John Zhou’s paper introducing the TDDFT-ris model was recently published in The Journal of Physical Chemistry Letters. In this paper, we introduce a minimal auxiliary basis set approach to approximate TDDFT using a resolution-of-the-identity approximation with just a single s-function per atom. TDDFT-ris reproduces TDDFT excited states with a mean error of about 0.06 eV while reducing the cost by a factor of 200-300. The full paper is titled “Minimal Auxiliary Basis Set Approach for the Electronic Excitation Spectra of Organic Molecules”.