iohann.s.titov@gmail.com Ivan S. Titov BornAgain is a software package to simulate and fit small-angle scattering experiments (X-ray and neutron) at grazing-incidence geometry (GISAS / GISANS) and specular reflectivity. It implements the distorted-wave Born approximation, supports sample structures built from layered media with embedded particles, and runs from a Qt6 GUI or a Python scripting interface. Build the BornAgain Qt6 graphical interface Read/write detector images as TIFF (via media-libs/tiff) mlz/bornagain