Ruby wrapper around MQ series client library

Support rnp's OpenPGP functionality via ruby-ffi. Requires librnp.so.

Enables fast, standards-compliant robots.txt parsing and URL access checking directly from Ruby.

A Ruby FFI binding to librocketmq-client-cpp.

A gem to wrap OpenGL and extensions in an intuitive OO framework.

Very fast jsmin implementation using FFI

ROpenCV is a ffi ruby binding for the Open Source Computer Vision Library OpenCV 2.4.4 and higher

FFI bindings to Google's PDFium library, the same engine that powers Chrome's PDF viewer. Provides text extraction with character-level metadata (font, weight, origin, angle), vector path access, image extraction, annotations, AcroForm fields, page rendering, and pdfplumber-style table detection....

Ruby bindings for rpm. Almost a drop-in replacement for ruby-rpm. Uses FFI.

ps for Ruby processes

Allows to script access to the serial port on Windows. Simple read and write commands

The rslp library is an FFI interface for the OpenSLP service location protocol library. See http://www.openslp.org for more information.

Command-line tool for generating boilerplate for testing Ruby scripts

FFI Ruby wrapper around libsvm

A hack to get source/destination port/ip from a TCP or UDP header

Ruby bindings for librtlsdr - turn RTL2832 based DVB dongles into SDR receivers

Ruby wrapper for RtMidi, a cross-platform C++ library for realtime MIDI input and output.

Complete Ruby bindings for RtMidi C API using FFI, including Ruby-idiomatic MidiIn/MidiOut wrappers for realtime MIDI on macOS, Linux, and Windows.

libudev bindings

Ruby library for working with Digilent devices via the Adept SDK. Provides both low-level wrappers for the Adept SDK elements and high-level interfaces, including simple programming and configuration routines.