Worked on the anza-xyz/agave repository to upgrade mnemonic generation and seed handling by migrating from the tiny-bip39 dependency to the canonical bip39 crate. This transition improved the reliability and security of seed phrase management while introducing enhancements for language handling and cross-locale compatibility. The work focused on aligning the codebase with upstream cryptography standards, reducing the risk of seed-related failures, and simplifying future maintenance. Utilized Rust for implementation, emphasizing secure cryptography practices and robust dependency management. The feature upgrade prepared the repository for production adoption, with attention to release readiness and improved support for multilingual environments.