Shana focused on backend reliability improvements for the samvera/hyrax repository, addressing a concurrency issue in the chunked upload workflow. She resolved a race condition that affected file uploads in multi-process environments by reading file size directly from the file handle, rather than relying on potentially outdated cache attributes. To further enhance data integrity, she replaced a system-level sync command with Ruby’s IO#fsync, ensuring that file chunks were reliably flushed to disk. Drawing on her skills in backend development, concurrency, and file handling with Ruby, Shana’s work improved upload robustness and data consistency for end users, demonstrating careful attention to detail.