Im new here, sorry if this has been covered already...
So, one big issue that I see is that on many of the older videos, Casey says to the viewer that they can go to the website and access the forums and coding resources to get ports to other platforms. It seems to me that all of these resources have transitioned into the private Github group, which seems fine but, the issue I see is that for newcomers there isn't really an obvious path to get there. Maybe put a small note on the page that Casey in the older videos tells you to go to so that you can find the new location?