Learn how we use Erlang's built-in RPC and EPMD to connect two Phoenix apps without HTTP overhead—and when this lightweight approach makes sense.
Auto-instrumentation shows that something was slow. Decoration shows why. Learn to enrich OpenTelemetry spans with business context in Elixir.
Auto-instrumentation gets you traces. Domain instrumentation and context propagation make them useful for debugging.
Treating an LLM as a trusted collaborator is a mistake. Treat it as a hostile witness instead. Challenge every assertion. Demand justification. And...
Calculate the distance between two coordinates (points on a sphere) using the Haversine formula
Telemetry is the raw signal that keeps you honest when your gut insists everything is fine. Observability is how you turn that signal into answers,...