Igor worked on the gobitfly/eth2-beaconchain-explorer project, focusing on stabilizing multi-client subscription filtering and improving UI clarity for the reth Ethereum client. He addressed backend logic in Go to ensure the isValidSubscriptionFilter function accurately recognized the reth client, enhancing the reliability of client-based subscriptions. On the frontend, Igor refined the HTML interface by removing ambiguous 'N/A' placeholders, resulting in a clearer user experience. His work targeted operational reliability and reduced user confusion in multi-client environments. Over the month, Igor applied both backend and frontend development skills, delivering targeted bug fixes that improved data accuracy and UI feedback without introducing new features.