R (language) provides C interface. This package utilize the interface and allow Ruby to construct and evaluate R's internal S expressions

RbSDL2 treats the functions and pointers provided by SDL as Ruby objects.

Themis is a convenient cryptographic library for data protection. It provides secure messaging with forward secrecy and secure data storage. Themis is aimed at modern development practices and has a unified API across 12 platforms, including Ruby, JavaScript, iOS/macOS, Python, and Java/Android.

The Ruby Code Generation Toolkit provides classes for generating LLVM IR and native object code.

Allows to communicate with ROS program.

Common components for the RCS Backend

Readline-ffi is a wrapper library of Readline, using Ruby-FFI.

Redlander is Ruby bindings to Redland library (see http://librdf.org) written in C, which is used to manipulate RDF graphs. This is an alternative implementation of Ruby bindings (as opposed to the official bindings), aiming to be more intuitive, lightweight, high-performing and as bug-free as possible.

add a FFI layer to original rinku

Run EventMachine code in a ripl shell asynchronously with readline editing and completion

Retrieve and adjust rlimits

The Ruby Language Toolkit provides classes for creating context-free grammars, lexers, parsers, and abstract syntax trees.

Ruby wrapper around MQ series client library

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

A Ruby FFI binding to librocketmq-client-cpp.

RocksDB for ruby using FFI

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

ps for Ruby processes