gbp clone git@salsa.debian.org:med-team/libvcflib.git -b debian/buster-backports
gbp buildpackage -S -d -v1.0.0~rc2+dfsg-2
and
gbp clone git@salsa.debian.org:med-team/hopscotch-map.git -b debian/buster-backports
gbp buildpackage -S -d
# no -v needed as it will be new to buster
Thanks!