...Yes, you read it right, you can install Archlinux without internet with this ISO. Check out the project git repo- https://github.com/easyarch-iso for source code and everything else.
Along with the simple and custom graphical installer, you will get a fully functional desktop environment (XFCE based) with little customization and pre-configured applications. Other than that, there isn't anything else. No extra repository, just vanilla Archlinux.