In this lesson examples such as "Vous aurez déménagé d'ici avril" and "Nous aurons fini de creuser la piscine d'ici le mois prochain and others use the futur antérieur, yes?
Futur antérieur is not difficult to understand. However, I am following the Lawless French website algorithm for studying B1 subjects. Up to the point of "By + [point in time] = d'ici ..." the futur antérieur verb structure has not been introduced.
It's a little disconcerting to mix key grammar points, such as futur antérieur, into examples before they have been studied.