Worked on the sillsdev/web-xforge repository to address a critical issue in the Lynx Text Model, focusing on the correctness of data-to-editor delta transformations. Using Angular, TypeScript, and Quill.js, implemented a fix ensuring that text insertions and modifications occur at the correct indices, directly resolving a bug that affected editor fidelity. The approach included renaming interfaces and services to better reflect their roles in data-editor model conversion, which improved code clarity and maintainability. This targeted engineering effort enhanced the reliability of rich text editing and streamlined future debugging for delta synchronization scenarios, demonstrating careful attention to technical detail.