Ruby Central Courses

The Humble Hash

Explore Ruby's hash functionality, from basics to advanced techniques. Learn to leverage hashes for concise, performant code and discover surprising features of this versatile data structure.

• YouTube
• 32 minutes
• Self-Paced
• Conference Talk

Ractor Demonstration

Explore Ruby 3's Ractor feature for thread-safe concurrent programming. Learn its powers and limitations through interactive demonstrations with expert Koichi Sasada.

• YouTube
• 25 minutes
• Self-Paced
• Conference Talk

Demystifying the Ruby Package Ecosystem - RubyConf 2023

Explore the inner workings of Ruby's package ecosystem, from gem installation to debugging and security considerations in Rails applications.

• YouTube
• 35 minutes
• Self-Paced
• Free Video

Which Time Is It? A Graphical Tour of Time Concepts - RubyConf 2023

Explore the complexities of time in programming through a graphical tour, building intuition for time-related operations and avoiding subtle bugs in your Ruby code.

• YouTube
• 36 minutes
• Self-Paced
• Free Video

State of RubyGems - History, Current Status, and Future Roadmap

Explore Ruby Central's open source team, RubyGems' evolution, and future plans. Gain insights into project management for long-running open source initiatives.

• YouTube
• 35 minutes
• Self-Paced
• Free Video

Popping Into CRuby - Understanding Ruby's Instruction Sequences

Explore CRuby's inner workings, focusing on "popped" instruction sequences and how Ruby optimizes code execution. Gain insights into parsing, compiling, and abstract syntax trees for a deeper understanding of Ruby's performance.

• YouTube
• 27 minutes
• Self-Paced
• Free Video

Empathy in Action: Connecting with Coworkers and Consumers

Empowering actionable empathy in the workplace to enhance connections, consumer understanding, and office humanity.

• YouTube
• 45 minutes
• Self-Paced
• Free Video

Re-interpreting Data - Turning Files into Audio, Images, and Music

Explore unconventional data transformations using Ruby, turning files into audio, images, and music. Learn byte manipulation techniques while discovering creative ways to represent information.

• YouTube
• 45 minutes
• Self-Paced
• Free Video

Ruby Insights and Community Q&A - Keynote by Yukihiro Matsumoto

Matz shares insights into Ruby and answers community questions in this pre-recorded presentation, offering valuable perspectives on the language's development and future.

• YouTube
• 55 minutes
• Self-Paced
• Free Video

The Unbreakable Code Whose Breaking Won World War II - Enigma Machine Emulator in Ruby

Explore the Enigma machine's history and mechanics through an OOP-based Ruby emulator, uncovering WWII code-breaking secrets and drawing parallels to modern development patterns.

• YouTube
• 37 minutes
• Self-Paced
• Free Video

The Future of Understanding Ruby Code - Ruby 3.3 Parsing API

Explore the evolution of Ruby code parsing and the new unified API in Ruby 3.3, revolutionizing how developers understand and work with Ruby code.

• YouTube
• 40 minutes
• Self-Paced
• Free Video

The Secret Ingredient: How to Understand and Resolve Flaky Tests

Uncover the common thread in flaky tests and learn effective strategies to understand and resolve them, with a focus on overcoming Daylight Saving Time challenges in Ruby programming.

• YouTube
• 45 minutes
• Self-Paced
• Free Video

The Second Oldest Bug in Ruby - Fixing Large Argument Handling

Explore the history and resolution of a long-standing Ruby bug involving large argument lists, delving into stacks, heaps, and method dispatch improvements from Ruby 1.9 to 3.3.

• YouTube
• 44 minutes
• Self-Paced
• Free Video

Finding a Needle in the Haystack - Debugging Performance Issues

Strategies for debugging critical performance issues in Ruby, featuring profilers and a real-world case study from upgrading a large Rails application.

• YouTube
• 38 minutes
• Self-Paced
• Free Video

Lightning Talks at RubyConf 2023

Diverse, rapid-fire presentations on Ruby-related topics, offering quick insights and innovative ideas from multiple speakers in a single engaging session.

• YouTube
• 1 hour 48 minutes
• Self-Paced
• Free Video