Worked on the apache/nuttx repository, focusing on enhancing the stability and correctness of the NFS file system driver using C programming and file system development expertise. Addressed a critical bug by correcting pointer handling for files opened in append mode, ensuring the file pointer accurately reflects the end-of-file position. Additionally, improved the read pointer progression after file attribute reads, which prevents data parsing errors and reduces the risk of data corruption for NFS clients. These targeted changes increased data integrity and reliability in append and write scenarios, demonstrating a careful approach to low-level file system and NFS protocol maintenance.