Aljosa worked on the menloresearch/JanCode repository, delivering a feature that enables robust per-mode API configuration persistence. Using TypeScript and full stack development skills, Aljosa designed and implemented a migration to store API configurations specific to each operational mode, establishing default mappings to prevent misconfiguration. The technical approach involved updating initialization logic to manage a modeApiConfigs map, ensuring reliable configuration handling across modes. This work addressed the risk of manual errors and improved deployment stability by automating configuration management. The depth of the solution lays a foundation for future per-mode customization, reflecting thoughtful engineering in configuration management practices.