1. Using `yield_self` for composable ActiveRecord relations

  2. Renaming Cocaine to Terrapin

  3. Why Factories?

  4. Graceful Switching of Worker Processes

  5. factory_bot

  6. Access Ruby Hash Values with Fallbacks for Missing Data

  7. Debugging Why Your Specs Have Slowed Down

  8. A Crash Course in Analyzing Memory Usage in Ruby

  9. Tips for Using FactoryGirl Without an ORM

  10. Writing a Hypermedia API client in Ruby