During a two-month period, RustRuby focused on code quality and maintainability across several repositories, including cosmos-sdk and prysmaticlabs/prysm. They refactored custom min/max implementations in Go, adopting standard library functions to reduce duplication and clarify arithmetic semantics, particularly in integer and unsigned operations. In prysm, they simplified the Alignof function, further reducing code complexity. RustRuby also improved documentation and code comments in projects like elys-network/elys and ChainSafe/gossamer, correcting function references and enhancing readability. Their work, spanning Go and TypeScript, emphasized code cleanup, refactoring, and documentation improvement, resulting in more maintainable and consistent codebases without altering functionality.