Worked on the AxaFrance/design-system repository to address cross-framework compatibility issues in the DebugGrid component. The solution involved extracting shared grid rendering logic into a new DebugGridCommon module, which isolated CSS and prevented conflicts between the LF and Apollo frameworks. This refactoring reduced code duplication and simplified ongoing maintenance, ensuring consistent DebugGrid behavior across different environments. The work was implemented in a single, well-documented commit and validated in both frameworks to minimize UI risk. The project utilized CSS, React, and TypeScript, focusing on frontend development practices to improve UI stability and maintainability while resolving a critical cross-framework bug.