OpenTelemetry is just an API for instrumenting your software. For actually collecting and viewing your traces, you'll need an actual implementation -- Jaeger a

OpenTelemetry is just an API for instrumenting your software. For actually collecting and viewing your traces, you'll need an actual implementation -- Jaeger and Zipkin are some open source options. If you develop an open source project and one of your goals is "I sure wish my users could use Datadog instead of being forced to use an open source thing!" then OpenTelemetry is a project you should keep an eye on. The goal is to make the instrumentation agnostic to the underlying provider.