Creating Beautiful Charts with JRuby and JFreeChart

I recently returned from RubyKaigi where I had the opportunity to sit down with members of the Japanese Ruby community and show them a little bit of JRuby. One of the items that came up a few times was the difficulty of utilizing external libraries from Ruby: if it’s a C library, typically you have to either write a C extension or do the extra work of writing up an FFI binding.