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Zero to observability in a Java app: OpenTelemetry agent, Prometheus, and Grafana Tempo

September 2025 — adding real observability to a Java service without touching a line of application code Logs tell you something happened. Metrics tell you how often.

Your IoT sensors deserve proper observability: MQTT to Prometheus with a Helm chart

May 2024 — because your home produces data worth keeping Smart home devices generate a constant stream of data. Temperature readings, power consumption, motion events, CO₂ levels, humidity.

My thermostat was lying to me

October 2023 — on why your heating system’s sensor is probably wrong, and what to do about it The floor heating in my house had a problem I couldn’t immediately identify.