diff --git a/.replit b/.replit
index 76d2fa09..5a7efd43 100644
--- a/.replit
+++ b/.replit
@@ -52,6 +52,10 @@ externalPort = 80
 localPort = 8044
 externalPort = 3003
 
+[[ports]]
+localPort = 35519
+externalPort = 3002
+
 [[ports]]
 localPort = 38557
 externalPort = 3000
diff --git a/client/components/Scene.tsx b/client/components/Scene.tsx
index c97e25e8..612900c5 100644
--- a/client/components/Scene.tsx
+++ b/client/components/Scene.tsx
@@ -1,9 +1,10 @@
 import { Canvas, useFrame, useThree } from "@react-three/fiber";
 import { Grid, OrbitControls, Text } from "@react-three/drei";
+import * as THREE from "three";
 import { MathUtils, Vector3 } from "three";
-import React, { useMemo, useRef, useState } from "react";
+import React, { useMemo, useRef, useState, useEffect } from "react";
 import { motion } from "framer-motion";
-import { useNavigate } from "react-router-dom";
+import { useNavigate, Link } from "react-router-dom";
 
 type Gateway = {
   label: string;
@@ -241,7 +242,145 @@ function SceneContent() {
   );
 }
 
+function FallbackUI() {
+  return (
+    <div
+      style={{
+        width: "100vw",
+        height: "100vh",
+        background: "linear-gradient(135deg, #030712 0%, #0f172a 50%, #1e1b4b 100%)",
+        display: "flex",
+        flexDirection: "column",
+        alignItems: "center",
+        justifyContent: "center",
+        fontFamily: "Inter, sans-serif",
+        color: "#e5e7eb",
+        padding: 20,
+      }}
+    >
+      <motion.div
+        initial={{ opacity: 0, y: -20 }}
+        animate={{ opacity: 1, y: 0 }}
+        transition={{ duration: 0.6 }}
+        style={{ textAlign: "center", marginBottom: 40 }}
+      >
+        <h1 style={{ fontSize: 48, fontWeight: 700, marginBottom: 8, letterSpacing: "0.05em" }}>
+          AeThex OS
+        </h1>
+        <p style={{ fontSize: 16, opacity: 0.7, letterSpacing: "0.1em" }}>
+          Select Your Realm
+        </p>
+      </motion.div>
+
+      <div
+        style={{
+          display: "grid",
+          gridTemplateColumns: "repeat(auto-fit, minmax(200px, 1fr))",
+          gap: 16,
+          maxWidth: 900,
+          width: "100%",
+        }}
+      >
+        {gateways.map((gw, i) => (
+          <motion.div
+            key={gw.label}
+            initial={{ opacity: 0, y: 20 }}
+            animate={{ opacity: 1, y: 0 }}
+            transition={{ duration: 0.4, delay: i * 0.1 }}
+          >
+            <Link
+              to={gw.route}
+              style={{
+                display: "block",
+                padding: "24px 20px",
+                borderRadius: 16,
+                border: `2px solid ${gw.color}40`,
+                background: `${gw.color}10`,
+                textDecoration: "none",
+                color: "#e5e7eb",
+                textAlign: "center",
+                transition: "all 0.3s ease",
+              }}
+              onMouseEnter={(e) => {
+                e.currentTarget.style.borderColor = gw.color;
+                e.currentTarget.style.transform = "translateY(-4px)";
+                e.currentTarget.style.boxShadow = `0 8px 30px ${gw.color}30`;
+              }}
+              onMouseLeave={(e) => {
+                e.currentTarget.style.borderColor = `${gw.color}40`;
+                e.currentTarget.style.transform = "translateY(0)";
+                e.currentTarget.style.boxShadow = "none";
+              }}
+            >
+              <div
+                style={{
+                  fontSize: 18,
+                  fontWeight: 600,
+                  letterSpacing: "0.1em",
+                  color: gw.color,
+                }}
+              >
+                {gw.label}
+              </div>
+            </Link>
+          </motion.div>
+        ))}
+      </div>
+
+      <motion.div
+        initial={{ opacity: 0 }}
+        animate={{ opacity: 1 }}
+        transition={{ duration: 0.6, delay: 0.5 }}
+        style={{ marginTop: 40 }}
+      >
+        <Link
+          to="/login"
+          style={{
+            padding: "12px 24px",
+            borderRadius: 10,
+            border: "1px solid #38bdf8",
+            background: "rgba(14, 165, 233, 0.12)",
+            color: "#e0f2fe",
+            fontWeight: 600,
+            textDecoration: "none",
+            backdropFilter: "blur(6px)",
+          }}
+        >
+          Connect Passport
+        </Link>
+      </motion.div>
+    </div>
+  );
+}
+
+function checkWebGLSupport(): boolean {
+  try {
+    const canvas = document.createElement("canvas");
+    const gl = canvas.getContext("webgl") || canvas.getContext("experimental-webgl");
+    return !!gl;
+  } catch {
+    return false;
+  }
+}
+
 export default function Scene() {
+  const [webglSupported, setWebglSupported] = useState<boolean | null>(null);
+  const [webglError, setWebglError] = useState(false);
+
+  useEffect(() => {
+    setWebglSupported(checkWebGLSupport());
+  }, []);
+
+  if (webglSupported === null) {
+    return (
+      <div style={{ width: "100vw", height: "100vh", background: "#030712" }} />
+    );
+  }
+
+  if (!webglSupported || webglError) {
+    return <FallbackUI />;
+  }
+
   return (
     <div
       style={{
@@ -299,6 +438,11 @@ export default function Scene() {
         shadows
         camera={{ position: [0, 3, 12], fov: 50, near: 0.1, far: 100 }}
         gl={{ antialias: true }}
+        onCreated={({ gl }) => {
+          gl.domElement.addEventListener("webglcontextlost", () => {
+            setWebglError(true);
+          });
+        }}
       >
         <SceneContent />
       </Canvas>
diff --git a/client/components/TitleBar.tsx b/client/components/TitleBar.tsx
index 362424e3..db68e46d 100644
--- a/client/components/TitleBar.tsx
+++ b/client/components/TitleBar.tsx
@@ -1,4 +1,4 @@
-import { useState } from "react";
+import { useState, CSSProperties } from "react";
 
 export default function TitleBar() {
   const [pinned, setPinned] = useState(false);
@@ -19,11 +19,12 @@ export default function TitleBar() {
         padding: "0 12px",
         background: "#050814",
         color: "#9ca3af",
+        // @ts-ignore - Electron-specific property
         WebkitAppRegion: "drag",
         borderBottom: "1px solid #0f172a",
         letterSpacing: "0.08em",
         fontSize: 12,
-      }}
+      } as CSSProperties}
     >
       <div style={{ fontFamily: "Space Mono, monospace" }}>AeThex Terminal</div>
       <div
@@ -31,8 +32,9 @@ export default function TitleBar() {
           marginLeft: "auto",
           display: "flex",
           gap: 8,
+          // @ts-ignore - Electron-specific property
           WebkitAppRegion: "no-drag",
-        }}
+        } as CSSProperties}
       >
         <button
           onClick={() => call("togglePin")}
diff --git a/replit.md b/replit.md
index bd200e54..ef98c8bc 100644
--- a/replit.md
+++ b/replit.md
@@ -142,6 +142,24 @@ https://supabase.aethex.tech/auth/v1/callback
   - `https://aethex.foundation/**`
   - `https://supabase.aethex.tech/auth/v1/callback`
 
+## Recent Changes (December 5, 2025)
+- ✅ **Electron Desktop App Support**: Added desktop application framework
+  - `electron/main.js` - Main Electron process with window management
+  - `electron/preload.js` - Secure IPC bridge for frontend communication
+  - `electron-builder.yml` - Build configuration for packaging
+  - `client/components/DesktopShell.tsx` - Desktop wrapper with title bar
+  - `client/components/TitleBar.tsx` - Custom title bar with pin/minimize/maximize/close
+  - `client/pages/Overlay.tsx` - File watcher overlay for development tools
+- ✅ **3D Scene Landing Page**: New immersive realm selector
+  - `client/components/Scene.tsx` - Three.js/React Three Fiber 3D scene
+  - Animated gateway meshes for each realm (Nexus, GameForge, Foundation, Labs, Corp)
+  - Camera rig with smooth transitions on realm selection
+  - WebGL fallback UI when 3D rendering isn't available
+- ✅ **Utility Services**: New backend services
+  - `services/pii-scrub.js` - PII scrubbing utility for privacy
+  - `services/watcher.js` - File watcher for development workflow
+- ✅ **TypeScript Fixes**: Fixed THREE namespace import and WebkitAppRegion typing
+
 ## Recent Changes (December 4, 2025)
 - ✅ **RealmSwitcher Alignment Fix**: Fixed realm IDs to match ARMS taxonomy
   - Old IDs (`game_developer`, `client`, `community_member`, `customer`) replaced with ARMS IDs (`labs`, `gameforge`, `corp`, `foundation`, `devlink`, `nexus`, `staff`)