engineering

Telemetry-First Observability: Events Before Dashboards

Dashboards built without a telemetry contract lie. Telemetry built without a consumer is overhead. Here's how Prismatic wires :telemetry events into a coherent observability story across 94 umbrella apps.

Apr 09, 2026 ·7 min

engineering

Telemetry to Prometheus: The Pipeline You Stop Writing Once You Get It Right

`:telemetry` events → `Telemetry.Metrics` definitions → Prometheus exporter → Grafana. Four steps, three libraries, one rule: the metrics list is the API.

Apr 09, 2026 ·6 min

engineering

Building an Error Intelligence Pipeline in Elixir

How we built PatternTracker, ErrorFeedLive, and a real-time error deduplication system with PubSub streaming for production visibility.

Mar 20, 2026 ·9 min

engineering

Telemetry-Driven Development: Observability from Day One

How to build observable Elixir systems using :telemetry from the start, covering event design, span patterns, custom metrics, and the OTEL doctrine pillar.

Mar 14, 2026 ·10 min