xTB is a universal semi-empirical atomistic simulation method based on density fluctuations around a superposition of atomic reference densities truncated after the second order term (with a modified third-order term that accounts for short range coulomb and exchange correlation effects). xTB also includes a degree of non-locality in the form of VV10-like correlation contributions. We use the GFN2-xTB variant of this methodology in which anisotropic contributions to electrostatics and exchange correlation are calculated explicitly.