During November 2025, Nixy contributed to the xmake-io/xmake-repo repository by developing and packaging the FMM3D N-body Interaction Library, which supports three-dimensional simulations governed by Laplace and Helmholtz equations. Nixy’s work involved implementing core C libraries and integrating them into the build system, ensuring compatibility with xmake’s package management workflow. This addition enables advanced high-performance computing and physics simulations within the xmake ecosystem, laying groundwork for future enhancements such as testing and documentation. The project required proficiency in C programming, build systems, and package management, and established a foundation for expanded adoption and further optimization of numerical simulation capabilities.