Yzalvin developed a feature for the actualbudget/actual repository that adds category group information to transaction CSV exports, enhancing the utility of exported data for users reviewing financial transactions. Working primarily with TypeScript and focusing on back end development, Yzalvin collaborated across teams, as reflected in co-authored commits and clear commit messaging. The technical approach centered on extending the CSV export logic to include additional metadata, supporting improved analytics and faster decision-making for finance and product teams. The work was delivered without major bugs, prepared for QA, and demonstrated a methodical, feature-oriented development process with attention to collaboration and traceability.