Josie Peters focused on stabilizing core geometry computations in the Fusion-Power-Plant-Framework/bluemira repository by addressing a critical division-by-zero risk in the get_centroid_2d function. Using Python and applying numerical methods, Josie improved the reliability of centroid calculations when the area approaches zero, which previously could cause crashes in 2D geometry processing. This fix enhanced the robustness of downstream analytics and simulations that depend on accurate geometry calculations. Josie also expanded test coverage to prevent future regressions, demonstrating attention to edge-case handling and code quality. During this period, no new features were added, but a major bug fix was delivered.