Telemetry events emitted by Belay:

• [:belay, :job, :start] — measurements: %{system_time}; metadata: %{job, name}
• [:belay, :job, :stop] — measurements: %{duration} (native units); metadata: %{job, name, state}
• [:belay, :job, :exception] — metadata: %{job, name, kind, reason, stacktrace}

Attach the bundled logger for structured one-line logs:

Belay.Telemetry.attach_default_logger(:info)