state syncadvancedProduct Hunt launch comment stream (recurring complaints)MAX
Cursor and Presence State Flooding in Real-Time Collaboration : Merge Correctness Under Concurrent Mutation
TypeScriptWebRTCDurable ObjectsProtobuf
Problem Breakdown
The root defect is that mutation is allowed concurrently from multiple writers while correctness is deferred to a merge step that was never designed with domain semantics in mind. Presence channels (cursors, selections, viewport positions) broadcast at input-event frequency; a 20-participant document generates thousand…
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