The gravity of the environment poses no issues; the basic infrastructure inside the Firmament Wheel is currently very simple, something Lilith can manage on her own.
The space compression doesn't affect Lilith's ability to work inside here. Once the Heart of the Machine connects to the Firmament Wheel, modifications to the interior become possible.
Even parts of the Virtual World can be synchronized here, allowing people from the Virtual World to operate here in physical form, filling up the Firmament Wheel.
This is the effect when Dream Dust pairs with the Fantasy Great Array Formation; the illusory nature of the Firmament Wheel is akin to the Dream Realm, where people from the Virtual World can 'transform' within the scope of the Firmament Wheel.
As long as they do not leave the boundaries of the Firmament Wheel, they are indistinguishable from the real. The Firmament Wheel acts as a special Dream Realm.
