diff --git a/.agent/skills/git-manager/cheatsheet.md b/.agent/skills/git-manager/cheatsheet.md
index de59287..21dadbc 100644
--- a/.agent/skills/git-manager/cheatsheet.md
+++ b/.agent/skills/git-manager/cheatsheet.md
@@ -15,8 +15,8 @@ root 폴더에 .bare 폴더를 생성하고 그 안에 워크트리 폴더를 
 ```bash
 
 git -C .bare worktree list # 현재 생성된 모든 워크트리(작업 폴더) 목록 확인
-git -C .bare worktree add ../<폴더명> <브랜치명> # 새 브랜치를 따면서 새 폴더 생성
-git -C .bare worktree add ../<폴더명> # 기존 브랜치를 새 폴더로 체크아웃
+git -C .bare worktree add ../<폴더명> <브랜치명> # 기존 브랜치를 새 폴더로 체크아웃
+git -C .bare worktree add -b <브랜치명> ../<폴더명> # 새 브랜치를 따면서 새 폴더 생성
 git -C .bare worktree remove <폴더명> # 작업 폴더 삭제 (Git 연결 해제)
 git -C .bare worktree prune # 폴더를 강제 삭제(rm -rf)했을 때 찌꺼기 정리
 git -C .bare worktree move <구폴더> ../<신폴더> # 워크트리 폴더 경로/이름 변경
diff --git a/messages/en.json b/messages/en.json
index 3e8aa0e..ad7c8de 100644
--- a/messages/en.json
+++ b/messages/en.json
@@ -23,6 +23,7 @@
     "privacy": "Privacy Policy",
     "about": "About",
     "terms": "Terms of Use",
+    "contact": "Contact",
     "copyright": "© {year} VXD Blog. Built with Next.js & Notion."
   },
   "Privacy": {
@@ -48,7 +49,8 @@
     "aboutAuthorTitle": "About the Author",
     "aboutAuthorContent": "Hello! I'm an engineer who loves development. I enjoy exploring new technologies and sharing what I've learned.",
     "contactTitle": "Contact",
-    "contactContent": "If you have any inquiries, please reach out through GitHub."
+    "contactContent": "If you have any inquiries, please reach out through GitHub or email.",
+    "emailLabel": "Send Email"
   },
   "Terms": {
     "back": "Home",
diff --git a/messages/ko.json b/messages/ko.json
index 4b6a4dd..e20fb1a 100644
--- a/messages/ko.json
+++ b/messages/ko.json
@@ -23,6 +23,7 @@
     "privacy": "개인정보처리방침",
     "about": "소개",
     "terms": "이용약관",
+    "contact": "문의하기",
     "copyright": "© {year} VXD Blog. Built with Next.js & Notion."
   },
   "Privacy": {
@@ -48,7 +49,8 @@
     "aboutAuthorTitle": "운영자 소개",
     "aboutAuthorContent": "안녕하세요! 개발을 좋아하는 엔지니어입니다. 새로운 기술을 탐구하고 배운 것을 정리하여 공유하는 것을 즐깁니다.",
     "contactTitle": "연락처",
-    "contactContent": "문의사항이 있으시면 GitHub를 통해 연락해 주세요."
+    "contactContent": "문의사항이 있으시면 GitHub 또는 이메일을 통해 연락해 주세요.",
+    "emailLabel": "이메일 보내기"
   },
   "Terms": {
     "back": "홈으로",
diff --git a/src/app/[locale]/about/page.tsx b/src/app/[locale]/about/page.tsx
index 40ea022..78f15b5 100644
--- a/src/app/[locale]/about/page.tsx
+++ b/src/app/[locale]/about/page.tsx
@@ -1,7 +1,7 @@
 import { getTranslations } from 'next-intl/server';
 import { Link } from '@/i18n/routing';
 import { Metadata } from 'next';
-import { ExternalLink } from 'lucide-react';
+import { ExternalLink, Mail } from 'lucide-react';
 
 type Props = {
   params: Promise<{ locale: string }>;
@@ -70,6 +70,13 @@ export default async function AboutPage() {
               VXD&apos;s GitHub
               <ExternalLink className="w-4 h-4" />
             </Link>
+            <a 
+              href="mailto:visionexperiencedeveloper@gmail.com" 
+              className="inline-flex items-center gap-2 mt-4 ml-4 px-4 py-2 text-sm font-medium text-neutral-700 dark:text-neutral-300 bg-neutral-100 dark:bg-neutral-800 border border-neutral-200 dark:border-neutral-700 rounded-lg hover:bg-neutral-200 dark:hover:bg-neutral-700 hover:border-neutral-300 dark:hover:border-neutral-600 transition-all"
+            >
+              {t('emailLabel')}
+              <Mail className="w-4 h-4" />
+            </a>
           </section>
         </div>
       </div>
diff --git a/src/components/utils/Footer.tsx b/src/components/utils/Footer.tsx
index d6a76a7..1c79e17 100644
--- a/src/components/utils/Footer.tsx
+++ b/src/components/utils/Footer.tsx
@@ -27,6 +27,12 @@ export async function Footer() {
           >
             {t('terms')}
           </Link>
+          <a
+            href="mailto:visionexperiencedeveloper@gmail.com"
+            className="text-neutral-500 hover:text-neutral-900 dark:hover:text-neutral-100 transition-colors"
+          >
+            {t('contact')}
+          </a>
         </nav>
         <p className="text-neutral-500 text-sm">
           {t('copyright', { year })}
diff --git a/src/lib/notion.ts b/src/lib/notion.ts
index d4c51be..03bb535 100644
--- a/src/lib/notion.ts
+++ b/src/lib/notion.ts
@@ -2,4 +2,5 @@ import { Client } from "@notionhq/client";
 
 export const notion = new Client({
   auth: process.env.NOTION_API_KEY,
+  timeoutMs: 180000, 
 });
diff --git a/src/lib/services/posts.service.ts b/src/lib/services/posts.service.ts
index 9adab50..a57f666 100644
--- a/src/lib/services/posts.service.ts
+++ b/src/lib/services/posts.service.ts
@@ -44,6 +44,19 @@ const getCachedAllPosts = unstable_cache(async (): Promise<BlogPost[] | null> =>
     .filter((page): page is PageObjectResponse => 'properties' in page)
     .map(extractBlogPostFromPage);
 
+  // Sync cover images between translations
+  // If a post has no cover but has a translationId, try to use the translation's cover
+  const postsMap = new Map(posts.map(p => [p.id, p]));
+
+  posts.forEach(post => {
+    if (!post.cover && post.translationId) {
+      const translatedPost = postsMap.get(post.translationId);
+      if (translatedPost?.cover) {
+        post.cover = translatedPost.cover;
+      }
+    }
+  });
+
   return posts;
 }, ['all-posts'], { revalidate });