YAML is the dominant format for config files — Kubernetes, Docker Compose, GitHub Actions and more. This post explains how YAML works and when to choose it over JSON.
Kafka and RabbitMQ solve different problems. This post breaks down the log vs queue mental model, shows when each tool wins, and gives you an opinionated decision guide.
OpenAPI is the machine-readable contract behind modern API documentation, client SDKs, contract tests and now AI agent tools — here is what changed in the latest version.
The terminal feels like a black box until the mental model clicks. This post explains the Linux filesystem, shell, permissions, pipes and processes — no cheatsheet needed.
You know git add and git commit. Here is what GitHub actually adds for SAP developers — Issues, Actions, Pages and built-in security scanning, explained end to end.
GraphQL and REST solve different problems. This is a clear, opinionated framework for choosing between them — no fence-sitting, no 'it depends', just real decision criteria.
Kubernetes manages containers at scale — but most explanations skip the mental model. This post explains clusters, pods, deployments and self-healing in plain English.
Unit, integration and end-to-end tests each catch different bugs. This post explains what each one checks, why the ratio matters, and how it maps to SAP SIT and UAT phases.
Systems that wait to be asked are request-driven. Systems that react to what happens are event-driven. This post explains event-driven architecture — events vs commands vs queries, pub/sub patterns, event brokers like Kafka and SAP Event Mesh, and when this approach makes sense versus when it does not.
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