noloco: An efficient implementation of van der Waals density functionals based on a Monte-Carlo integration technique

► We present a numerically efficient implementation of van der Waals DFT. ► The computational efficiency is achieved through the usage of the Monte-Carlo integration technique. ► It scales particularly well for periodic systems. ► The code can be used on top of any DFT code. ► Different flavors of vdW density functionals are included.