Worked on the status-im/nimbus-eth1 repository, focusing on backend and API development using Nim. Addressed a bug in the getPayloadBodiesByRangeV1 function, refining the payload retrieval logic to prevent over-fetching and ensure accurate upper bound and block filtering. This fix improved the reliability and efficiency of payload synchronization by reducing unnecessary CPU and memory usage. The approach involved adjusting loop conditions to strictly adhere to the specified range, resulting in more precise data handling. Over the course of the month, contributed to the stability of the codebase by enhancing the correctness of payload retrieval without introducing new features.