state syncintermediateProduct Hunt maker Q&A stream (repeated pricing/pain questions)MAX
Schema Evolution Breaking In-Flight Sync Payloads : Presence and Ephemeral State at Scale
KotlinProtobufPostgreSQLSchema Registry
Problem Breakdown
The scaling defect is treating ephemeral presence (cursors, viewports, typing indicators) with the same per-message fidelity as durable data: presence has no correctness requirement (a stale cursor is harmless) but an extreme message-volume requirement, and applying durable-data semantics to it wastes an order of magni…
The full blueprint needs the Max ($59 lifetime) plan
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