Worked on the basecamp/lexxy repository to deliver mobile-native toolbar support and editing enhancements, focusing on improving the mobile user experience and developer productivity. Leveraged JavaScript, Node.js, and React to modernize the editor architecture, introducing adapters to standardize native integration and reduce code coupling. Implemented features such as native dialogs, attachment handling, and improved language selection, while refining link node management for smoother editing workflows. Addressed stability by resolving selection edge cases and maintaining document structure during uploads. Established a robust build and test pipeline, updated assets and helpers, and aligned event contracts to support ongoing quality and future development.