剩余 {{remainingBytes}}",
+    "publish_dialog_attach_label": "附件链接地址",
+    "publish_dialog_click_reset": "移除点击连接地址",
+    "publish_dialog_button_cancel": "取消",
+    "subscribe_dialog_subscribe_button_cancel": "取消",
+    "subscribe_dialog_subscribe_base_url_label": "服务地址地址",
+    "prefs_notifications_min_priority_description_any": "显示所有通知，无论优先级如何",
+    "prefs_notifications_delete_after_title": "删除通知",
+    "prefs_notifications_delete_after_three_hours": "三小时后",
+    "prefs_users_delete_button": "删除用户",
+    "prefs_users_table_user_header": "用户",
+    "prefs_users_dialog_button_add": "添加",
+    "prefs_notifications_delete_after_one_day": "一天后",
+    "error_boundary_description": "这显然不应该发生。对此非常抱歉。<br/>如果您有时间，请<githubLink>在GitHub</githubLink>上报告，或通过<discordLink>Discord</discordLink>或<matrixLink>Matrix</matrixLink>告诉我们。",
+    "prefs_users_table": "用户表",
+    "prefs_users_edit_button": "编辑用户",
+    "publish_dialog_tags_placeholder": "英文逗号分隔标记列表，例如 warning, srv1-backup",
+    "publish_dialog_details_examples_description": "有关所有发送功能的示例和详细说明，请参阅<docsLink>文档</docsLink>。",
+    "subscribe_dialog_subscribe_description": "主题可能不受密码保护，因此请选择一个不容易猜测的名字。订阅后，您可以使用 PUT/POST 通知。",
+    "publish_dialog_delay_placeholder": "延迟交付，例如{{unixTimestamp}}、{{relativeTime}}或“{{naturalLanguage}}”（仅限英语）"
+}
diff --git a/web/src/components/Preferences.js b/web/src/components/Preferences.js
index b93702fa7fe837d9c097e67b934d388cf4c43efb..e2899ecce1a9c902205577cfb456910f49f989b9 100644
--- a/web/src/components/Preferences.js
+++ b/web/src/components/Preferences.js
@@ -436,7 +436,7 @@ const Appearance = () => {
 const Language = () => {
     const { t, i18n } = useTranslation();
     const labelId = "prefLanguage";
-    const randomFlags = shuffle(["🇬🇧", "🇺🇸", "🇪🇸", "🇫🇷", "🇧🇬", "🇨🇿", "🇩🇪", "🇮🇹", "🇭🇺", "🇧🇷", "🇮🇩", "🇯🇵", "🇷🇺", "🇹🇷"]).slice(0, 3);
+    const randomFlags = shuffle(["🇬🇧", "🇺🇸", "🇪🇸", "🇫🇷", "🇧🇬", "🇨🇿", "🇩🇪", "🇨🇳", "🇮🇹", "🇭🇺", "🇧🇷", "🇮🇩", "🇯🇵", "🇷🇺", "🇹🇷"]).slice(0, 3);
     const title = t("prefs_appearance_language_title") + " " + randomFlags.join(" ");
     const lang = i18n.language ?? "en";
 
@@ -452,6 +452,7 @@ const Language = () => {
                     <MenuItem value="id">Bahasa Indonesia</MenuItem>
                     <MenuItem value="bg">Български</MenuItem>
                     <MenuItem value="cs">Čeština</MenuItem>
+                    <MenuItem value="zh_Hans">中文</MenuItem>
                     <MenuItem value="de">Deutsch</MenuItem>
                     <MenuItem value="es">Español</MenuItem>
                     <MenuItem value="fr">Français</MenuItem>