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feat: add production-grade meta tags for SEO and link sharing
Added comprehensive meta tag coverage: - Open Graph for WhatsApp, LinkedIn, Facebook, iMessage, Discord - Twitter/X large image card - Apple iOS home screen and status bar config - Android/Chrome theme color and PWA name - Windows msapplication tile config - X-Frame-Options + CSP for iframe security - Schema.org JSON-LD structured data for Google rich results
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index.html

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<!-- ─── PRIMARY SEO ──────────────────────────────────────────── -->
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<title>ZethraOS — AI-Native Self-Healing Mobile OS</title>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>ZethraOS — The AI-Native Self-Healing OS</title>
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<meta name="description" content="Beyond Android: An AI-native, privacy-first mobile OS built on Linux. ZethraOS redefines mobile computing with autonomous self-healing, Rust-first memory safety, and privacy by design." />
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<meta name="theme-color" content="#020c1b" />
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<!-- Open Graph -->
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<meta property="og:title" content="ZethraOS — The AI-Native Self-Healing OS" />
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<meta property="og:description" content="Beyond Android: An AI-native, privacy-first mobile OS built on Linux." />
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<meta property="og:image" content="zethraos_cover.jpeg" />
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<meta name="description" content="Beyond Android. A Rust-first, privacy-centric mobile OS built on Linux — powered by ZethraAI, the world's first autonomous self-healing engine for mobile." />
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<meta name="keywords" content="ZethraOS, AI mobile OS, self-healing OS, Linux mobile, Rust OS, privacy OS, Android alternative, ZethraAI" />
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<meta name="author" content="ZethraOS" />
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<meta name="robots" content="index, follow" />
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<link rel="canonical" href="https://zethraos.com" />
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<!-- ─── OPEN GRAPH (WhatsApp, LinkedIn, Facebook, iMessage) ──── -->
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<meta property="og:type" content="website" />
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<meta property="og:site_name" content="ZethraOS" />
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<meta property="og:url" content="https://zethraos.com" />
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<!-- Fonts -->
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<meta property="og:title" content="ZethraOS — AI-Native Self-Healing Mobile OS" />
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<meta property="og:description" content="Beyond Android. A Rust-first, privacy-centric mobile OS built on Linux — powered by ZethraAI, the world's first autonomous self-healing engine for mobile." />
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<meta property="og:image" content="https://zethraos.com/zethraos_cover.jpeg" />
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<meta property="og:image:secure_url" content="https://zethraos.com/zethraos_cover.jpeg" />
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<meta property="og:image:type" content="image/jpeg" />
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<meta property="og:image:width" content="1200" />
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<meta property="og:image:height" content="630" />
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<meta property="og:image:alt" content="ZethraOS — The AI-Native Self-Healing Mobile OS" />
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<meta property="og:locale" content="en_US" />
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<!-- ─── TWITTER / X CARD ──────────────────────────────────────── -->
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<meta name="twitter:card" content="summary_large_image" />
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<meta name="twitter:site" content="@ZethraOS" />
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<meta name="twitter:creator" content="@ZethraOS" />
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<meta name="twitter:url" content="https://zethraos.com" />
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<meta name="twitter:title" content="ZethraOS — The AI-Native Self-Healing Mobile OS" />
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<meta name="twitter:description" content="Beyond Android. Rust-first, privacy-centric, autonomous. Powered by ZethraAI — the world's first self-healing engine for mobile." />
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<meta name="twitter:image" content="https://zethraos.com/zethraos_cover.jpeg" />
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<meta name="twitter:image:alt" content="ZethraOS — AI-Native Self-Healing Mobile OS" />
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<!-- ─── iOS / APPLE ────────────────────────────────────────────── -->
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<meta name="apple-mobile-web-app-capable" content="yes" />
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<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
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<meta name="apple-mobile-web-app-title" content="ZethraOS" />
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<link rel="apple-touch-icon" href="ZethraOS_logo.png" />
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<!-- ─── ANDROID / CHROME ──────────────────────────────────────── -->
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<meta name="theme-color" content="#020c1b" />
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<meta name="mobile-web-app-capable" content="yes" />
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<meta name="application-name" content="ZethraOS" />
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<!-- ─── WINDOWS / MICROSOFT ───────────────────────────────────── -->
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<meta name="msapplication-TileColor" content="#020c1b" />
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<meta name="msapplication-TileImage" content="ZethraOS_logo.png" />
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<meta name="msapplication-config" content="none" />
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<!-- ─── IFRAME / EMBED CONTROL ───────────────────────────────── -->
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<meta http-equiv="X-Frame-Options" content="SAMEORIGIN" />
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<meta http-equiv="Content-Security-Policy" content="frame-ancestors 'self'" />
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<!-- ─── SCHEMA.ORG STRUCTURED DATA (Google rich results) ─────── -->
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<script type="application/ld+json">
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{
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"@context": "https://schema.org",
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"@type": "SoftwareApplication",
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"name": "ZethraOS",
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"url": "https://zethraos.com",
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"logo": "https://zethraos.com/ZethraOS_logo.png",
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"image": "https://zethraos.com/zethraos_cover.jpeg",
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"description": "Beyond Android. A Rust-first, privacy-centric mobile OS built on Linux powered by ZethraAI — the world's first autonomous self-healing engine for mobile.",
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"applicationCategory": "OperatingSystem",
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"operatingSystem": "Linux",
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"offers": { "@type": "Offer", "price": "0", "priceCurrency": "USD" },
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"license": "https://www.apache.org/licenses/LICENSE-2.0",
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"sameAs": [
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"https://github.com/ZethraOS",
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"https://www.linkedin.com/company/zethraos/",
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"https://www.instagram.com/ZethraOS/"
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],
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"author": {
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"@type": "Organization",
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"name": "ZethraOS",
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"url": "https://zethraos.com"
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}
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}
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</script>
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<!-- ─── FONTS ──────────────────────────────────────────────────── -->
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<link rel="preconnect" href="https://fonts.googleapis.com" />
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<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
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<link href="https://fonts.googleapis.com/css2?family=Orbitron:wght@400;600;700;900&family=Syne:wght@300;400;500;600&family=JetBrains+Mono:wght@300;400&display=swap" rel="stylesheet" />
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<style>
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/* ─── TOKENS ─────────────────────────────────────────────── */
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:root {

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