FF4 hacking

I recently picked up an FFIV hack that I had well underway in 2016-2017, only to find that the amazing information resource Slick Productions has vanished from the internet. And, despite searching, I haven't found any other forums or sites focused on FFIV hacking.

Does anybody know of a place where FFIV hacking is actively discussed? What happened to the folks from Slick Productions? Are they still around? Is all of that amazing technical data on the game still out there somewhere? Or is it all just gone?