Rubocop is a code-style linter based on the Ruby style guide. The purpose of this workshop is to provide you with an understanding of the practical usage of Rubocop and its importance. Also, it will explain how to configure Rubocop to meet your needs. This will include changing the default style of a specific cop, disabling a specific cop, and maintaining code quality once the configuration is complete. Further discussion will focus on improving code quality in legacy code bases using the Rubocop TODO Approach. The final step is to analyze how HackerRank has improved its code quality over the past year to see how the above-mentioned things can be applied to real-life situations.