Designing for low gravity
One-sixth g is not a smaller version of Earth gravity. It is a different design problem with its own rules.
The first instinct when designing for the Moon is to take an Earth building and make it lighter. This is a mistake. Low gravity changes how people move, how fluids behave, how dust travels, and how structures load — and none of those change proportionally.
People move differently
In one-sixth g, walking becomes a series of controlled hops. Corridors need more vertical clearance and more room to arrest momentum. Handholds matter even on the surface. The floor is less special than it is on Earth; the ceiling is more useful.
Dust is the enemy
Lunar regolith is abrasive, electrostatically charged, and it goes everywhere. Every threshold between outside and inside is a dust-management problem. We design airlocks as cleaning stations first and pressure vessels second.
You do not keep the dust out. You decide where it is allowed to be and you defend that line.
The habitats we build for the Moon share very little with the ones we build for orbit, and that is the point. Each environment gets a design that respects it.