Following persons have contributed to ffi-tk.
(Sorted by number of submitted patches, then alphabetically)

   247 Michael Fellinger <m.fellinger@gmail.com>
    21 Julian Langschaedel <meta.rb@gmail.com>
     2 Michael Fellinger <michael.fellinger@xing.com>
     1 Simon Hafner <hafnersimon@gmail.com>
     1 unknown <manveru@.(none)>