The idea is to create cryogenic electronics that operate near absolute zero with minimal power. https://www.techbriefs.com/component/content/article/54866-an-ultra-low-power-technology-expands-quantum-and-space-potential

There are also ideas for putting quantum computers on dirigibles in the stratosphere https://discovery.kaust.edu.sa/en/article/26198/green-quantum-computing-takes-to-the-skies/

And China has already been doing a lot of experiments with quantum communication using satellites https://en.wikipedia.org/wiki/Quantum_Experiments_at_Space_Scale