This is a placeholder for the full deep-dive on building notification systems at scale.
Key topics to cover in the final post:
- Fan-out-on-write vs fan-out-on-read
- Delivery guarantees (at-most-once, at-least-once, exactly-once patterns)
- Idempotency and deduplication strategies
- Backpressure, batching, and throttling
- Multi-channel delivery and retry semantics
(Full article generated by the automation will replace this placeholder when the generator runs successfully.)