only do ruby
unify style & never install gem docs
less apt update and other tweaks
derbify
readme updates
verify ruby-install downloads + formatting
add maintainer entry
don't generate rdoc when installing
add warning to readme
replace imagemagick w/ libmagickwand-dev
optimize erb usage
don't install libmagickwand
inline ruby.sh
simplify readme
use current way of preventing rdoc for gems
neutral workdir