diff --git a/agenda.html b/agenda.html
index c7f7716..d5fe5ca 100644
--- a/agenda.html
+++ b/agenda.html
@@ -176,6 +176,23 @@
     @media (max-width: 1024px) { .navigation-section a { margin: 0 0.8em; } }
     .navigation-section a:hover { color: #757575; }
 
+    /* Announcement Banner */
+    .announcement-banner {
+      background-color: #FFD02B;
+      text-align: center;
+      padding: 0.6em 1em;
+      font-family: var(--pico-font-family-monospace);
+      font-size: 16px;
+      color: #000000;
+      z-index: 99;
+      position: relative;
+    }
+    .announcement-banner a {
+      color: #000000;
+      font-weight: 700;
+      text-decoration: underline;
+    }
+
     /* Speakers Section - copied from index.html */
     .speakers-section {
       margin-top: -4em;
@@ -257,6 +274,10 @@
 </head>
 <body data-theme="dark">
   <main class="container">
+    <!-- Announcement Banner -->
+    <div class="announcement-banner">
+      &#127867; Nix &amp; Friends Happy Hour! RSVP to join us after Planet Nix &#8594; <a href="https://luma.com/gibr7uz9">Save your spot today</a>
+    </div>
     <!-- CFP Section (uncomment when CFP opens)
     <section class="cfp-section">
       <div class="cfp-callout">Call for Papers Open Now!</div>
diff --git a/index.html b/index.html
index ff80edd..a47a592 100644
--- a/index.html
+++ b/index.html
@@ -345,6 +345,23 @@
   color: #757575;
 }
 
+/* Announcement Banner */
+.announcement-banner {
+  background-color: #FFD02B;
+  text-align: center;
+  padding: 0.6em 1em;
+  font-family: var(--pico-font-family-monospace);
+  font-size: 16px;
+  color: #000000;
+  z-index: 99;
+  position: relative;
+}
+.announcement-banner a {
+  color: #000000;
+  font-weight: 700;
+  text-decoration: underline;
+}
+
 /* About Section */
 .about-section {
     position: relative;
@@ -782,6 +799,10 @@
 </head>
 <body data-theme="dark">
   <main class="container">
+    <!-- Announcement Banner -->
+    <div class="announcement-banner">
+      &#127867; Nix &amp; Friends Happy Hour! RSVP to join us after Planet Nix &#8594; <a href="https://luma.com/gibr7uz9">Save your spot today</a>
+    </div>
     <!-- CFP Section (uncomment when CFP opens)
     <section class="cfp-section">
       <div class="cfp-callout">Call for Papers Open Now!</div>
diff --git a/speakers.html b/speakers.html
index 9839f29..d308e83 100644
--- a/speakers.html
+++ b/speakers.html
@@ -176,6 +176,23 @@
     @media (max-width: 1024px) { .navigation-section a { margin: 0 0.8em; } }
     .navigation-section a:hover { color: #757575; }
 
+    /* Announcement Banner */
+    .announcement-banner {
+      background-color: #FFD02B;
+      text-align: center;
+      padding: 0.6em 1em;
+      font-family: var(--pico-font-family-monospace);
+      font-size: 16px;
+      color: #000000;
+      z-index: 99;
+      position: relative;
+    }
+    .announcement-banner a {
+      color: #000000;
+      font-weight: 700;
+      text-decoration: underline;
+    }
+
     /* Speakers Section - copied from index.html */
     .speakers-section {
       margin-top: -4em;
@@ -257,6 +274,10 @@
 </head>
 <body data-theme="dark">
   <main class="container">
+    <!-- Announcement Banner -->
+    <div class="announcement-banner">
+      &#127867; Nix &amp; Friends Happy Hour! RSVP to join us after Planet Nix &#8594; <a href="https://luma.com/gibr7uz9">Save your spot today</a>
+    </div>
     <!-- CFP Section (uncomment when CFP opens)
     <section class="cfp-section">
       <div class="cfp-callout">Call for Papers Open Now!</div>
