Over a two-month period, Diego Santos focused on maintainability and modularity across the sigp/lighthouse and ssvlabs/ssv repositories. He refactored the VoluntaryExit domain computation in Lighthouse by extracting the get_domain logic into a public Rust function, enabling broader reuse and reducing code duplication for signing workflows. In ssv, Diego improved code health by removing unused Go functions, streamlining the codebase. He also enhanced documentation in Lighthouse, clarifying late block re-organization concepts to support user onboarding and network stability. His work emphasized code cleanup, refactoring, and clear documentation, demonstrating depth in Rust, Go, and cryptography within production systems.