diff --git a/install/install.ts b/install/install.ts
index df84d6ff1..ea696a83f 100644
--- a/install/install.ts
+++ b/install/install.ts
@@ -305,7 +305,7 @@ const Steps = () => [
     {
         init: 'install.preparing',
         operations: [
-            () => {
+            async () => {
                 if (process.env.IGNORE_BT) return;
                 const res = exec('bt default');
                 if (!res.code) {
@@ -314,6 +314,7 @@ const Steps = () => [
                         process.exit(1);
                     } else {
                         log.warn('warn.bt');
+                        await sleep(5000);
                     }
                 }
             },
@@ -407,7 +408,7 @@ ${nixConfBase}`);
     },
     {
         init: 'install.caddy',
-        skip: () => !exec('caddy version').code || installAsJudge || noCaddy,
+        skip: () => !exec('caddy version').code || installAsJudge || noCaddy || !existsSync(`${process.env.HOME}/.hydro/Caddyfile`),
         hidden: installAsJudge,
         operations: [
             'nix-env -iA nixpkgs.caddy',
diff --git a/packages/hydrooj/package.json b/packages/hydrooj/package.json
index 94c38e893..a07fa55eb 100644
--- a/packages/hydrooj/package.json
+++ b/packages/hydrooj/package.json
@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "4.16.0",
+    "version": "4.16.1",
     "bin": "bin/hydrooj.js",
     "main": "src/plugin-api",
     "module": "src/plugin-api",
@@ -25,7 +25,6 @@
         "adm-zip": "0.5.14",
         "cac": "^6.7.14",
         "cordis": "3.18.1",
-        "detect-browser": "^5.3.0",
         "emoji-regex": "^10.4.0",
         "emojis-list": "2.1.0",
         "fs-extra": "^11.2.0",
@@ -51,7 +50,8 @@
         "shorty.js": "^1.0.1",
         "superagent": "^10.1.0",
         "tar": "6.2.1",
-        "thirty-two": "^1.0.2"
+        "thirty-two": "^1.0.2",
+        "ua-parser-js": "^1.0.39"
     },
     "devDependencies": {
         "@types/adm-zip": "^0.4.34",
diff --git a/packages/hydrooj/src/handler/contest.ts b/packages/hydrooj/src/handler/contest.ts
index fe774722b..efd8a3954 100644
--- a/packages/hydrooj/src/handler/contest.ts
+++ b/packages/hydrooj/src/handler/contest.ts
@@ -285,6 +285,13 @@ export class ContestScoreboardHandler extends ContestDetailBaseHandler {
         const pid = (i: number) => String.fromCharCode(65 + i);
         const escape = (i: string) => i.replace(/[",]/g, '');
         const unknownSchool = this.translate('Unknown School');
+        const statusMap = {
+            [STATUS.STATUS_ACCEPTED]: 'AC',
+            [STATUS.STATUS_WRONG_ANSWER]: 'WA',
+            [STATUS.STATUS_COMPILE_ERROR]: 'CE',
+            [STATUS.STATUS_TIME_LIMIT_EXCEEDED]: 'TL',
+            [STATUS.STATUS_RUNTIME_ERROR]: 'RT',
+        };
         const submissions = teams.flatMap((i, idx) => {
             if (!i.journal) return [];
             const journal = i.journal.filter((s) => tdoc.pids.includes(s.pid));
@@ -292,7 +299,7 @@ export class ContestScoreboardHandler extends ContestDetailBaseHandler {
             return journal.map((s) => {
                 const id = pid(tdoc.pids.indexOf(s.pid));
                 c[id]++;
-                return `@s ${idx + 1},${id},${c[id]},${time(s.rid)},${s.status === STATUS.STATUS_ACCEPTED ? 'AC' : 'RJ'}`;
+                return `@s ${idx + 1},${id},${c[id]},${time(s.rid)},${statusMap[s.status] || 'RJ'}`;
             });
         });
         const res = [
diff --git a/packages/hydrooj/src/handler/home.ts b/packages/hydrooj/src/handler/home.ts
index fa42f38ff..d2eefa4e1 100644
--- a/packages/hydrooj/src/handler/home.ts
+++ b/packages/hydrooj/src/handler/home.ts
@@ -3,6 +3,7 @@ import { generateRegistrationOptions, verifyRegistrationResponse } from '@simple
 import yaml from 'js-yaml';
 import { pick } from 'lodash';
 import { Binary, ObjectId } from 'mongodb';
+import Parser from 'ua-parser-js';
 import { Context } from '../context';
 import {
     AuthOperationError, BlacklistedError, DomainAlreadyExistsError, InvalidTokenError,
@@ -12,7 +13,6 @@ import {
 import { DomainDoc, MessageDoc, Setting } from '../interface';
 import avatar, { validate } from '../lib/avatar';
 import * as mail from '../lib/mail';
-import * as useragent from '../lib/useragent';
 import { verifyTFA } from '../lib/verifyTFA';
 import BlackListModel from '../model/blacklist';
 import { PERM, PRIV } from '../model/builtin';
@@ -187,7 +187,11 @@ class HomeSecurityHandler extends Handler {
         for (const session of sessions) {
             session.isCurrent = session._id === this.session._id;
             session._id = md5(session._id);
-            session.updateUa = useragent.parse(session.updateUa || session.createUa || '');
+            const ua = session.updateUa || session.createUa;
+            if (ua) {
+                const parser = new Parser(ua);
+                session.updateUaInfo = parser.getResult();
+            }
             session.updateGeoip = this.ctx.geoip?.lookup?.(
                 session.updateIp || session.createIp,
                 this.translate('geoip_locale'),
@@ -202,7 +206,6 @@ class HomeSecurityHandler extends Handler {
                 'authenticatorAttachment', 'regat', 'fmt',
             ])),
             geoipProvider: this.ctx?.geoip?.provider,
-            icon: (str = '') => str.split(' ')[0].toLowerCase(),
         };
     }
 
diff --git a/packages/hydrooj/src/handler/user.ts b/packages/hydrooj/src/handler/user.ts
index 305b0b0c0..7213801f6 100644
--- a/packages/hydrooj/src/handler/user.ts
+++ b/packages/hydrooj/src/handler/user.ts
@@ -271,6 +271,7 @@ class UserRegisterWithCodeHandler extends Handler {
         if (mailDomain === 'qq.com' && !Number.isNaN(+id)) $set.avatar = `qq:${id}`;
         if (this.session.viewLang) $set.viewLang = this.session.viewLang;
         if (Object.keys($set).length) await user.setById(uid, $set);
+        if (Object.keys(this.tdoc.setInDomain || {}).length) await domain.setUserInDomain(domainId, uid, this.tdoc.setInDomain);
         if (this.tdoc.oauth) await oauth.set(this.tdoc.oauth[1], uid);
         this.context.HydroContext.user = await user.getById(domainId, uid);
         this.session.viewLang = '';
@@ -453,7 +454,7 @@ class OauthCallbackHandler extends Handler {
                     break;
                 }
             }
-            const set: Partial<Udoc> = { oauth: args.type };
+            const set: Partial<Udoc> = { ...(r.set || {}), oauth: args.type };
             if (r.bio) set.bio = r.bio;
             if (r.viewLang) set.viewLang = r.viewLang;
             if (r.avatar) set.avatar = r.avatar;
@@ -465,6 +466,7 @@ class OauthCallbackHandler extends Handler {
                     username,
                     redirect: this.domain.registerRedirect,
                     set,
+                    setInDomain: r.setInDomain,
                     oauth: [args.type, r._id],
                 },
             );
diff --git a/packages/hydrooj/src/interface.ts b/packages/hydrooj/src/interface.ts
index 9ffda1dda..7feedcc25 100644
--- a/packages/hydrooj/src/interface.ts
+++ b/packages/hydrooj/src/interface.ts
@@ -58,6 +58,8 @@ export interface OAuthUserResponse {
     bio?: string;
     uname?: string[];
     viewLang?: string;
+    set?: Record<string, any>;
+    setInDomain?: Record<string, any>;
 }
 
 export interface Authenticator {
diff --git a/packages/hydrooj/src/lib/useragent.ts b/packages/hydrooj/src/lib/useragent.ts
deleted file mode 100644
index 0dfb414d2..000000000
--- a/packages/hydrooj/src/lib/useragent.ts
+++ /dev/null
@@ -1,5 +0,0 @@
-import * as browser from 'detect-browser';
-
-export function parse(str: string) {
-    return browser.parseUserAgent(str);
-}
diff --git a/packages/hydrooj/src/service/db.ts b/packages/hydrooj/src/service/db.ts
index 9430b9ea6..6dee3f3fd 100644
--- a/packages/hydrooj/src/service/db.ts
+++ b/packages/hydrooj/src/service/db.ts
@@ -22,6 +22,7 @@ interface MongoConfig {
     url?: string,
     uri?: string,
     prefix?: string,
+    collectionMap?: Record<string, string>,
 }
 
 class MongoService {
@@ -54,8 +55,9 @@ class MongoService {
     }
 
     public collection<K extends keyof Collections>(c: K) {
-        if (this.opts.prefix) return this.db.collection<Collections[K]>(`${this.opts.prefix}.${c}`);
-        return this.db.collection<Collections[K]>(c);
+        let coll = this.opts.prefix ? `${this.opts.prefix}.${c}` : c;
+        if (this.opts.collectionMap?.[coll]) coll = this.opts.collectionMap[coll];
+        return this.db.collection<Collections[K]>(coll);
     }
 
     public async fixExpireAfter() {
diff --git a/packages/hydrooj/src/service/server.ts b/packages/hydrooj/src/service/server.ts
index 131e18227..e1d11976e 100644
--- a/packages/hydrooj/src/service/server.ts
+++ b/packages/hydrooj/src/service/server.ts
@@ -238,7 +238,7 @@ export async function apply(ctx: Context) {
                 return res;
             },
             paginate<T>(cursor: FindCursor<T>, page: number, key: string) {
-                return db.paginate(cursor, page, this.ctx.setting.get(`pagination.${key}`));
+                return db.paginate(cursor, page, this.ctx.setting.get(`pagination.${key}`) || 20);
             },
             checkPerm(...args: bigint[]) {
                 if (!this.user.hasPerm(...args)) {
diff --git a/packages/onlyoffice/index.ts b/packages/onlyoffice/index.ts
index b35f78f37..a5b6963ae 100644
--- a/packages/onlyoffice/index.ts
+++ b/packages/onlyoffice/index.ts
@@ -18,6 +18,7 @@ class OnlyofficeJWTHandler extends Handler {
         if (SystemModel.get('onlyoffice.externalSign')) {
             const res = await superagent.get(SystemModel.get('onlyoffice.externalSign')).query({ url });
             this.response.body = res.body;
+            return;
         }
         let path: string;
         try {
diff --git a/packages/onlyoffice/package.json b/packages/onlyoffice/package.json
index b0ca013a1..064a776d2 100644
--- a/packages/onlyoffice/package.json
+++ b/packages/onlyoffice/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@hydrooj/onlyoffice",
-    "version": "1.4.3",
+    "version": "1.4.4",
     "main": "index.ts",
     "repository": "git@github.com:hydro-dev/Hydro.git",
     "author": "undefined <i@undefined.moe>",
diff --git a/packages/ui-default/backendlib/markdown-it-xss.ts b/packages/ui-default/backendlib/markdown-it-xss.ts
index d9fbe90a8..c3033a8e4 100644
--- a/packages/ui-default/backendlib/markdown-it-xss.ts
+++ b/packages/ui-default/backendlib/markdown-it-xss.ts
@@ -151,7 +151,7 @@ export const xss = new FilterXSS({
   css: cssFilterOptions,
   safeAttrValue(tag, name, value) {
     if (name === 'id') return escapeAttrValue(`xss-id-${value}`);
-    if (name === 'class') return value.split(' ').filter((i) => whitelistClasses.includes(i)).join(' ');
+    if (name === 'class') return value.split(' ').filter((i) => whitelistClasses.includes(i) || i.startsWith('language-')).join(' ');
     return safeAttrValue(tag, name, value, CssFilter);
   },
 });
diff --git a/packages/ui-default/backendlib/template.ts b/packages/ui-default/backendlib/template.ts
index 7758a60dd..51222dc63 100644
--- a/packages/ui-default/backendlib/template.ts
+++ b/packages/ui-default/backendlib/template.ts
@@ -157,6 +157,14 @@ env.addGlobal('set', (obj, key, val) => {
 env.addGlobal('findSubModule', (prefix) => Object.keys(global.Hydro.ui.template).filter((n) => n.startsWith(prefix)));
 env.addGlobal('templateExists', (name) => !!global.Hydro.ui.template[name]);
 
+const platformIconMap = { 'mac os': 'mac' };
+const supportedPlatformIcons = ['android', 'chromeos', 'ios', 'linux', 'mac', 'mobile', 'windows'];
+env.addGlobal('platformIcon', (platform) => {
+  const key = platformIconMap[platform?.toLowerCase()] || platform?.toLowerCase();
+  if (supportedPlatformIcons.includes(key)) return key;
+  return 'unknown';
+});
+
 const render = (name: string, state: any) => new Promise<string>((resolve, reject) => {
   env.render(name, {
     page_name: name.split('.')[0],
diff --git a/packages/ui-default/package.json b/packages/ui-default/package.json
index f11e063c3..51593d6ea 100644
--- a/packages/ui-default/package.json
+++ b/packages/ui-default/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hydrooj/ui-default",
-  "version": "4.54.3",
+  "version": "4.54.4",
   "author": "undefined <i@undefined.moe>",
   "license": "AGPL-3.0",
   "main": "index.ts",
diff --git a/packages/ui-default/pages/record_detail.page.tsx b/packages/ui-default/pages/record_detail.page.tsx
index ae5684d89..723753639 100644
--- a/packages/ui-default/pages/record_detail.page.tsx
+++ b/packages/ui-default/pages/record_detail.page.tsx
@@ -13,7 +13,7 @@ export default new NamedPage('record_detail', async () => {
   $(document).on('click', '.subtask-case', function () {
     const text = $(this).find('.message').text();
     const data = $(this).find('.message').html();
-    if (!text?.trim()) return;
+    if (!text?.trim() || (!text.includes('\n') && text.length < 20)) return;
     new InfoDialog({
       $body: tpl(<pre dangerouslySetInnerHTML={{ __html: data }} />),
     }).open();
diff --git a/packages/ui-default/templates/home_security.html b/packages/ui-default/templates/home_security.html
index 406f933f5..ae47ea3d1 100644
--- a/packages/ui-default/templates/home_security.html
+++ b/packages/ui-default/templates/home_security.html
@@ -153,7 +153,7 @@
           <li class="sessionlist__item">
             <div class="media">
               <div class="media__left medium">
-                <span class="sessionlist__icon icon icon-platform--{{ icon(session.updateUa.os) }}"></span>
+                <span class="sessionlist__icon icon icon-platform--{{ platformIcon(session.updateUaInfo.os.name) }}"></span>
               </div>
               <div class="media__body medium typo">
                 <p>{{ _('Last Update At') }}: {{ datetimeSpan(session.updateAt)|safe }}</p>
@@ -161,8 +161,8 @@
                   <p>{{ _('Hostname') }}: {{ session.createHost }}</p>
                 {% endif %}
                 <p>{{ _('Location') }}: {{ _(session.updateGeoip.display) }} ({{ session.updateIp }})</p>
-                <p>{{ _('Operating System') }}: {{ session.updateUa.os }}</p>
-                <p>{{ _('Browser') }}: {{ session.updateUa.name }} {{ session.updateUa.version }}</p>
+                <p>{{ _('Operating System') }}: {{ session.updateUaInfo.os.name }} {{ session.updateUaInfo.os.version }}</p>
+                <p>{{ _('Browser') }}: {{ session.updateUaInfo.browser.name }} {{ session.updateUaInfo.browser.version }}</p>
                 {% if session.isCurrent %}
                 <p class="sessionlist__current-session"><span class="icon icon-check"></span> {{ _('This is the current session') }}</p>
                 {% endif %}
diff --git a/packages/ui-default/templates/partials/login_dialog.html b/packages/ui-default/templates/partials/login_dialog.html
index 2ecb04545..400315d37 100644
--- a/packages/ui-default/templates/partials/login_dialog.html
+++ b/packages/ui-default/templates/partials/login_dialog.html
@@ -1,13 +1,11 @@
 <div class="dialog dialog--signin" style="display:none">
   <div class="dialog__content">
-    {% if model.system.get('server.login') %}
+    {% if model.system.get('server.login') and handler.user.hasPriv(PRIV.PRIV_REGISTER_USER) %}
     <div class="dialog--signin__bg">
       <div class="dialog--signin__side">
         <h1>{{ _("Don't have an account?") }}</h1>
         <p>{{ _('By signing up a {0} universal account, you can submit code and join discussions in all online judging services provided by us.').format((handler.domain|default({ui:[]})).ui.name|default(model.system.get('server.name'))) }}</p>
-        {% if handler.user.hasPriv(PRIV.PRIV_REGISTER_USER) %}
         <div><a href="{{ url('user_register') }}" class="inverse rounded button">{{ _('Sign Up Now') }}</a></div>
-        {% endif %}
       </div>
     </div>
     {% endif %}