https://ostechnix.com/how-to-set-password-policies-in-linux/
@brynet @benjamineskola @judfilm @brightside
You in fact _are_ talking about PAM, though, because that's where 50% of the the #ifdef __Linux__ conditional compilation actually is, and 25% of it is in comments. (-:
Example: https://github.com/slicer69/doas/blob/master/doas.c#L423