Realtime Code Editor
Monaco + Socket.io for fast collaborative editing
The editor is optimized for speed: lazy-loaded Monaco, diff-style updates, buffered persistence, and room presence all work together so the interface feels immediate on desktop and mobile.
Lazy-loaded editor to protect Core Web Vitals on marketing pages
One-click Copy Code action with mobile-friendly clipboard support
Presence count and anonymous display names to show active collaborators
Language selector plus owner-level room controls