Marcin developed a revenue and fees adapter for the Lazy Summer Protocol within the DefiLlama/dimension-adapters repository, focusing on backend development and smart contract interaction using TypeScript. The adapter was designed to fetch active fleet commanders and accurately calculate revenue distributions, addressing the need for precise revenue tracking within the protocol. Marcin integrated the solution with existing adapter scaffolding and data pipelines, ensuring compatibility and maintainability. By enabling accurate revenue attribution and improved visibility across dashboards and downstream consumers, the work provided clear business value. The project demonstrated depth in API integration and protocol-specific logic, though it was limited to a single feature.