"permanent" how? The fact that it has ended up a dead rock implies that that's its steady state. You make mars habitable, it'll probably require a perpetual gardening effort to keep it that way.

https://astrobiology.nasa.gov/news/how-to-give-mars-an-atmos....

I've talked with Dr. Green about the parasol idea, we still need to do a stability analysis since L1 is unstable, how much effort will it take to keep the dipole in place given the solar wind can fluctuate by an order of magnitude in either direction of the average. It's a fun problem.

I wonder if having an adjustable center of mass would solve this problem.

A mass ejection method would have to be maintained too often, but CoM adjustments can largely be automated (at least in principle).

The simulation I want to do involves manipulating the dipole strength, since it's deflecting solar wind, there's momentum exchange, if you fluctuate how much area you're blocking out you could get more or less drag as necessary.

It would be effectively permanent. The sun would strip the atmosphere over a period of time on the order of a hundred million years. If we could terraform it in the first place maintaining it would be trivial.

If you're going to Mars you may as well live underground to avoid the asteroids, dust and radiation.

What if Venus already has sentient life? Either pre technosignatures or too sophisticated to advertise their presence to the tribe of nuclear monkeys across the pond.

We can't just go waltzing in there and "terraform" something that isn't ours. We'd had to work it out first with whoever's there.

On the cloud city sustenance point isn't there ample mining to be had? Like Lando

There’s nothing to mine. The atmosphere is mostly carbon dioxide with a little nitrogen. Everything else is in insufficient quantities to make it worthwhile probably ever.

Cloud City worked because they mined a magical gas called tibanna that generated no magnetic field, no radiation, was denser than air, and dissipated heat so well there was no turbulence.