diff --git a/.github/content-payloads/system-design-concurrency-model-payload.json b/.github/content-payloads/system-design-concurrency-model-payload.json
new file mode 100644
index 0000000..7c1b039
--- /dev/null
+++ b/.github/content-payloads/system-design-concurrency-model-payload.json
@@ -0,0 +1,27 @@
+{
+  "version": "1.0.0",
+  "type": "content-addition",
+  "metadata": {
+    "title": "Concurrency Model",
+    "description": "Concurrency Model",
+    "author": "ishaileshpant",
+    "submissionDate": "2025-10-13",
+    "category": "system-design",
+    "subtopic": "system-design-concurrency-model"
+  },
+  "content": {
+    "id": "system-design-concurrency-model",
+    "title": "Concurrency Model",
+    "description": "Concurrency Model",
+    "repo": "prepguides/go-interviews",
+    "path": "patterns/README.md",
+    "type": "guide",
+    "status": "active"
+  },
+  "validation": {
+    "repoAccessible": true,
+    "fileExists": true,
+    "contentValid": true,
+    "categoryValid": true
+  }
+}
\ No newline at end of file
diff --git a/content-config.json b/content-config.json
index d4ee27b..be036ca 100644
--- a/content-config.json
+++ b/content-config.json
@@ -285,14 +285,31 @@
         "primary": "#6366f1",
         "secondary": "#4f46e5"
       },
-      "subtopics": {}
+      "subtopics": {
+        "system-design-concurrency-model": {
+          "name": "System Design Concurrency Model",
+          "description": "Concurrency Model",
+          "content": [
+            {
+              "id": "system-design-concurrency-model",
+              "title": "Concurrency Model",
+              "description": "Concurrency Model",
+              "repo": "prepguides/go-interviews",
+              "path": "patterns/README.md",
+              "type": "guide",
+              "status": "active",
+              "addedDate": "2025-10-13"
+            }
+          ]
+        }
+      }
     }
   },
   "statistics": {
-    "totalContent": 11,
+    "totalContent": 12,
     "totalVisualizations": 10,
-    "totalGuides": 1,
-    "categoriesWithContent": 3,
-    "lastContentAdded": "2025-01-27"
+    "totalGuides": 2,
+    "categoriesWithContent": 4,
+    "lastContentAdded": "2025-10-13"
   }
 }
\ No newline at end of file
diff --git a/index.html b/index.html
index dd261cf..b5fb7f0 100644
--- a/index.html
+++ b/index.html
@@ -938,7 +938,7 @@ <h3 class="category-title">Microservices</h3>
       <h3 class="category-title">System Design</h3>
       <p class="category-description">Scalability patterns, caching strategies, and architecture</p>
       <ul class="category-items">
-        <li><a href="#">Coming Soon</a></li>
+        <li><a href="system-design.html">All System Design Content (1 Available)</a></li><li><a href="template-md-renderer.html?repo=prepguides%2Fgo-interviews&path=patterns%2FREADME.md&category=system-design&subtopic=system-design-concurrency-model&title=Concurrency+Model">Concurrency Model</a></li>
       </ul>
     </div>
             </div><div class="quick-links">
diff --git a/system-design.html b/system-design.html
index 88e7806..d08fb8d 100644
--- a/system-design.html
+++ b/system-design.html
@@ -194,17 +194,15 @@ <h1>🏛️ System Design</h1>
         </header>
 
         <div class="content">
-            
-      <div class="coming-soon">
-        <h3>More System Design Content Coming Soon</h3>
-        <p>We're working on additional system design content including:</p>
-        <ul style="list-style: none; margin-top: 15px;">
-          <li>• Interactive visualizations</li>
-          <li>• Comprehensive guides</li>
-          <li>• Interview questions</li>
-          <li>• Best practices</li>
-        </ul>
-      </div>
+            <div class="algorithms-grid">
+            <div class="algorithm-card" onclick="window.location.href='template-md-renderer.html?repo=prepguides%2Fgo-interviews&path=patterns%2FREADME.md&category=system-design&subtopic=system-design-concurrency-model&title=Concurrency+Model'">
+              <h3 class="algorithm-title">Concurrency Model</h3>
+              <p class="algorithm-description">Concurrency Model</p>
+              <ul class="algorithm-features">
+                <li>Comprehensive guide and tutorial</li><li>Best practices and examples</li><li>Interview preparation focused</li><li>Practical implementation tips</li>
+              </ul>
+              <a href="template-md-renderer.html?repo=prepguides%2Fgo-interviews&path=patterns%2FREADME.md&category=system-design&subtopic=system-design-concurrency-model&title=Concurrency+Model" class="access-button">View Guide →</a>
+            </div></div>
         </div>
     </div>
 </body>