Worked on the status-im/status-mobile repository to deliver a core improvement to Group Chat functionality by enforcing a 20-participant limit and updating the user interface to display the current member count in the Manage Members header. This feature was implemented using ClojureScript and React Native, leveraging the Re-frame framework to manage state and UI updates efficiently. The approach focused on aligning with product constraints to enhance data integrity and user experience, preventing users from exceeding group size limits and reducing confusion. The work demonstrated attention to both backend logic and frontend clarity, contributing to more reliable and user-friendly mobile chat flows.