It's my natural, attention getting phrase... "Hey guys".
In my mind it's entirely non-gendered at this point, at least in that context. Guys is just a group of people.

But stepping back, I can see some underlying issues with it. Like, why is it guys and not gals? I don't see it is as necessarily problematic, but it's something.

So I'm starting to use "everyone" instead. "Hey everyone..." It's kind of like a discipline exercise. I slip up from time to time. But it's starting to stick.