As RubyProcessing is now deprecated this a home for JRubyArt.
JRubyArt relies on jruby-9.1.12.0 and uses the k9 -r or k9 -w commands.
jruby-9.1.12.0
k9 -r
k9 -w
Decent documentation live here:
Mac Documentation.
Differences with RubyProcessing.
further,
size, smooth and many other setup methods are no longer
supported in the setup method. JRubyArt now has a settings method.
setup
settings