drywall

For the drywall you need a utility knife (for cutting the drywall), some drywall taping knives, a paintbrush and a roller cover.

Also re-configuring plumbing, electrical, or duct-work is likely to involve a lot more effort than re-hanging some drywall.

What's wrong with the traditional stud wall, packed with insulation, and finished with plasterboard / drywall?

Let's assume that you can negotiate installation of the insulation, drywall, and windows for free (it's for a good cause!).

The drywall boards actually had to be ordered separately, and the price increase is not linear.

Sure, but drywall/plaster and paint are a tiny tiny fraction of the cost of a house.

A giant room with drywall and hard floor is a recipe for loud noise.

For most use cases, D-Bus is like using a jackhammer to nail in drywall.

Your 45 on the other hand will likely easily penetrate multiple layers of drywall, then completely penetrate the person on the other side.

I'm ready for my 4x8 panels to be installed directly against wall studs, in lieu of drywall.

And anything more powerful ends up being entire 3D engines like Unity that are like using a jack hammer to nail in drywall.

Or that the building materials were deemed safe (I hear China is great at making drywall!).

Phillips heads in drywall will readily "cam out" when you hit a high enough torque, which can help prevent over tightening or stripping.

"The buildings smell of mud." For someone used to wood covered in drywall and paint, interior bricks smell like the material from which they were made.