eslint-config-xo provides a highly opinionated ESLint configuration based on the XO JavaScript style guide, ensuring clean and consistent code across projects. It extends recommended ESLint rules with XO's stricter settings, promoting modern JavaScript practices and preventing common errors. This configuration helps developers maintain a uniform coding style, improves code readability, and reduces potential bugs, leading to a more maintainable codebase. It's ideal for projects aiming for a standardized and professional coding environment.