[K0SM0S]

Lots of potential uses indeed — also for travel, potential megastructures, and mining beyond the wildest hopes of asteroids but it's likely to be harder to get the stuff (gold, iron, etc) down there than it is to travel millions of kilometers out there through the void and radiations...

And yes, potentially much more heat than we'd know what to do with currently.

Interesting hard sci-fi (well, basic physics principles mostly) about it by Isaac Arthur: https://youtu.be/jZQP2oNDkAM

Disclaimer: absolutely not affiliated with the man but deeply hoping that such perspectives become maintream, normal expectations. Not holding my breath, but one hacker at a time, we'll get there!