During October 2025, Goldlinker enhanced code quality and documentation across gin-gonic/gin, starkware-libs/cairo, and erigontech/erigon. In gin-gonic/gin, they improved test documentation by aligning function comments with actual test purposes, clarifying intent for future maintainers. For starkware-libs/cairo, they corrected a command-line help text typo and refined a comment to better describe pending implementation details, improving CLI usability. In erigontech/erigon, Goldlinker modernized code by replacing manual map-copying loops with Go 1.21’s maps.Copy, increasing readability and maintainability across several modules. Their work demonstrated practical application of Go and Rust, with a focus on refactoring, documentation, and testing.