I just stumbled across this and thought I’d flag it.
VeloxChem is a Python-based open source quantum chemistry software developed for the calculation of molecular properties and simulation of a variety of spectroscopies.
VeloxChem features interactive program access through Jupyter notebooks as well as large-scale calculations in contemporary high-performance computing (HPC) environments.
It can be installed under macOS using conda https://veloxchem.org/docs/installation.html#installing-on-macos
Source code is available on GitLab https://gitlab.com/veloxchem/veloxchem