- win 20 Rubyesque interfaces and wrappers for Windows API functions defined using FFI
- rippler 15 Command line client for Ripple payment platform. It uses Ripple websocket API to send commands and receive responses.
- dde 5 Server that mimics Excel receiving XLTable data via DDE protocol
- moneydance-ruby 5 This is a Moneydance extension that adds Ruby scripting support to it.
- win_gui 4 Rubyesque interfaces and wrappers for Win32 API GUI functions