Archive
Short observations about building, operating, and maintaining useful systems.
Reliability often begins with a boundary: one component, one responsibility, and one place to inspect when behavior changes. Smaller systems do not remove complexity, but they make it possible to see where that complexity lives.
A familiar default is easier to test, document, and replace. Novelty should pay for itself by removing a constraint that actually exists, not by making a diagram more interesting.
A useful measurement separates the path into stages. Change one variable, record the result, and preserve a known route back. Most durable performance work is careful bookkeeping.