diff --git a/frontend/src/components/layout/GitHubStarBanner.css b/frontend/src/components/layout/GitHubStarBanner.css
new file mode 100644
index 0000000..79d0c0e
--- /dev/null
+++ b/frontend/src/components/layout/GitHubStarBanner.css
@@ -0,0 +1,87 @@
+.gh-star-banner {
+  position: fixed;
+  bottom: 28px;
+  right: 28px;
+  z-index: 9999;
+  display: flex;
+  align-items: flex-start;
+  gap: 14px;
+  background: #1e2228;
+  border: 1px solid #3c4049;
+  border-radius: 12px;
+  padding: 16px 18px;
+  width: 320px;
+  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.55);
+  animation: gh-banner-in 0.3s cubic-bezier(0.16, 1, 0.3, 1);
+}
+
+@keyframes gh-banner-in {
+  from {
+    opacity: 0;
+    transform: translateY(20px) scale(0.97);
+  }
+  to {
+    opacity: 1;
+    transform: translateY(0) scale(1);
+  }
+}
+
+.gh-star-banner__icon {
+  color: #e3b341;
+  flex-shrink: 0;
+  margin-top: 1px;
+}
+
+.gh-star-banner__body {
+  flex: 1;
+  min-width: 0;
+}
+
+.gh-star-banner__body strong {
+  display: block;
+  color: #e1e4e8;
+  font-size: 14px;
+  font-weight: 600;
+  margin-bottom: 5px;
+}
+
+.gh-star-banner__body p {
+  color: #8b949e;
+  font-size: 12.5px;
+  line-height: 1.45;
+  margin: 0 0 12px;
+}
+
+.gh-star-banner__btn {
+  display: inline-block;
+  background: #e3b341;
+  color: #1b1f23;
+  font-size: 13px;
+  font-weight: 700;
+  padding: 6px 14px;
+  border-radius: 6px;
+  text-decoration: none;
+  transition: background 0.15s ease;
+  letter-spacing: 0.01em;
+}
+
+.gh-star-banner__btn:hover {
+  background: #f0c860;
+}
+
+.gh-star-banner__close {
+  background: none;
+  border: none;
+  color: #6e7681;
+  cursor: pointer;
+  font-size: 14px;
+  line-height: 1;
+  padding: 0;
+  flex-shrink: 0;
+  margin-top: 1px;
+  transition: color 0.15s ease;
+}
+
+.gh-star-banner__close:hover {
+  color: #e1e4e8;
+}
diff --git a/frontend/src/components/layout/GitHubStarBanner.tsx b/frontend/src/components/layout/GitHubStarBanner.tsx
new file mode 100644
index 0000000..de81943
--- /dev/null
+++ b/frontend/src/components/layout/GitHubStarBanner.tsx
@@ -0,0 +1,39 @@
+import React from 'react';
+import './GitHubStarBanner.css';
+
+const GITHUB_URL = 'https://github.com/davidmonterocrespo24/velxio';
+
+interface Props {
+  onClose: () => void;
+}
+
+export const GitHubStarBanner: React.FC<Props> = ({ onClose }) => (
+  <div className="gh-star-banner" role="dialog" aria-label="Star Velxio on GitHub">
+    <div className="gh-star-banner__icon">
+      {/* GitHub logo */}
+      <svg width="30" height="30" viewBox="0 0 24 24" fill="currentColor" aria-hidden="true">
+        <path d="M12 0C5.37 0 0 5.37 0 12c0 5.31 3.435 9.795 8.205 11.385.6.105.825-.255.825-.57 0-.285-.015-1.23-.015-2.235-3.015.555-3.795-.735-4.035-1.41-.135-.345-.72-1.41-1.23-1.695-.42-.225-1.02-.78-.015-.795.945-.015 1.62.87 1.845 1.23 1.08 1.815 2.805 1.305 3.495.99.105-.78.42-1.305.765-1.605-2.67-.3-5.46-1.335-5.46-5.925 0-1.305.465-2.385 1.23-3.225-.12-.3-.54-1.53.12-3.18 0 0 1.005-.315 3.3 1.23.96-.27 1.98-.405 3-.405s2.04.135 3 .405c2.295-1.56 3.3-1.23 3.3-1.23.66 1.65.24 2.88.12 3.18.765.84 1.23 1.905 1.23 3.225 0 4.605-2.805 5.625-5.475 5.925.435.375.81 1.095.81 2.22 0 1.605-.015 2.895-.015 3.3 0 .315.225.69.825.57A12.02 12.02 0 0 0 24 12c0-6.63-5.37-12-12-12z" />
+      </svg>
+    </div>
+
+    <div className="gh-star-banner__body">
+      <strong>Enjoying Velxio?</strong>
+      <p>
+        A ⭐ on GitHub helps more developers discover the project — it only takes 2 seconds!
+      </p>
+      <a
+        href={GITHUB_URL}
+        target="_blank"
+        rel="noopener noreferrer"
+        className="gh-star-banner__btn"
+        onClick={onClose}
+      >
+        ⭐ Star on GitHub
+      </a>
+    </div>
+
+    <button className="gh-star-banner__close" onClick={onClose} aria-label="Dismiss">
+      ✕
+    </button>
+  </div>
+);
diff --git a/frontend/src/pages/EditorPage.tsx b/frontend/src/pages/EditorPage.tsx
index f8614a4..99d68b1 100644
--- a/frontend/src/pages/EditorPage.tsx
+++ b/frontend/src/pages/EditorPage.tsx
@@ -20,6 +20,7 @@ import { Oscilloscope } from '../components/simulator/Oscilloscope';
 import { AppHeader } from '../components/layout/AppHeader';
 import { SaveProjectModal } from '../components/layout/SaveProjectModal';
 import { LoginPromptModal } from '../components/layout/LoginPromptModal';
+import { GitHubStarBanner } from '../components/layout/GitHubStarBanner';
 import { useSimulatorStore } from '../store/useSimulatorStore';
 import { useOscilloscopeStore } from '../store/useOscilloscopeStore';
 import { useAuthStore } from '../store/useAuthStore';
@@ -68,6 +69,46 @@ export const EditorPage: React.FC = () => {
   const [bottomPanelHeight, setBottomPanelHeight] = useState(BOTTOM_PANEL_DEFAULT);
   const [saveModalOpen, setSaveModalOpen] = useState(false);
   const [loginPromptOpen, setLoginPromptOpen] = useState(false);
+  const [showStarBanner, setShowStarBanner] = useState(false);
+
+  // ── GitHub star prompt (show once: 2nd visit OR after 3 min) ──────────────
+  useEffect(() => {
+    const STAR_KEY = 'velxio_star_prompted';
+    const VISITS_KEY = 'velxio_editor_visits';
+    const FIRST_VISIT_KEY = 'velxio_editor_first_visit';
+    const THREE_MIN = 3 * 60 * 1000;
+
+    if (localStorage.getItem(STAR_KEY)) return;
+
+    // Increment visit counter
+    const visits = parseInt(localStorage.getItem(VISITS_KEY) ?? '0', 10) + 1;
+    localStorage.setItem(VISITS_KEY, String(visits));
+
+    // Record timestamp of first visit
+    if (!localStorage.getItem(FIRST_VISIT_KEY)) {
+      localStorage.setItem(FIRST_VISIT_KEY, String(Date.now()));
+    }
+    const firstVisit = parseInt(localStorage.getItem(FIRST_VISIT_KEY)!, 10);
+
+    // Show immediately on second+ visit
+    if (visits >= 2) {
+      setShowStarBanner(true);
+      return;
+    }
+
+    // Otherwise schedule after the 3-minute mark
+    const elapsed = Date.now() - firstVisit;
+    const delay = Math.max(0, THREE_MIN - elapsed);
+    const timer = setTimeout(() => {
+      if (!localStorage.getItem(STAR_KEY)) setShowStarBanner(true);
+    }, delay);
+    return () => clearTimeout(timer);
+  }, []);
+
+  const handleDismissStarBanner = () => {
+    localStorage.setItem('velxio_star_prompted', '1');
+    setShowStarBanner(false);
+  };
   const [explorerOpen, setExplorerOpen] = useState(true);
   const [explorerWidth, setExplorerWidth] = useState(EXPLORER_DEFAULT);
   const [isMobile, setIsMobile] = useState(() => window.matchMedia(`(max-width: ${MOBILE_BREAKPOINT}px)`).matches);
@@ -348,6 +389,7 @@ export const EditorPage: React.FC = () => {
 
       {saveModalOpen && <SaveProjectModal onClose={() => setSaveModalOpen(false)} />}
       {loginPromptOpen && <LoginPromptModal onClose={() => setLoginPromptOpen(false)} />}
+      {showStarBanner && <GitHubStarBanner onClose={handleDismissStarBanner} />}
     </div>
   );
 };
diff --git a/frontend/src/pages/LandingPage.tsx b/frontend/src/pages/LandingPage.tsx
index fd4ae17..98606f7 100644
--- a/frontend/src/pages/LandingPage.tsx
+++ b/frontend/src/pages/LandingPage.tsx
@@ -450,11 +450,13 @@ export const LandingPage: React.FC = () => {
       <section className="landing-hero">
         <div className="hero-left">
           <h1 className="hero-title">
-            Emulate Hardware.<br />
-            <span className="hero-accent">In your browser.</span>
+            Simulate Arduino,<br />
+            ESP32 &amp; Raspberry Pi.<br />
+            <span className="hero-accent">And 16 more boards in your browser..</span>
           </h1>
           <p className="hero-subtitle">
-            Write, compile, and simulate 17+ boards across 5 CPU architectures — no hardware, no cloud, no limits. Real emulation running entirely on your machine.
+            Write code, compile, and run on 19 real boards — Arduino Uno, ESP32, ESP32-C3,
+            Raspberry Pi Pico, Raspberry Pi 3, and more. No hardware, no cloud, no limits.
           </p>
           <div className="hero-ctas">
             <Link to="/editor" className="cta-primary">
@@ -479,7 +481,7 @@ export const LandingPage: React.FC = () => {
         <div className="section-header">
           <span className="section-label">Supported Hardware</span>
           <h2 className="section-title">Every architecture.<br />One tool.</h2>
-          <p className="section-sub">17 boards across 5 CPU architectures — AVR, ARM, RISC-V, Xtensa, and Linux. All running locally, no cloud needed.</p>
+          <p className="section-sub">19 boards across 5 CPU architectures — AVR8, ARM Cortex-M0+, RISC-V, Xtensa, and Linux. All running locally, no cloud needed.</p>
         </div>
 
         {/* ── AVR8 · avr8js ────────────────────────────────────────── */}