Nahian worked on the phidatahq/phidata repository, focusing on maintaining API compatibility by addressing a breaking change in the ExaTools integration. They removed the deprecated 'highlights' parameter from API calls to align with Exa API v2.0.0, which prevented invalid option errors and stabilized downstream workflows. Their approach included updating migration guidance and documentation to assist users in adapting to the new API version. Nahian validated the fix with unit testing and ensured code quality through formatting updates. This work demonstrated proficiency in Python, API development, and error handling, delivering a targeted solution that improved reliability for downstream users.