In that case the comment makes no sense - the details of AArch64-based Macs have been made public just a few weeks ago. It takes a while to do port and test for a new platform, even if iOS was already supported.
Yup, that’s what I’m doing. Just offering my comments on how difficult some projects are to port: some require no new code and some will require quite a bit, and some will be blocked on their dependencies being in the latter camp :)
No, I learned of it the same time you did, although I had a fairly good idea about when this was coming for a few years ;) And while I have a bit of additional information now, it's nothing that would really be useful for porting.
Can you say which ones? It's hard to place your comment without details.