In April 2025, Inromualdo enhanced the medic/cht-user-management repository by developing a TTL-based caching system for remote places, focusing on data freshness and backend efficiency. Leveraging Node.js and node-cache, he implemented cache expiry with a check period and refactored the caching logic to support proper invalidation. His approach included safeguards against redundant concurrent fetches for the same key, addressing potential performance bottlenecks. By updating the add and clear methods to align with the new strategy, he ensured coherent cache management. This work demonstrated depth in backend development, API integration, and caching, resulting in improved data consistency and reduced server load.