Connecting PCV for the first time…is this nub at the back my carb where I’m supposed to connect it?

So I have a breather with a nipple on it that I could use on the other valve cover but I’m not seeing a spot to hook it up to the air cleaner. Is that something I’ll need to make myself?
I wouldn't worry about that. (unless New York requires it) You have a breather on one cover and the pcv hooked to the base of the carb on the other cover. That should be all you need.