OpenTelemetry
Pass otlp_endpoint into Nexus to export spans to OTLP/gRPC; otherwise traces go to the console.
Distributed tracing uses OpenTelemetry.
Configuration
Pass otlp_endpoint into Nexus(...) to export spans to OTLP/gRPC. If you omit it, traces are emitted to the console instead.
Consult the SDK reference for the exact constructor signature and any additional exporter options supported by your Aether version.