During November 2025, Diego focused on enhancing reliability and data integrity for multi-network Safe deployments in the safe-global/safe-wallet-web repository. He addressed a bug where the address book could reflect invalid networks by updating the onboarding flow to register only successful Safe deployments. Using React and TypeScript, Diego introduced a CreateSafeResult type to explicitly track per-network creation outcomes, ensuring that only valid networks are included in the address book. He also refined the createSafe logic and improved UI and state handling, which reduced inconsistency risks on the /welcome/accounts page and contributed to more maintainable multi-network onboarding processes.