During May 2025, Harrison Kramer developed wavelength-domain tooling for the optiland repository, focusing on expanding modeling capabilities and backend mathematical operations. He implemented the add_wavelengths functionality, enabling the creation of WavelengthGroup samples using Chebyshev or uniform distributions across logarithmic, frequency, and wavelength domains. This work enhanced the flexibility and scalability of optics simulations by supporting advanced, domain-aware sampling strategies. Leveraging Python and Jinja, Harrison also broadened the math backend to include operations such as arange, log2, and abs. The depth of this feature improved simulation workflows, reduced development friction, and enabled new use-cases in scientific computing and backend development.