To be honest i don't remember too much how it compiled with MacOS.
I didn't spend lots of time on it and i never use Xcode except for a couple of projects i ported on macOS.
1) No, all Juice files are included in the Git repository.
2) I first didn't understand what you meant... then i looked at git, and it seems i forgot to push the builds/MacOs folders

I'll try to do that later today.