// 4️⃣ Show presence (optional) doc.on('presence', (users) => console.log('Connected users:', users); ); </script> </head> <body> <h1>rctd444 – Real‑Time Collaboration in Action</h1> <textarea id="editor" rows="12" cols="80"></textarea> </body> </html>
Despite extensive research, the exact origin of RCTD444 remains unclear. There are several theories, however: rctd444