nfqueue is a tiny wrapper around libnetfilter_queue. It allows you to very simply intercept and modify network traffic in a Ruby environment.

High-speed approximate nearest neighbors for Ruby

Nice-FFI is a layer on top of Ruby-FFI (and compatible FFI systems) with features to ease development of FFI-based libraries.

Wraps the nanomsg networking library using the ruby FFI (foreign function interface). It only exposes the native C API to Ruby. Other gems should use this gem to build an API using Ruby idioms.

Oklahoma Mixer is a intended to be an all inclusive wrapper for Tokyo Cabinet. It provides Rubyish interfaces for all database types and supports the full range of features provided.

You can prove anything with facts!

OpenFeature Flipt Provider for Ruby

A FFI wrapper around the OpenSCAP library. Currently it provides only subset of libopenscap functionality.

PasteHub is cloud-based cross-platform clipboard sync.

A benchmark tool for all rubies!

FFI Bindings for the Phidget Library

Ruby gem for using PiFace Extension Board (and Raspberry Pi)

Ruby client for PlanetScale Databases

The Sensu spawn process library

Adds right-to-left (RTL) text support to Prawn PDF generator. Fully supports Arabic script languages (Arabic, Persian, Urdu) with contextual letter shaping and ligatures. Also supports Hebrew and other RTL languages with bidirectional text reordering. Handles mixed LTR/RTL text properly.

FFI wrapper around portable semaphore library with mutex and condition vars built on top.

leader election with zeromq for ruby using widely available leader election algorithms, similar to gen_leader erlang project in essence

A Ruby RabbitMQ client library based on FFI bindings for librabbitmq.

raylib is a simple and easy-to-use C library for enjoying videogames programming. This gem provides Ruby language bindings for raylib, making it easier to develop games in Ruby using raylib.

Rbind is developed to automatically generate ruby bindings for OpenCV but is not tight to this library.This gem is still under heavy development and the API might change in the future.