Previously in Ruby Magic

1. #39 The Citadel Architecture at AppSignal
2. #38 Changing the Approach to Debugging in Ruby with TracePoint
3. #37 Facade Pattern in Rails for Performance and Maintainability
4. #36 Building a Rails App With Multiple Subdomains
5. #35 Getting Started With System Tests in Rails With Minitest
6. #34 Pros and Cons of Using structure.sql in Your Ruby on Rails Application
7. #33 Top 10 AppSignal Blog Posts in 2019
8. #32 Configurable Ruby Modules: The Module Builder Pattern
9. #31 Ruby Templating: Baking an Interpreter
10. #30 Type Checking in Ruby — Check Yo Self Before You Wreck Yo Self
11. #29 Digging Deeper into Ruby Templating: The Parser
12. #28 Brewing our own Template Lexer in Ruby
13. #27 Inside Enumeration in Ruby
14. #26 Ruby's Hidden Gems: Delegator and Forwardable
15. #25 Learning by building, a Background Processing System in Ruby
16. #24 Ruby's Hidden Gems, StringScanner
17. #23 Unraveling Classes, Instances and Metaclasses in Ruby
18. #22 Bindings and Lexical Scope in Ruby
19. #21 Fibers and Enumerators in Ruby: Turning Blocks Inside Out
20. #20 Building a Ruby C Extension From Scratch
21. #19 The Magic of Class-level Instance Variables
22. #18 Closures in Ruby: Blocks, Procs and Lambdas
23. #17 Changing the Way Ruby Creates Objects
24. #16 Ruby Magic Summer Special: The Best of AppSignal Academy
25. #15 Under the Hood: “Slurping” and Streaming Files in Ruby
26. #14 Ruby's magical Enumerable module
27. #13 Benchmarking Ruby Code
28. #12 Syntactic sugar methods in Ruby
29. #11 A look at how Ruby interprets your code
30. #10 Concurrency Deep Dive: Event loops
31. #09 Concurrency Deep Dive: Multi-threading
32. #08 Concurrency Deep Dive: Multi-process
33. #07 Running Rack: How Ruby HTTP servers run Rails apps
34. #06 Escaping characters in Ruby
35. #05 Building a 30 line HTTP server in Ruby
36. #04 Rescuing Exceptions in Ruby: A Primer
37. #03 Introduction to Garbage Collection (Part II)
38. #02 Introduction to Garbage Collection (Part I)
39. #01 Mastering Concurrency