During August 2025, contributed to the shopware/meteor repository by developing a resizable sidebar feature aimed at enhancing UI and UX flexibility. The implementation introduced an optional resizing configuration, controlled via a feature flag to ensure backward compatibility and maintain codebase stability. TypeScript and JavaScript were used to deliver the front-end functionality, while Markdown was employed to update the API documentation, clearly outlining the new resizable parameter. All changes were carefully aligned with referenced issues to improve traceability and onboarding for future contributors. The work focused on both user interface development and comprehensive documentation, emphasizing maintainability and clear communication.