So, it's going to have to switch to a subscription model eventually to continue to exist?

In my country, some poor people (unfortunately) live in mud houses. They periodically add a new layer of mud, as the old layers get eroded away.

I imagine, this could be done by a robot for this 3D structure.

Of course, this depends on house not collapsing under heavy rain.

or critters digging through walls and into your house

Creative Ground.

gotem