diff --git a/ai-agent-sandboxing-en.md b/ai-agent-sandboxing-en.md
index fb4a0d0..b000612 100644
--- a/ai-agent-sandboxing-en.md
+++ b/ai-agent-sandboxing-en.md
@@ -685,7 +685,7 @@ section.closing::before {
   position: absolute;
   right: 0;
   text-align: center;
-  top: 470px;
+  top: 450px;
 }
 
 .closing-links a {
@@ -1631,6 +1631,7 @@ Sandboxing AI Agents on Ubuntu
 
 <div class="closing-links">
   <a href="https://devkimchi.com/github-copilot-sandbox">devkimchi.com/github-copilot-sandbox</a>
+  <a href="https://github.com/devkimchi/github-copilot-sandbox">github.com/devkimchi/github-copilot-sandbox</a>
 </div>
 
 <div class="closing-speaker">
diff --git a/ai-agent-sandboxing-ko.md b/ai-agent-sandboxing-ko.md
index 1410871..e9eb711 100644
--- a/ai-agent-sandboxing-ko.md
+++ b/ai-agent-sandboxing-ko.md
@@ -680,7 +680,7 @@ section.closing::before {
   position: absolute;
   right: 0;
   text-align: center;
-  top: 470px;
+  top: 450px;
 }
 
 .closing-links a {
@@ -1641,6 +1641,7 @@ GitHub Copilot과 같은 <strong>AI 코딩 에이전트</strong>의<br>
 
 <div class="closing-links">
   <a href="https://devkimchi.com/github-copilot-sandbox">devkimchi.com/github-copilot-sandbox</a>
+  <a href="https://github.com/devkimchi/github-copilot-sandbox">github.com/devkimchi/github-copilot-sandbox</a>
 </div>
 
 <div class="closing-speaker">
diff --git a/ai-agent-sandboxing-ubucon.md b/ai-agent-sandboxing-ubucon.md
index 2a94695..58529cb 100644
--- a/ai-agent-sandboxing-ubucon.md
+++ b/ai-agent-sandboxing-ubucon.md
@@ -640,7 +640,7 @@ section.closing::after {
   position: absolute;
   right: 0;
   text-align: center;
-  top: 450px;
+  top: 430px;
 }
 
 .closing-links a {
@@ -1600,6 +1600,7 @@ GitHub Copilot과 같은 <strong>AI 코딩 에이전트</strong>의<br>
 
 <div class="closing-links">
   <a href="https://devkimchi.com/github-copilot-sandbox">devkimchi.com/github-copilot-sandbox</a>
+  <a href="https://github.com/devkimchi/github-copilot-sandbox">github.com/devkimchi/github-copilot-sandbox</a>
 </div>
 
 <div class="closing-speaker">