TL;DR — Figma Multiplayer

Design a real-time collaborative design tool like Figma where multiple designers can simultaneously edit the same canvas with objects, layers, and components. Unlike text collaboration (Google Docs), design collaboration operates on a 2D spatial canvas with complex objects (shapes, vectors, images, text, groups, component instances) that have dozens of properties each. Key features: Real-time multi-user editing on a shared canvas with live cursors. Create and manipulate vector shapes, text, images, and frames.