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Technology

Cross-App Communication with RPC in Elixir

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.

Technology

Trace Decoration for Fun and Profit

Auto-instrumentation shows that something was slow. Decoration shows why. Learn to enrich OpenTelemetry spans with business context in Elixir.

Technology

Adversarial LLMs: AI v. AI

Treating an LLM as a trusted collaborator is a mistake. Treat it as a hostile witness instead. Challenge every assertion. Demand justification. And...

Technology

TIL: Haversine Calculations

Calculate the distance between two coordinates (points on a sphere) using the Haversine formula

Gearflow Updates

Why you need telemetry

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,...

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