Designing and evolving system architecture is about making informed trade‑offs. This guide provides a practical, opinionated walkthrough of the core concepts, patterns, and decisions you need to build scalable, reliable, and cost‑efficient systems—plus answers to the most common questions engineers and architects ask.
Writing clean, readable code is essential for collaboration and maintainability. Linters and formatters help us keep our codebase consistent and easy to understand.
Version control is the foundation of reliable software delivery. This guide teaches Git from first principles, then layers in practical GitHub workflows used by high-performing teams. You’ll learn the mental models, the everyday commands, and the advanced tools to collaborate confidently without fear of breaking anything.
APIs are the connective tissue of modern products. This guide distills proven practices for API design, security, observability, and reliability—covering the most frequent questions and edge cases teams face in production. Examples use FastAPI and Pydantic v2, but the principles generalize to any stack.
New to APIs? This guide explains core concepts in clear language, then walks you through building a small FastAPI service with essential security and testing tips. When you’re ready for advanced patterns, read the companion: Designing Secure and Scalable APIs — A Comprehensive Guide.