Francico Zanatta worked on the gleam-lang/stdlib repository, focusing on improving the consistency of Base64 foreign function interface APIs across Erlang and JavaScript implementations. He delivered a targeted refactor that standardized FFI function names, ensuring that both languages followed the same naming conventions without altering existing functionality. This work emphasized code consistency and refactoring, reducing future maintenance risks and making the standard library’s API surface clearer for contributors. By aligning the FFI design and improving cross-language interoperability, Francico enhanced the maintainability of the codebase and streamlined onboarding for new developers, demonstrating strong attention to code hygiene and technical detail.