Update index.md

Author: Futurecomputers8

index.md

@@ -10,14 +10,13 @@ description: "Computers 2030–2040: quantum revolution, brain-computer interfac
 </div>
 
 <div class="posts-grid">
-  {% assign sorted_posts = site.posts | reverse %}
+  {% assign sorted_posts = site.posts | where: "show_on_home", true | reverse %}
   {% for post in sorted_posts %}
-    {% assign first_image = post.content | split:'src="' | slice:1 | first | split:'"' | first %}
 
     <article class="post-card">
       <a href="{{ post.url }}">
         <div class="post-thumb-wrapper">
-          <img src="{{ first_image }}" alt="{{ post.title }}" class="post-thumb">
+          <img src="{{ post.cover }}" alt="{{ post.title }}" class="post-thumb">
         </div>
         <div class="post-info">
           <h2>{{ post.title | split: ". " | last }}</h2>
@@ -26,9 +25,10 @@ description: "Computers 2030–2040: quantum revolution, brain-computer interfac
         </div>
       </a>
     </article>
+
   {% endfor %}
 </div>
 
 <div class="made-with">
   <p>All images • Full offline • No tracking • Built December 2025</p>
-</div>
+</div>