Please help! Cracked egg at lockdown

[S0uthernangel19]

Was candling my duck eggs one more time before lockdown and one egg got cracked, you can see the little guy in there and it looks like he’s still in his sac and breathing, but do you guys think he will make it? Do I help him out of his shell now since no other eggs are pipping yet?

 

[Chookchicken]

I’m not exactly sure to what do with a crack this big. Don’t do anything with for now.