Worked on the LedgerHQ/ledger-app-database repository to establish foundational Babylon Vault configuration initialization and consistency, focusing on both the main application and the Babylon Vault Testnet. Leveraged configuration management and data structure design skills to standardize vault parameters, enabling predictable startup behavior and supporting new vault functionalities. Integrated vault-related features using JSON, ensuring reliable environments for testing and quality assurance. The work emphasized maintainable code by applying lint improvements, contributing to overall code quality. This effort laid the groundwork for future vault integration, improved onboarding efficiency, and enhanced the reliability of vault-related operations across different deployment environments.