This is somewhat related to https://tracker.pureos.net/T349 . It will be incredibly more easy for people developing for PureOS if PureOS would be supported by Debian's debootstrap (and if this would tickle down to all downstreams).
I agree completely and I thought actually that the "amber" dist was already upstream, but apparently not. I'll investigate and try and ensure the amber definition is in Debian's bootstrap.
that wold be so super cool since it would prevent dragging around deboostrap scripts by hand.
I've added a commen to https://salsa.debian.org/installer-team/debootstrap/merge_requests/37 . Maybe filing a bug against deboostrap (and updating the MR to close it) accelerates this?