Elseworlds crossover for the CW shows
Supergirl the android Amazo is activated. Cisco and Caitlin determine that the robot was built to track (and copy) metahuman powers.
But Superman and Supergirl get copied as well. Their powers are not meta in nature at all, are not the result of the dark matter etc - they're a fact of their alien biology interacting with a yellow sun.
So how exactly does Amazo manage to copy those? To be clear, I'm looking for explanations from anyone related to the shows who may have been asked about it, or if an in-universe explanation exists, I'll accept that as well.