  One of the few ways that we can understand the environment around dusty stars
and how much material they contribute back to the Universe, is by fitting their
brightness at different wavelengths with models that account for how the energy
transfers through the dust. The DESK is a python package designed to compare
the best fits of different stellar samples and model grids for a better
understanding of the results and their uncertainties. The package fits the
Spectral Energy Distribution (SED) of evolved stars, using photometry or
spectra, to grids of radiative transfer models using a least-squares method.
The package includes newly created grids using a variety of different dust
species, and state-of-the-art dust growth grids. A robust method for testing
different model grids will be particularly important given the wealth of
infrared data to come from the James Webb Space Telescope (JWST).
