the engineering
notebook.

The biggest go-live in history rode on a single weather forecast

Your RAG bot is confidently wrong and you will not notice until a customer calls

The hidden cost of microservice boundaries: a five-year retrospective

Building production AI agents with stateful graph orchestration

Postgres at the edge: rethinking primary keys for global writes

LLMs in PHP: integrating language models into production systems without rewriting everything

The Singleton trap: global state, PHP-FPM workers, and the pattern that aged poorly

Factory Method: the pattern nobody needs until they need it for everything

Ansible beyond the tutorial: idempotency, drift detection, and the playbook that saved a 3am incident

Finite state machines in PHP: modelling order lifecycle without the spaghetti

The Bridge pattern: separating what you send from how you send it

PHP references: the footgun that ships faster than you think

Design patterns in production: what they solve, what they cost, and when to skip them