From the previous post on building NServiceBus metrics, I've pushed a new version of the NServiceBus.Extensions.Diagnostics and OpenTelemetry packages:

• NServiceBus.Extensions.Diagnostics NuGet
• NServiceBus.Extensions.Diagnostics ReadMe
• NServiceBus.Extensions.Diagnostics.OpenTelemetry NuGet
• NServiceBus.Extensions.Diagnostics.OpenTelemetry ReadMe

As before, the OpenTelemetry packages are just small wrappers around TracerBuilderProvider.