What I learn on Friday nights.

A practical tutorial for using AI and large language models in your personal and work life. Covers LLM fundamentals, prompting techniques, tools, use cases, limitations, and practical workflows.

A guide to Microsoft Azure, from first login to production-ready cloud architecture. Covers compute, storage, networking, databases, identity, serverless, DevOps, monitoring, and the Well-Architect…

A tutorial on building an interpreted programming language from scratch using Rust. You will build Lux, a dynamically-typed, interpreted language with functions, closures, control flow, a REPL, and…

A curriculum covering the foundational concepts of computer science, equivalent to an undergraduate CS degree. Spans 18 modules from discrete math and programming fundamentals through data structur…

A practical C++ tutorial for working programmers who want to get productive in modern C++. Covers tooling, memory management, OOP, modern C++ (C++11 through C++23), the STL, build systems, and best…

Protecting yourself, your family, and your data in the digital world. Covers passwords, authentication, phishing, malware, privacy, and incident response.

A practical tutorial on relational databases using PostgreSQL, from your first query to running them in production. Covers SQL, schema design, indexing, transactions, query performance, and when to…

A practical tutorial to get you productive with Elixir for building scalable, fault-tolerant applications. Covers functional programming, OTP, Ecto, Phoenix, and testing.

From concept to manufactured product. Learn ESP32 development with practical, hands-on tutorials covering hardware, firmware, protocols, and manufacturing.

A practical tutorial on Git, from your first commit to rebasing, recovery, and everyday team workflows. Covers the commit graph, branching, remotes, history rewriting, internals, workflows, and the…

A practical tutorial to get you productive with Go for backend development, CLI tools, and cloud-native applications. Covers fundamentals, concurrency, testing, and the standard library.

A practical tutorial series on the Hugging Face ecosystem: what it is, how to use it, and how to go from browsing models to shipping real AI workflows. Covers the Hub, core libraries, fine-tuning,…

A guide to mastering Kibana, the visualization and exploration tool for Elasticsearch data.

A practical tutorial on LangGraph, the graph-based framework for stateful LLM applications, using Python and Claude. Covers state graphs, tool-calling agents, persistence, human-in-the-loop, stream…

A practical guide to Python programming, from basics to productive code. Covers syntax, data structures, OOP, the standard library, and idiomatic patterns.

A practical tutorial for setting up Raspberry Pi systems, building software on top of them, and turning ideas into reliable projects. Covers hardware choice, Linux operations, GPIO and sensors, ser…

A practical tutorial to get you productive with Rust for building reliable and efficient software. Covers ownership, traits, error handling, concurrency, and the Cargo ecosystem.

A practical tutorial on designing backend systems that survive scale and failure. Covers the building blocks (load balancers, caches, queues, databases), scaling patterns, consistency and consensus…

A practical course for building secure, lightweight desktop and mobile-ready apps with web technologies and Rust using Tauri.

A practical tutorial on Terraform using AWS, from your first apply to running it in production with CI/CD and policy checks. Covers HCL, state, modules, remote backends, environments, testing, the…

A practical tutorial for running machine learning models on microcontrollers and edge devices. Covers data collection, model training, quantization, TensorFlow Lite Micro deployment, and on-device…

A practical tutorial on tmux, from your first session to the scripting and configuration that turn a terminal into a persistent, shareable workspace. Covers sessions, windows, panes, copy mode, con…

A practical tutorial on Vim, from modes and motions to the editing habits that make the editor feel like an extension of your hands. Covers the modal model, text objects, registers and macros, buff…

A practical tutorial for designing and building web interfaces that are clear, fast, accessible, and conversion-focused.

A practical tutorial on WebAssembly using Rust, covering browser and server-side use. Walks through the WAT text format, linear memory, JS interop with wasm-bindgen, wasm-pack, WASI, server runtime…

A full course on WSO2, covering everything from basics to production deployments across API management, integration, and identity.

Master color theory to create visually appealing, accessible, and effective digital interfaces.

A tutorial covering the fundamentals of industrial design, from concept to production-ready products.

A practical tutorial on developing taste and aesthetic literacy across disciplines. Covers how taste is built, looking carefully, aesthetic principles that travel, vocabulary for what you see, the…

A reference for creating effective user interfaces, covering foundational principles, visual design, accessibility, research, and testing.

Master the essential design styles and aesthetics that shape modern web design, from minimalism to glassmorphism.

A practical course to help you write clearly, confidently, and effectively in English.

A practical tutorial on writing as the primary interface of modern work. Covers why writing eats more of the workday than ever, how to write for yourself, teams, the public, and AI, how to structur…

Master the silent language of nonverbal communication to enhance your personal and professional effectiveness.

A guide to effective communication in personal life and business.

A complete guide to not just surviving but thriving in the corporate world. The playbook others learn through years of trial and error.

A practical tutorial on distribution and audience building for founders, creators, and anyone shipping something into the world. Covers channel selection, owned vs rented audiences, content as dist…

Master the art of communicating clearly, confidently, and persuasively in any situation.

Leading people, building teams, and multiplying your effectiveness through others.

A practical guide to thriving in midlife: health, relationships, money, purpose, and the wisdom that matters. Essential knowledge for men in their 40s.

The art and science of reaching agreements that serve your interests while maintaining relationships.

Building and maintaining professional and personal relationships.

A practical tutorial for communicating effectively with audiences of any size. Covers fear management, structure, storytelling, delivery, slides, audience reading, Q&A, and continuous improvement.

A guide to selling effectively regardless of medium or product.

A practical tutorial on running daily standups that teams actually find useful. Covers formats, communication, team culture, blockers, remote and async setups, anti-patterns, and advanced techniques.

A practical tutorial on the civilizational question the next 10 to 20 years are asking: whether increasingly capable AI becomes powerful and aligned, whether benefits concentrate or distribute, whe…

The skill of thinking clearly, evaluating claims, and reaching well-reasoned conclusions in a world of noise.

Frameworks, mental models, and practices for making better choices.

A practical guide to building good habits, breaking bad ones, and designing systems for lasting change.

A practical course on generating, validating, and launching business ideas that customers actually want.

A practical tutorial on memory techniques for everyday life: names, numbers, vocabulary, speeches, and study material. Covers encoding, memory palaces, mnemonic systems, active recall, spaced repet…

Practical wisdom from humanity's greatest thinkers for living a good life.

Understanding human behavior, motivation, and the mind: the foundation for understanding yourself and others.

Car maintenance, repairs, and being an informed vehicle owner.

Essential cooking skills, techniques, and recipes for everyday meals.

Home maintenance, repairs, and improvements: practical skills for homeowners.

Essential medical knowledge for emergencies: life-saving skills everyone should have.

Growing food, landscaping, and connecting with nature through cultivation.

Personal notes on fasting, finances, freelancing, fitness, and more.

A practical tutorial covering the fundamentals of mechanical engineering, from basic principles to applied analysis. Covers statics, dynamics, mechanics of materials, thermodynamics, fluid mechanic…

Understanding food, fuel, and eating for health, performance, and longevity.

Raising children with intention: development, discipline, and building strong humans.

A practical tutorial on raising children when the future genuinely cannot be predicted. Covers what transfers across every possible future (character, autonomy, relationships, adaptability, meaning…

A practical guide to surviving emergencies, disasters, and apocalyptic scenarios. Covers both urban and wilderness survival from basic preparedness to long-term strategies.

A practical tutorial on the biology and biotech essentials, aimed at non-biologists who want to read the field with clear eyes. Covers cells, the central dogma, genes, proteins, genetics, evolution…

Understanding how the economy works and how it affects your life.

A practical tutorial on the physical systems that modern life runs on: electricity grids, water and sanitation, transportation, telecom, and the supply chains behind them. Aimed at non-specialists…

Understanding history to make sense of the present and navigate the future.

Building wealth through markets: understanding investing principles, asset classes, and portfolio construction.

Essential legal knowledge every adult should understand.

A practical tutorial on how online marketplaces work, from the two-sided model to the operational decisions that decide whether a marketplace survives its first year. Covers liquidity, matching, pr…

A practical mathematics course covering the essential skills you need for everyday life, financial decisions, and business competency.

Managing your money day-to-day: budgeting, debt, taxes, insurance, and the financial foundation that makes everything else possible.

Understanding how the world works through scientific principles.

A practical course to get you conversationally competent in German quickly.

A practical course to get you conversationally competent in Spanish quickly.

A practical tutorial on algorithms and data structures using Python. Covers Big-O, sorting, searching, hashing, linked lists, trees, graphs, dynamic programming, greedy, divide-and-conquer, and the…