OCaml Observability with OpenTelmetry

Semgrep has significantly scaled their titular product written in OCaml, and telemetry has been a critical element in doing so. In this talk we want to first give a brief introduction to telemetry and how and when to use different types of telemetry. Next we will present on how to use different parts of the OCaml OpenTelemetry library, how we use them, and demo some real life examples. Finally we will cover how adding this telemetry has helped our business scale.