Does anyone know if there exists a program that I can run locally on a Linux computer that will take a photo and replace a specified face with another face with the same expression?

Seems like it should be possible with deepfakes / animoji type stuff.

I ask because I'd like to post photos of my family on various platforms but I am not yet comfortable with the idea of posting my son's face in public or semi-public settings.

I'd love to keep the essence of the photos without necessarily posting his face, though...