Courses

Learn Python asyncio from zero by building the event loop by hand. Six fetches go from 12 seconds to 3 on one thread, and you understand every line. Most asyncio tutorials throw async and await at you on page one. This course builds the event loop by hand first, in plain Python, so the keywords finally click. Six fetches drop from 12 seconds to 3, on one thread, and you understand every line. No magic. This interactive course has a companion book, Asyncio Without the Magic, on Leanpub at https://leanpub.com/asyncio . The book is the deep, cover-to-cover read; the course is where you make it stick with quizzes, build-it-yourself exercises, and runnable notebooks. They are built to be used together: read the idea in the book, then drill it in the course until it is yours. You get a lot from either one on its own, and the most by far from both together.

Go beyond basic tutorials and learn how to design, deploy, and defend production-grade environments. This comprehensive blueprint bridges the gap between system administration, network architecture, and proactive cybersecurity.Whether you are setting up robust server infrastructures, orchestrating enterprise networks, or integrating cutting-edge defense systems like Wazuh and Fortigate, this course provides the exact, hands-on steps needed to implement secure and highly available digital infrastructures. What you will master inside:• Advanced Systems & Server Administration• Secure Network Design & Routing Orchestration• Active Threat Monitoring & Infrastructure Defense Blueprints

Ever wondered how configuration libraries work under the hood?Most C++ courses teach you how to use libraries. But in this course, you'll build one—from scratch. You'll discover:Why header-only libraries are the gold standard for C++ distributionHow compile-time reflection with CRTP eliminates repetitive mapping codeWhy dot-notation makes nested JSON access elegant and intuitiveHow to provide crystal-clear error messages that save hours of debuggingAnd how to build a production-ready library that you can actually use in your projects No black boxes. No magic. Just C++23 at its best. By the end, you won't just know how to use a configuration library—you'll know exactly how it works, why it's designed that way, and how you can build your own. Ready to build your own typed JSON configuration library in modern C++?

This book takes you straight into the Compose compiler, runtime, and UI layer, all about Compose performance tuning, reading the source line by line and explaining the why behind every design decision, then connecting each internal mechanism back to the code you write every day. With four in-depth chapters, 40+ original diagrams, dozens of "In Practice" sections, and "Pro Tips for Mastery" sidebars, it turns Compose from a set of APIs you memorize into a system you can reason about from first principles, debug with confidence, and optimize with intent.

ChatGPT's memory. AI search. RAG. Recommendation engines. All of it stands on ONE idea — and almost nobody using AI actually understands it. This course takes you from absolute zero (no code, no math, no fees) to building your own AI search engine that finds things by meaning. In the age of AI, this is the line between people who prompt and people who build. Which side are you on?

A Cray Research veteran narrates how pioneers handled overwhelming complexity: pattern recognition anticipating Midway, systems thinking inventing magnetic core memory. Experience from one domain, applied in a new way, shaped supercomputing.

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.

Build a real AI assistant system with memory, tools, workflows, scheduling, and safety gates — not just prompts. Finish with a working Department Agent OS you can prove works.

Conveyor Failure Modes & Root Cause AnalysisMost conveyor failures don’t start as catastrophic events.They start small.A noisy idler. A slight belt drift. A minor splice crack. A small amount of belt scoring.Ignored long enough, those minor defects escalate into:• Longitudinal belt tears • Splice separation • Pulley slip and overheating • Structural damage • Major production downtime

Why Conveyor Fundamentals Matter Most recurring conveyor failures are rooted in misunderstood basics:• Incorrect belt tension • Poor loading geometry • Improper idler spacing • Weak structural alignment • Drive system mismatchWhen fundamentals are wrong, maintenance becomes reactive — and failures repeat.This module ensures you understand the mechanical logic behind conveyor behavior so that future reliability decisions are based on engineering principles, not guesswork.

To ace your next Android developer job interview, focus on truly understanding the concepts, not just memorizing answers, and practicing how to apply them. With over 250 quiz questions, 370 practical and follow-up questions with full answers, and 60+ pro tips, this course helps you sharpen skills, understand the why, and prepare for real-world technical challenges. ISBN: 979-8285926436

Takes you from "how to use Kotlin" into "how Kotlin really works," revealing internal implementations, demystifying bytecode and compiler behavior, and uncovering the internals that shape the language. With hands-on Code Playgrounds for immediate practice and 158 interactive assessments to test and reinforce your understanding, this course doesn't just show you why everything is the way it is, it challenges you to prove you've mastered it.  ISBN: 979-8243872744