diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 5f81a15..e2d28bd 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -22,6 +22,7 @@ jobs:
       - name: "Build"
         run: yarn build
         env:
+          REACT_APP_ROOM_ID: 1
           REACT_APP_BACKEND: "https://api.hole-thu-qwertyuiop.xyz/"
           REACT_APP_STORAGE: "https://file.hole-thu-qwertyuiop.xyz/"
           REACT_APP_BUILD_INFO: "v-${{steps.date.outputs.date}}"
diff --git a/src/Config.js b/src/Config.js
index 87ea1b3..6ddbbc3 100644
--- a/src/Config.js
+++ b/src/Config.js
@@ -22,11 +22,12 @@ const BUILTIN_IMGS = {
 
 const DEFAULT_CONFIG = {
   background_img:
-    '//cdn.jsdelivr.net/gh/thuhole/webhole@gh-pages/static/bg/gbp.jpg',
+    'https://cdn.jsdelivr.net/gh/thuhole/webhole@gh-pages/static/bg/gbp.jpg',
   background_color: '#113366',
   pressure: false,
   easter_egg: true,
   color_scheme: 'default',
+  show_all_rooms: false,
   block_tmp: true,
   block_cw: ['xxg', 'zzxg'],
   block_words_v4: ['🕷️', '[系统自动代发]'],
@@ -363,6 +364,13 @@ export class ConfigUI extends PureComponent {
             callback={this.save_changes_bound}
           />
           <hr />
+          <ConfigSwitch
+            callback={this.save_changes_bound}
+            id="show_all_rooms"
+            name="展示所有分区"
+            description="展示来自所有分区而非仅当前分区的洞"
+          />
+          <hr />
           <ConfigSwitch
             callback={this.save_changes_bound}
             id="block_tmp"
diff --git a/src/Flows.js b/src/Flows.js
index 7799b7c..ba2ad53 100644
--- a/src/Flows.js
+++ b/src/Flows.js
@@ -294,6 +294,9 @@ class FlowItem extends PureComponent {
             <code className="box-id">
               <a href={'##' + info.pid} onClick={this.copy_link.bind(this)}>
                 #{info.pid}
+                {info.room_id !== parseInt(process.env.REACT_APP_ROOM_ID) && (
+                  <> @{info.room_id}</>
+                )}
               </a>
             </code>
             &nbsp;
diff --git a/src/Title.js b/src/Title.js
index f75f443..5558cac 100644
--- a/src/Title.js
+++ b/src/Title.js
@@ -206,6 +206,7 @@ export function Title(props) {
               }
             >
               新T树洞
+              <sup>{process.env.REACT_APP_ROOM_ID || '?'}</sup>
             </span>
           </p>
         </div>
diff --git a/src/UserAction.js b/src/UserAction.js
index e3f7250..32a39cf 100644
--- a/src/UserAction.js
+++ b/src/UserAction.js
@@ -588,7 +588,7 @@ export class PostForm extends Component {
       text: text,
       allow_search: allow_search ? '1' : '',
       use_title: use_title ? '1' : '',
-      type: 'text',
+      room_id: process.env.REACT_APP_ROOM_ID,
     });
     if (has_poll) {
       poll_options.forEach((opt) => {
diff --git a/src/flows_api.js b/src/flows_api.js
index a32d343..e2d4856 100644
--- a/src/flows_api.js
+++ b/src/flows_api.js
@@ -168,7 +168,9 @@ export const API = {
 
   get_list: async (page, token, submode) => {
     let response = await fetch(
-      `${get_api_base()}/getlist?p=${page}&order_mode=${submode}`,
+      `${get_api_base()}/getlist?p=${page}&order_mode=${submode}&room_id=${
+        window.config.show_all_rooms ? '' : process.env.REACT_APP_ROOM_ID
+      }`,
       {
         headers: { 'User-Token': token },
       },
@@ -178,9 +180,9 @@ export const API = {
 
   get_search: async (page, keyword, token, submode) => {
     let response = await fetch(
-      `${get_api_base()}/search?search_mode=${submode}&page=${page}&keywords=${encodeURIComponent(
-        keyword,
-      )}&pagesize=${SEARCH_PAGESIZE}`,
+      `${get_api_base()}/search?search_mode=${submode}&page=${page}&room_id=${
+        window.config.show_all_rooms ? '' : process.env.REACT_APP_ROOM_ID
+      }&keywords=${encodeURIComponent(keyword)}&pagesize=${SEARCH_PAGESIZE}`,
       {
         headers: { 'User-Token': token },
       },