diff --git a/extensions/OpenInstagramSafariExtension.appex/Info.plist b/extensions/OpenInstagramSafariExtension.appex/Info.plist
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diff --git a/extensions/OpenInstagramSafariExtension.appex/OpenInstagramSafariExtension b/extensions/OpenInstagramSafariExtension.appex/OpenInstagramSafariExtension
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diff --git a/extensions/OpenInstagramSafariExtension.appex/_locales/en/messages.json b/extensions/OpenInstagramSafariExtension.appex/_locales/en/messages.json
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+++ b/extensions/OpenInstagramSafariExtension.appex/_locales/en/messages.json
@@ -0,0 +1,10 @@
+{
+    "extension_name": {
+        "message": "Open in Instagram",
+        "description": "The display name for the extension."
+    },
+    "extension_description": {
+        "message": "Opens instagram.com links (profiles, posts, reels, stories, tags) in the Instagram app.",
+        "description": "Description of what the extension does."
+    }
+}
diff --git a/extensions/OpenInstagramSafariExtension.appex/background.js b/extensions/OpenInstagramSafariExtension.appex/background.js
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diff --git a/extensions/OpenInstagramSafariExtension.appex/content.js b/extensions/OpenInstagramSafariExtension.appex/content.js
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+++ b/extensions/OpenInstagramSafariExtension.appex/content.js
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+// Redirect instagram.com web links into the native app.
+// Shipped inside RyukGram as a Safari web extension.
+
+(function () {
+    if (window.top !== window.self) return;
+    if (sessionStorage.getItem("__rygOpenedApp")) return;
+
+    function urlFromLocation() {
+        const path = window.location.pathname.split("/").filter(Boolean);
+        if (path.length === 0) return null;
+
+        if (path[0] === "p" || path[0] === "reel") {
+            const meta = document.querySelector("meta[property='al:ios:url']");
+            if (meta && meta.getAttribute("content")) return meta.getAttribute("content");
+            return path[1] ? `instagram://media?id=${path[1]}` : null;
+        }
+
+        if (path[0] === "stories" && path[1]) {
+            return `instagram://story?username=${path[1]}`;
+        }
+
+        if (path[0] === "explore" && path[1] === "tags" && path[2]) {
+            return `instagram://tag?name=${path[2]}`;
+        }
+
+        if (path.length === 1) {
+            return `instagram://user?username=${path[0]}`;
+        }
+
+        return null;
+    }
+
+    function openInApp() {
+        const target = urlFromLocation();
+        if (!target) return;
+        sessionStorage.setItem("__rygOpenedApp", "1");
+        window.location.href = target;
+    }
+
+    openInApp();
+})();
diff --git a/extensions/OpenInstagramSafariExtension.appex/images/icon-128.png b/extensions/OpenInstagramSafariExtension.appex/images/icon-128.png
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diff --git a/extensions/OpenInstagramSafariExtension.appex/images/toolbar-icon-16.png b/extensions/OpenInstagramSafariExtension.appex/images/toolbar-icon-16.png
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diff --git a/extensions/OpenInstagramSafariExtension.appex/images/toolbar-icon-19.png b/extensions/OpenInstagramSafariExtension.appex/images/toolbar-icon-19.png
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diff --git a/extensions/OpenInstagramSafariExtension.appex/images/toolbar-icon-38.png b/extensions/OpenInstagramSafariExtension.appex/images/toolbar-icon-38.png
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diff --git a/extensions/OpenInstagramSafariExtension.appex/images/toolbar-icon-48.png b/extensions/OpenInstagramSafariExtension.appex/images/toolbar-icon-48.png
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diff --git a/extensions/OpenInstagramSafariExtension.appex/images/toolbar-icon-72.png b/extensions/OpenInstagramSafariExtension.appex/images/toolbar-icon-72.png
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diff --git a/extensions/OpenInstagramSafariExtension.appex/manifest.json b/extensions/OpenInstagramSafariExtension.appex/manifest.json
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index 0000000..4107cb0
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+++ b/extensions/OpenInstagramSafariExtension.appex/manifest.json
@@ -0,0 +1,39 @@
+{
+    "manifest_version": 3,
+    "default_locale": "en",
+
+    "name": "__MSG_extension_name__",
+    "description": "__MSG_extension_description__",
+    "version": "1.0",
+
+    "icons": {
+        "48": "images/icon-48.png",
+        "96": "images/icon-96.png",
+        "128": "images/icon-128.png",
+        "256": "images/icon-256.png",
+        "512": "images/icon-512.png"
+    },
+
+    "background": {
+        "service_worker": "background.js"
+    },
+
+    "content_scripts": [{
+        "js": [ "content.js" ],
+        "matches": [ "*://*.instagram.com/*" ]
+    }],
+
+    "action": {
+        "default_popup": "popup.html",
+        "default_icon": {
+            "16": "images/toolbar-icon-16.png",
+            "19": "images/toolbar-icon-19.png",
+            "32": "images/toolbar-icon-32.png",
+            "38": "images/toolbar-icon-38.png",
+            "48": "images/toolbar-icon-48.png",
+            "72": "images/toolbar-icon-72.png"
+        }
+    },
+
+    "permissions": [ ]
+}
diff --git a/extensions/OpenInstagramSafariExtension.appex/popup.css b/extensions/OpenInstagramSafariExtension.appex/popup.css
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index 0000000..edf45a0
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+++ b/extensions/OpenInstagramSafariExtension.appex/popup.css
@@ -0,0 +1,22 @@
+:root {
+    color-scheme: light dark;
+}
+
+body {
+    width: 220px;
+    padding: 14px 16px;
+    margin: 0;
+    font-family: -apple-system, system-ui, sans-serif;
+    text-align: left;
+}
+
+.title {
+    font-size: 15px;
+    font-weight: 600;
+}
+
+.subtitle {
+    margin-top: 4px;
+    font-size: 12px;
+    opacity: 0.7;
+}
diff --git a/extensions/OpenInstagramSafariExtension.appex/popup.html b/extensions/OpenInstagramSafariExtension.appex/popup.html
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index 0000000..25d3f42
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+++ b/extensions/OpenInstagramSafariExtension.appex/popup.html
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+<!DOCTYPE html>
+<html>
+<head>
+    <meta charset="UTF-8">
+    <link rel="stylesheet" href="popup.css">
+    <script type="module" src="popup.js"></script>
+</head>
+<body>
+    <div class="title">Open in RyukGram</div>
+    <div class="subtitle">instagram.com links open in the app.</div>
+</body>
+</html>
diff --git a/extensions/OpenInstagramSafariExtension.appex/popup.js b/extensions/OpenInstagramSafariExtension.appex/popup.js
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