- https://www.infoq.com/presentations/Simple-Made-Easy/
- Ruby on Rails and Costs https://m.signalvnoise.com/only-15-of-the-basecamp-operations-budget-is-spent-on-ruby/
- Hanami in Microservices - https://www.useo.pl/blog/2021/07/trying-hanami-in-microservices
- 
DDD and Hexagonal Architecture with Rails https://www.slideshare.net/dwhelan/domain-driven-design-and-hexagonal-srchitecture-with-rails 
- 
7 Ways to decompose fat activerecord models https://codeclimate.com/blog/7-ways-to-decompose-fat-activerecord-models/ 
- 
Refactoring with hexagonal Rail (with example) https://www.agileplannerapp.com/blog/building-agile-planner/refactoring-with-hexagonal-rails 
- 
How I Architected My Big Rails App for success 
- 
Building Complex Domains in Rails (DDD with Rails) https://speakerdeck.com/mikeabiezzi/build-complex-domains-in-rails 
- 
SOA (Service Oriented Architecture) without the tears 
- 
Rails 4 Engines 
- 
Books 
- Enterprise Rails
- Growing Rails Applications in Practice
- Check and optimize Rails https://github.com/rails/rails-perftest
- Test Code Coverage
- Arel doc: https://jpospisil.com/2014/06/16/the-definitive-guide-to-arel-the-sql-manager-for-ruby.html
- 
Ruby (Basic, Design Pattern, Refactor, Low Level...) - (Beginner) Well Grounded Rubybist - 3rd
- (Beginner - Middle) Practical Object-Oriented Design - 2nd
- (Beginner - Middle) TDD in Ruby
- (Beginner - Middle) Ruby Best Practices
- (Middle) Design Patterns in Ruby(2007)
- (Middle - Advance) Refactoring Ruby
- (Middle - Advance) Metaprograming Ruby
- (Advance) Ruby Under a Microscope
- (Advance) Ruby Performance Optimization
 
- 
Rails (Basic, Structure, Scalability...) - (Beginner) Learn Rails 5.2
- (Beginner) Rails 5 Test Prescriptions
- (Middle) Modular Rails - The complete guide
- (Middle) Service-Oriented Design with Ruby on Rails
- (Middle) Component Based Rails Applications
- (Advance) Lean Publishing Growing Rails Applications in Practice