Developed advanced wavelength-domain tooling for the optiland repository, focusing on expanding modeling capabilities and backend mathematical operations. Leveraging Python and Jinja, introduced the add_wavelengths functionality to generate WavelengthGroup samples using Chebyshev or uniform distributions across logarithmic, frequency, and wavelength domains. Enhanced the WavelengthGroup component to support more flexible and domain-aware sampling, while broadening the backend with new mathematical operations such as arange, log2, and abs. This work improved the flexibility and scalability of optics simulations, enabling faster experimentation and supporting new use cases in scientific computing and numerical methods without introducing additional bugs during the development period.