Ubuntu Noble Desktop Installer ISO: https://people.canonical.com/~juergh/x13s/noble/daily-live/current
It’s an early test ISO which I’ve used successfully to install Noble from scratch. The ISO is built locally (still looking into moving that to Launchpad) and there are a couple of additional packages installed from PPA juergh/x13s. Once the dust has settled, I’ll move all the required packages to the more official ubuntu-concept/x13s PPA and build images using that.