Do you think “repulsive gravity” aka Dark Energy has to do with UAP technology?

I was watching an older Brian Green video on Joe Rogan in which he talks about repulsive gravity and the possibilities of what happened before the big bang ( video here: https://www.youtube.com/watch?v=FHAA_1Guxlo )

TLDR of it: a solid theory out there is that repulsive gravity could be the reason for the expansion of the big bang initially, and potentially behind what continues to drive galaxies and our universe farther apart. I was really interested in how that might tie in to the technology described on “UAP crafts” in the stories we hear.

Per google: “Dark energy is thought to be very homogeneous and not dense, and is not known to interact through any of the fundamental forces other than gravity. It has a global effect on the universe as a whole, rather than any local gravitational effects. This effect accelerates the expansion of the universe, and observations based on the Hubble law can measure the rate of expansion and acceleration.”

So basically, what I gather from that is that it is relatively inert in the sense that it doesn’t do much on the smaller scale, but on the grand scale it is doing a lot. Can dark energy be theoretically condensed enough to produce repulsive gravity “locally” around an object (if guided in such way)? If dark energy is weak and not dense on its own, would it be fair to assume that if there was a way to manipulate it and condense it at will, that the by-product would be condensed space-time as well, meaning the stories we hear about “pulling” spacetime toward a craft are valid? Maybe my brain is cooked, idk. I’d love someone with a physics or science background to chime in.

What are your thoughts?