To improve the consistency between charge and Lennard-Jones parameters, and also reduce the reliance on fitting to experimental data, one could either directly fit non-bonded MM parameters to reproduce quantum mechanical (QM) energies and forces, or derive the non-bonded parameters of the force field directly from QM. In the latter approach, the QM interaction energy may be broken down into physically motivated components using intermolecular perturbation theory, though these methods are limited to quite small system sizes. Encouragingly, Grimme's quantum mechanically derived force field (QMDFF) method is capable of outputting bespoke non-bonded force field parameters for molecules comprising more than 100 atoms. Despite using fixed point charges, with no explicit polarization term, the bespoke force field reproduces both QM inter-and intramolecular energies to an accuracy of around 1 kcal/mol for small molecule benchmarks.