Powered by Arkdep from the Arkane Linux project this exciting new Manjaro variant is available for public testing right now! The goal of this release is to gather community feedback on the technology powering Manjaro Immutable. Note that this is only an experimental release and not representative of the final version, there is also no support guarantee, so hold off on installing it as your primary operating system, at least for now. We are hugely interested in gathering your feedback on Ma...
I don’t know for the AUR, but the regular repos seem to be already accessible. You can try them with pacman, but the installed packages will be deleted at the moment of the update, or you can create a custom image and add the wanted packages which will be reinstalled at every update.