Evan Moss developed a Generic Landmark Class transformation for the Hivemapper/odc-api repository, focusing on improving plugin consumer interoperability and data consistency. He designed and implemented logic in TypeScript to convert specific landmark types into a generic class, ensuring this transformation was applied uniformly across relevant API routes. By making these API design changes, Evan reduced the integration effort required for downstream plugins and improved data quality for consumer applications. His work emphasized robust backend development practices, with clear traceability from requirements to code through linked commits. The feature addressed plugin ecosystem needs and demonstrated thoughtful, maintainable engineering within a short timeframe.