Hello. The issues with dh-builtusing seem fixed. I have tested

sbuild --host=arm64 --profiles=pkg.uboot.notools,pkg.uboot.platform.none

sbuild --host=armhf --profiles=pkg.uboot.notools,pkg.uboot.platform.none

and the salsa CI should confirm for arm64. This merge request also splits two related but distinct suggestions. https://bugs.debian.org/1051098