I thought it would be good to have wooden walls. You could make them using boards and then using nails. Nails would be crafted by some machine or something.
I hope you will like my idea
I like your idea! Maybe the walls can have some advanced features. Like hanging a box on a wooden wall.
i like wooden buildings they have a nice charm to it. maybe you could write on the wall «home sweet home» and stuff like on signs.