A production notification log is useful only if it can reconstruct a failed delivery without turning every player action into permanent storage. For a small game service, the practical choice is a Node.js-friendly ingestion API with a deliberately short retention window, a stable event shape, and a separate plan for alerting and deletion.

The answer is operational, not fashionable.

The important distinction is between collecting events and operating an observability system. A logs endpoint can accept user activity and application events; it does not automatically provide alert rules, span-tree exploration, source-map decoding, session replay, or a GDPR deletion workflow.…