diff --git a/public/trash/bigbrother/index.html b/public/trash/bigbrother/index.html
index ac06ce4..ee57c9b 100644
--- a/public/trash/bigbrother/index.html
+++ b/public/trash/bigbrother/index.html
@@ -1,10 +1,10 @@
 <!doctype html>
 <html lang="ko">
 <meta charset="utf-8">
-<title>bigbrother — MJPEG Viewer (minimal)</title>
+<title>bigbrother — WebRTC Viewer (H.264)</title>
 
 <body>
-<h3>bigbrother — MJPEG Viewer</h3>
+<h3>bigbrother — WebRTC Viewer</h3>
 
 <label>Device ID:
   <input id="deviceId" placeholder="예: Q3F…(26자 Base32)" size="40">
@@ -13,12 +13,12 @@
 <button id="btnDisconnect">Disconnect</button>
 <br><br>
 
-<img id="view" alt="MJPEG stream will appear here" />
+<video id="view" playsinline autoplay muted controls style="max-width: 100%; background: #000;"></video>
 <pre id="log" style="white-space:pre-wrap;"></pre>
 
 <script>
 const logEl = document.getElementById('log');
-const imgEl = document.getElementById('view');
+const videoEl = document.getElementById('view');
 const deviceIdEl = document.getElementById('deviceId');
 const signalingURL = 'wss://signaling.damhw.ee/ws/client';
 const iceServers = [
@@ -28,32 +28,17 @@ const iceServers = [
 
 let ws = null;
 let pc = null;
-let dc = null;
 let sess = null;
-let key = null;
+let remoteStream = null;
 
 function log(...args){ logEl.textContent += args.join(' ') + '\n'; }
 function sleep(ms){ return new Promise(r=>setTimeout(r,ms)); }
 
-async function ensureSW() {
-  if (!('serviceWorker' in navigator)) throw new Error('Service Worker 미지원 브라우저');
-  const reg = await navigator.serviceWorker.register('./sw.js', {scope: './'});
-  await navigator.serviceWorker.ready;
-  // 활성/컨트롤 보장
-  if (!navigator.serviceWorker.controller) {
-    // 새로고침 1회 필요할 수 있음. 최대한 기다려본다.
-    await sleep(300);
-  }
-}
-
 async function connect() {
   const deviceId = deviceIdEl.value.trim();
   if (!deviceId) { alert('DeviceID를 입력하세요'); return; }
   localStorage.setItem('bb_device_id', deviceId);
 
-  await ensureSW();
-  key = (crypto.randomUUID && crypto.randomUUID()) || String(Date.now())+Math.random();
-
   ws = new WebSocket(signalingURL);
   ws.onopen = async () => {
     log('[ws] open');
@@ -66,34 +51,17 @@ async function connect() {
       log('[ws] accepted, sess=', sess);
 
       pc = new RTCPeerConnection({iceServers});
-      // 우리가 DataChannel을 먼저 만들어 SDP에 포함
-      dc = pc.createDataChannel('mjpeg');
-      dc.binaryType = 'arraybuffer';
+      // 수신 전용 비디오 트랜시버 추가하여 원격 트랙 협상
+      pc.addTransceiver('video', {direction: 'recvonly'});
 
-      dc.onopen = () => log('[dc] open');
-      dc.onclose = () => log('[dc] close');
-      dc.onmessage = (e) => {
-        if (typeof e.data === 'string') {
-          try {
-            const j = JSON.parse(e.data);
-            if (j.t === 'hdr') {
-              // 헤더 수신 → SW에 스트림 시작 알림 후 <img src> 설정
-              navigator.serviceWorker.controller && navigator.serviceWorker.controller.postMessage({
-                type:'start', key, status: j.status, headers: j.headers
-              });
-              imgEl.src = '/mjpeg?key=' + encodeURIComponent(key);
-              log('[dc] header received. content-type:', (j.headers && j.headers['Content-Type']) || (j.headers && j.headers['content-type']));
-            } else if (j.t === 'eof') {
-              navigator.serviceWorker.controller && navigator.serviceWorker.controller.postMessage({type:'eof', key});
-              log('[dc] eof');
-            } else if (j.t === 'error') {
-              log('[dc] error:', j.msg);
-            }
-          } catch(_) {}
+      remoteStream = new MediaStream();
+      videoEl.srcObject = remoteStream;
+      pc.ontrack = (e) => {
+        log('[pc] ontrack kind=', e.track.kind);
+        if (e.streams && e.streams[0]) {
+          videoEl.srcObject = e.streams[0];
         } else {
-          // 바이너리 청크 → SW로 전달
-          const chunk = e.data; // ArrayBuffer
-          navigator.serviceWorker.controller && navigator.serviceWorker.controller.postMessage({type:'chunk', key, chunk}, [chunk]);
+          remoteStream.addTrack(e.track);
         }
       };
 
@@ -123,11 +91,10 @@ async function connect() {
 }
 
 function disconnect() {
-  if (imgEl) imgEl.src = '';
-  if (dc){ try{ dc.close(); }catch{} dc=null; }
+  if (videoEl) { try{ videoEl.pause(); }catch{} videoEl.srcObject = null; }
   if (pc){ try{ pc.close(); }catch{} pc=null; }
   if (ws){ try{ ws.close(); }catch{} ws=null; }
-  sess = null; key = null;
+  sess = null; remoteStream = null;
   log('[*] disconnected');
 }
 
