During January 2026, work focused on enhancing the lab-cosmo/atomistic-cookbook repository by delivering modular prefactor handling for flexible potentials. The main feature involved refactoring the codebase to move the prefactor from the EwaldCalculator to the InversePowerLawPotential, which reduced coupling and improved maintainability. This approach enabled more modular configurations and facilitated easier experimentation with different potential models. The changes were implemented using Python, leveraging skills in numerical methods and scientific computing. No major bugs were addressed during this period, but the update improved testability, clarified separation of concerns, and established a foundation for faster iteration on future enhancements.