so, it is moved to PoS already? how to mine this coin for now...? are we just hold it without do anything?
I don't think it has moved to PoS, I mean... there are "67186 miners" in
https://ethermine.org/.
I remember reading long ago that "somewhen" they'd go into a hybrid PoS/PoW and later on they'd disable the PoW completely. I'm not sure if we've entered the PoS/PoW right now... probably?