Astrasphere

The Astrasphere or Dyson Sphere was invented by an Advanced Civilization called the Vitae. It is charged by a local star. They’re millions in the Degenerate Era. It can last for millions of years for the duration of the stars life. Otherwise it must be migrated to a new star. Most of the time red dwarf stars are used to power them because of their long lifespan and do not require as many materials as the larger stars.