Products

These days I'm building a hardware looper.

I also specialize in training intermediate and advanced programmers. These courses have all wrapped, but stick around below for posterity.

• Owning Rails Online Class

  The popular advanced Rails course that helped 1000+ developers level up. Learn to dive into Rails source to debug, explore, extend and master it.

• Neural Networks from Scratch Online Class

  An introduction to machine learning and neural networks. If you can read Ruby code, you can understand neural networks.

• Create Your Own Programming Language Ebook

  The book that helped create CoffeeScript and many other languages. The best system for creating your first programming language.

• The Great Code Club Online Course

  Build games, VMs, database engines, web frameworks, neural networks. Projects that land dream jobs or get you on conference stages.

• The Programming Language Masterclass Online Class

  Master your most important tool. Discover how JavaScript, Ruby, Python or Java work inside and learn to create your own.

• The Truth About Event Loops Online Class

  Master the internals of highly scalable server code. Do you really know when and why to use Node.js?

• Rebuilding a Web Server Free Online Class

  Learn how Unicorn, Puma, and Thin work by rebuilding a Ruby web server from scratch.