There is a list of several gems depending on ffi ( https://www.ruby-toolbox.com/projects/ffi ), mostly system stuff: Popular gems depending on ffi childprocess, rb-inotify, rb-kqueue, rb-fchange, ethon, spoon,…
There is a list of several gems depending on ffi ( https://www.ruby-toolbox.com/projects/ffi ), mostly system stuff: Popular gems depending on ffi childprocess, rb-inotify, rb-kqueue, rb-fchange, ethon, spoon,…