Aina Georges enhanced concurrency support in the oxcaml/oxcaml repository by implementing a reader-writer lock and expanding the capsule API to enable safe, scalable shared data access. Using OCaml and C, Aina introduced new APIs, map_shared and extract_shared, which allow controlled concurrent manipulation of capsule data. The technical approach focused on concurrency control and system programming, with comprehensive tests developed to ensure correctness and thread-safety. This work addressed the need for robust multi-threaded capabilities, laying a solid foundation for future concurrent features. The depth of the implementation reflects careful attention to both API design and practical concurrency challenges.