The idea behind `setup.sh` is identical to that of a makefile, translate into a makefile

So I just clued onto the fact that instead of asking people (me lol) to run ./setup.sh I just could just standardise this exercise into a makefile with clearly defined actions, as is the purpose of makefiles.

ftp://ftp.gnu.org/old-gnu/Manuals/make-3.79.1/html_chapter/make_2.html

Either I move the setup.sh into a /scripts directory, and then just call these scripts from the makefile, or I just pull it all into the makefile. Obviously this all also requires linting and whatnot.