Elixir supports the usual supects of observability. Open Telemetry (OTel), log handlers, capturing metrics. And it does it well. This post will mostly focus on the observability you have on the BEAM that is either incredibly rare to see elsewhere or possibly entirely unique. The previous posts on concurrency and resilience might give useful context around how processes work and how supervision trees are structured. I will try not to lean too heavily on them but if you feel the need to underst...
