Anycast, without the magic
What anycast actually routes, why it behaves differently from a load balancer, and the failure modes nobody mentions in the diagram.
Field notes · 2026
Field notes on the systems we build.
Short, practical write-ups about distributed systems, network plumbing, and the unglamorous tools that keep a small fleet honest.
What a reverse proxy actually buffers
A practical tour of request and response buffering, and why a 25-second poll can still be cut in half by a well-meaning default.
Small observability for small fleets
Four signals, one dashboard, and the discipline to ignore the rest until something is actually on fire.
About this notebook
Northline Notes is a personal engineering log. No tracking, no newsletter pop-ups, no growth funnel. Just notes that were useful enough to write down.