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In his presentation at RubyKaigi 2023, Genadi Samokovarov entitled "RuboCop's Baddest Cop," explores the nuances of Ruby syntax, particularly focusing on the handling of method call parentheses. He shares insights from his experience working at ForTax, where he developed and refined stylistic conventions in their Ruby codebase, affectionately dubbed the 'Bulgarian style.' Main topics include:

- **Documenting Engineering Practices**: Emphasis on the need for clear documentation in remote-first environments, particularly in the context of coding standards.
- **Ruby on Rails**: Discussion of the use of Ruby on Rails in ForTax’s product suite while highlighting the adoption of new Ruby features.
- **Code Style Guidance**: Samokovarov discusses their approach to Ruby style, including automated style checks using RuboCop, which initially lacked rules tailored to their specific syntax needs.
- **Development of Custom RuboCop Cop**: He provides details on developing a custom RuboCop cop to enforce their unique style rules regarding the use of parentheses in method calls. This included creating flexibility for parentheses requirements while addressing edge cases and ensuring code clarity.
- **Complexity of Parentheses Use**: The talk delves into scenarios where parentheses are obligatory and instances where they may be omitted, illustrating the challenges that arise from ambiguous situations in Ruby syntax.
- **Evolution of Ruby Syntax Handling**: The presentation concludes with a discussion on how Ruby's syntax has evolved, particularly with the release of Ruby 3.1, which introduced more flexible rules around value emissions and method call formatting.

In summary, Samokovarov emphasizes maintaining readability and consistent code style in a flexible environment, showcasing how coding standards can evolve through collaborative efforts in a remote setting while solving cultural and technical challenges in code reviews. His insights provide actionable strategies for developers looking to improve their coding practices and standards enforcement through tools like RuboCop.

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