>>12031459Sure.
All you have to do is come up with artificial gravity that you can put at the center of the Moon so it'll hold an atmosphere.
Also active radiation shielding against radiation from the sun, since the Moon has no magnetosphere or ozone layer.
Oh and also improrting gigaacre-feet of water.
Oh and also massive amounts of anaerobic bacteria to turn lunar regolith into usable soil.
Oh and flora and fauna to build a working ecosystem.
Other than those trivial little things, no problem.