Sebastien integrated Zero Network support into the LedgerHQ/app-ethereum repository, embedding network information directly within the application to streamline user onboarding and network discovery. Using C and network programming skills, Sebastien designed a modular approach to handle network data, laying the foundation for scalable multi-network support in the future. This work reduced the need for manual configuration by enabling built-in network awareness, which aligns with business goals to expand network coverage and minimize setup friction. The implementation focused on maintainability and extensibility, ensuring that future network integrations can be added efficiently while maintaining robust interoperability across supported blockchain networks.