The Blueprint System
The Blueprint System is a mechanic in which allows workers to build a structure via the "blueprint" menu, located at the top right of the screen represented by a Wooden Door. Also, Any Blueprint can be modified, created, imported or exported on the blueprint menu.
Each building can be a "Housing Structure", a "Work Structure" or a "Decoration Structure" depending on its contents.
A Housing Structure has a bed inside, which may attract a new villager to your town.
A Work Structure allows 1 villager to convert into a proffesion, depending on said building.
A Decoration Structure serves no purpose aside from decoration.