IOS source code for Wolfenstein 3D & Doom classic

I'm not sure if the source was available before. But if so, I'm wondering if anyone has compared it to the original source to see what was changed? Anything interesting? Anything major?

DOOM doesn't compile, seems to be missing some files.

why is there an agewall?

This is actually old news if you read Fabien's code review pages. He has had links to the ios source on there for a while.

idkfa iddqd it's frightening that that's <i>still</i> saved deep in my brain and rapidly available.

Y U NO GITHUB?