Model used for face recognition?

Just diving into face recognition solutions (want to use it for my security cam, in combination with Home Assistant). Was wondering which model Deepstack uses to do face recognition, couldnt really find something about this somewhere (but maybe didnt look good enough). On this page https://viso.ai/computer-vision/deepface/ there are a number of models described, but is deepstack using one of those or could multiple be used? Anyone knows?