Currently in Pharo the image is maintained step by step by adjusting and changing it. It is like a database of objects that you maintain over time.
But since the beginning of Pharo there was this also the dream to be able to bootstrap the image cleanly right from the ground up. It is a lot of work to prepare such a bootstrapping process - but now the efforts bring the first fruits: there is a minimal Pharo kernel that is bootstrapped.
I can only say: amazing work!