P contains all necessary integrals to perform RSDFT calculations, including the longrange interaction integrals and Hartree-exchange-correlation energies and potentials derived from the short-range version of the local-density approximation (LDA) 147 and a shortrange generalized-gradient approximation (GGA) based on the Perdew-Burke-Ernzerhof (PBE) functional. All numerical integrals are performed using the standard Becke quadrature grid 149 associated with the improved radial grids of Mura et al. With these tools, more evolved schemes based on RSDFT have been developed, such as an energy correlation functional with multideterminantal reference depending on the on-top pair density 151 or a basis set correction. 141 e corresponding source code can be found as external plugins (see, for example, h ps://gitlab.com/eginer/qp plugins eginer).