Alexandros Mylonakis focused on enhancing the user experience in the cake_wallet repository by addressing a persistent issue with the currency input field. Using Flutter and Dart, he engineered a solution that preserves the cursor position during onChanged-driven updates to the TextEditingController, preventing unwanted text selection and ensuring smoother currency entry. This targeted bug fix improved the reliability of financial data entry and reduced user friction, particularly in mobile UI contexts. Although the work centered on a single bug rather than new features, Alexandros demonstrated depth in mobile development and UI problem-solving, delivering a maintainable, traceable improvement to the codebase.