subtractive manufacturing of the 'shell' for the buildings,
it needs more size adaptations... bigger the better.
(so the 'giant' CNC machine can create more varieties of
shapes, adaptable buildings)
Just take the two concepts.
Creating the brick (big as possible)
and the giant CNC machine, with adaptations in drilling.
And insertion of liquid cement, placement of iron rods.
Whether that should dedicated 1 drill/pour/insertion 'heads'
at the ends of the CNC machine, or multiple, (to save time)
is up to the costs involved/efficiency. (I believe the drill
for subtraction needs to be just one, but will require
more axis of handling than 3. For shape of the buildings)
Moreover, while the buildings seem to look 'traditional',
this can be countered easily with a 'surface paste-on'
whether it be tiles + cement, wood/glass/metal. Hence,
if designed correctly, from the aesthetic point of view,
externally, should not look much different than any buildings
one may see, anywhere.
Internally, it is to save costs of structures.
Mostly made of compressed earth, but enough chemicals
to work with CNC machines. (So this 'adhesive'/cement
may have a loophole as well in its research, or go back
to more primitive versions of cement, depending on
the size/height of the building one aims for)
What is leftover, after the subtraction (the drilled
'dust' as it piles up, should be able to be compressed
again with added chemicals for probably higher (height)
buildings or to turn it into roads/ground.