During October 2025, Stemlaud focused on enhancing code quality and maintainability across several open-source repositories, including kaiachain/kaia, filecoin-project/lotus, and erigontech/erigon. Stemlaud refactored blockchain state management in Go by replacing manual map copying with the standard library’s maps.Copy, reducing the risk of subtle bugs and improving readability. Across projects like Lotus, Rollkit, and Rotki, Stemlaud improved documentation and code comments, addressing grammar, formatting, and clarity to support long-term maintainability. The work demonstrated strong skills in Go, Python, and TypeScript, emphasizing code hygiene, cross-repository refactoring, and documentation improvement without introducing new features or bug fixes.