Marc Cortadellas developed configurable width variants for side-positioned dialogs in the factorialco/factorial-one repository, enhancing the flexibility of the UI’s side panels. He updated the internal layout logic to support dynamic width settings for dialogs placed on the left or right, ensuring alignment with the design system and improving customization options for developers. Using React and TypeScript, Marc also revised documentation and Storybook stories to reflect these new capabilities, maintaining stability with no critical defects. His work focused on expanding front end adaptability, enabling faster design-to-implementation workflows while preserving consistency and reliability across the dialog component’s user interface.