Computers and Programming

Clean, Hexagonal, Onion—one dependency rule, three names. Walk a runnable multi-module SaaS billing service in Scala 3 and ZIO: a pure domain ring, ports and use cases in the middle, PostgreSQL + Flyway + JDBC and a thin HTTP shell on the outside—with full source in the PDF, not truncated snippets. See how ZLayer at the composition root keeps one repository for the whole graph, how webhook idempotency stays on the right side of the boundary, and how munit and zio-test (plus optional Docker) prove the architecture you intend to defend in code review.

Event-Driven Architecture with Spring Boot 4.x and Kafka 4.x is a hands-on, code-first guide to building resilient, scalable systems with real-world patterns like CQRS, event sourcing, sagas, outbox, idempotency, schema evolution, observability, and testing. Each chapter focuses on one concept and backs it with practical trade-offs, failure modes, and runnable Spring Boot projects you can clone and run today. If you want to move beyond buzzwords and actually ship event-driven systems that hold up in production, this book is for you.

The ultimate guide for software architects. Master the 'Configuration over Programming' philosophy and accelerate your PHP development with Ragnos and Artificial Intelligence.

Why did FORTRAN matter? Why did COBOL survive? Why did JavaScript take over the browser? Why does Rust feel necessary now? This book answers those questions by following the problems that forced languages into existence.

A 1986 text adventure game written inside the Cray I/O Subsystem turns out to be architecturally isomorphic to modern transformer design. This capstone volume uses the playable game and its assembly language source as a case study in constraint-based design, including the bare metal thinking we stopped teaching around 1995.

AI is an amplifier. It magnifies whatever engineering discipline — or lack of it — already exists, which means the bottleneck was never AI's capability; it is the collaboration space you design around it. This book is a six-level progression from early AI panic to sovereign engineering: the discipline of designing the environment in which human and artificial intelligence produce work worth keeping. It moves past prompting into the practices that compound — verification, habitat engineering, specification-first development, and the platform discipline that scales the practice across teams. The habitat is yours to design. Let's build it well.

What was so unusual and special about Cray Research? We accomplished, repeatedly, what nobody else on the planet was able to match. High-Performance Computing is not merely parallelism and large-scale systems. That is the public-facing decoy version.

Most code generation is about saving time.This book is about eliminating entire categories of errors.Instead of writing code first, you define the system—its data, its flow, and its structure—and generate the implementation deterministically. No hidden behavior. No runtime frameworks. No guesswork.If you care about building systems that remain understandable years later, this approach changes how you think about software.

Don't waste your time to learn how to code. That's what AI is here for. This book focuses on the far more profound question: What to code? This is the new meta skill between now and 2030!

Stop writing builder boilerplate by hand. The bon crate generates compile-time-checked builders in Rust with a single annotation — and this cookbook shows you exactly how to use it, recipe by recipe.

The Calculus of Optimality is a technical manual dedicated to the precise execution of optimization. It provides a structured, step-by-step working methods for investigating functions, moving from foundational principles to advanced multivariate constraints.This guide is designed for those who seek a reliable protocol to identify and classify extremal points in complex mathematical systems.

A hands-on guide to building, scheduling, and deploying data pipelines with Apache Airflow 2.x from scratch to AWS MWAA production deployment.