Rolaman Buss developed a TVL Calculation Adapter for Hako within the DefiLlama-Adapters repository, enabling accurate USD total value locked computations for managed assets and enhancing dashboard reporting. He implemented this feature using Go and JavaScript, focusing on API integration and financial calculations to align with the existing adapter framework. Earlier, in the NilFoundation/nil repository, he refactored the indexer startup workflow by simplifying error handling, directly returning errors to improve code clarity and reduce propagation risks. His work demonstrated a methodical approach to backend development, addressing both feature expansion and maintainability through targeted, well-scoped engineering solutions over a two-month period.