Defining the LABEL via an ARG at the top of the Dockerfile prevents other GitHub repositories (or local Docker users) from leveraging otherwise identical cache layers.
PR: #18
Workaround for a dependency conflict ...
#7 3.632 The following packages have unmet dependencies:
#7 3.692 curl : Depends: libcurl4 (= 7.64.0-4+deb10u2) but 7.74.0-1.2~bpo10+1 is to be installed
#7 3.703 E: Unable to correct problems, you have held broken packages.
This should be reverted once `cmake` no longer comes from buster-backports.
PR: #13
See: 5de32f5d1803fc0f86b9fccdc268cc1d10a4b3ff