Writing on engineering, delivery, quality, and the systems behind reliable products.

An unexpected email quota alert led to a wider security review. Here is what I found, what I changed, and what I learned from the process.

Observability is not just about production support. It is part of modern software delivery, helping teams understand behaviour, spot risk early, and keep learning after release.

Unit, integration, and end-to-end tests all serve different purposes. The key is knowing what each is for, where it adds value, and who should own it.