Ash Baldwin refactored the NQCDynamics.jl codebase to improve modularity and prepare for future Ring Polymer simulation features. By moving the get_hopping_eigenvalues function into SurfaceHoppingMethods.jl and introducing RingPolymerSimulation as a dependency, Ash enhanced the repository’s organization and cross-package integration. The work focused on code organization, dependency management, and refactoring within the Julia programming language, establishing clearer module boundaries and a more maintainable dependency graph. Although no bugs were fixed during this period, the changes laid a solid foundation for future development, demonstrating a disciplined approach to codebase evolution and readiness for advanced simulation capabilities in NQCDynamics.jl.