In July 2025, Song implemented granular wallet transaction tracking for the getlago/lago-go-client repository, focusing on enhancing the WalletTransaction struct by adding a TransactionStatus field in Go. This targeted change enabled more detailed visibility into transaction states, supporting improved reconciliation, analytics, and diagnostics for wallet flows. Song aligned the update with existing API patterns to maintain consistency and future extensibility, demonstrating proficiency in Go development and collaborative code review practices. The work addressed a specific need for finer-grained transaction monitoring, resulting in a maintainable and extensible solution that deepened the client’s analytics capabilities without introducing unnecessary complexity or bugs.