Modern, cloud-native, distributed systems require observability to function. Implementing observability can be challenging, however -- it requires high quality data, and quite a bit of it. OpenTelemetry solves this problem by providing a vendor-agnostic telemetry library to generate traces, metrics, and logs from applications and resources. In this talk, you'll learn about how OpenTelemetry works in practice, get some tips on implementing it in Go projects, and discover how it aids in your observability strategy.