Hld
System Design
Easy
SketchSync: Collaborative Digital Whiteboard
Design a real-time collaborative whiteboard application like Miro or FigJam for remote classrooms. It must support up to 500 concurrent users per board with sub-100ms latency for stroke visibility. The system should persist board states so users can return to them later.
Key concepts
websocketsconflict resolutionpub-sub
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