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Observability

Datadog, New Relic, Prometheus, Grafana, OpenTelemetry — what to instrument, what to drop.

Datadog will happily charge you $80k/month for the ability to see what your services are doing. For most teams, a $20/month self-hosted Grafana + Prometheus + Loki + Tempo stack covers 90% of the value — if you're disciplined about cardinality.

These pieces lay out instrumentation patterns, retention strategies, and the boring operational truths nobody puts in their vendor pitch deck.

##Guides & Reviews