  In this article we develop the framework to describe Bose-Fermi mixtures of
magnetic atoms, focusing on the interaction of bosonic self-bound dipolar
quantum droplets with a small number of fermions. We find an attractive
interaction potential due to the dipolar interaction with several bound states,
which can be occupied by one fermion each, resulting in a very weak back-action
on the bosons. We conclude, that these impurities might act as unique probes
giving access to inherent properties of dipolar quantum droplets.
