engineering

Mix Releases for Zero-Surprise Deploys: What Ships Is What You Tested

A Mix release is a sealed artifact. Build it once, test it, ship the exact bytes to production. Here's the pipeline — and the three mistakes that make releases lie about what's running.

Apr 09, 2026 ·7 min

engineering

Observer in Production: The BEAM Introspection Nobody Talks About

:observer is the most underused debugging tool in the Elixir ecosystem. Attached to a running node, it shows you every process, every ETS table, every mailbox — live. Here's how to run it safely against prod.

Apr 09, 2026 ·6 min

engineering

GenServer Patterns for Production Systems

Battle-tested GenServer patterns covering state management, handle_continue, timeout strategies, Registry usage, and bottleneck avoidance in production Elixir systems.

Mar 10, 2026 ·12 min