An example Ruby gem with a Go extension.

Golden is a development tool that makes it easier to wrap Go libraries for use in Ruby.

GoogleCurrency extends Money::Bank::Base and gives you access to the current Google Currency exchange rates. This fork allows caching of exchange rate data in Rails.cache and removes the necessity for the Mutex.

Vector-based shadows for circles and axis-aligned rectangles in the Gosu graphics library.

Wraps native go-version in a ruby library for deep compatibility.

Go ZXing QR Code Encoder Ruby wrapper.

Unlike the other wrapper of the same library, this gem contains the c code and dictionary data, making it a standalone gem. This is good for deployment on platforms such as heroku where you can't install native libraries to your environment

GRNexus is a revolutionary cross-language AI platform that combines the elegance of Ruby with the raw power of native C acceleration. Train models in Ruby and deploy them in Python (or vice versa) with full compatibility. Features include 35+ activation functions, 12+ layer types, complete NLP pipeline, 40+ numeric operations, and intelligent training callbacks. 10-100x faster than pure Ruby implementations thanks to native C core.

A GROM implementation using a GO native extension for heavy lifting.

A library for doing SASL based authentication mechanisms

GTK FFI bindings for Ruby

Automatically reloads your Goliath app on file change using Guard.

Guruby is a Ruby interface to the Gurobi solver

Graphviz for Ruby, using libgvc via FFI

Ruby binding for convenient data-object sharing library - Hakuban.

Haltia.AI Software Development Kit (SDK) for Ruby

Complete Ruby bindings for HarfBuzz using FFI. Covers Core API, OpenType Layout, Variable Fonts, AAT, Subset API, and more.

A ruby wrapper to the HDF5 data library. Currently can only read HDF5 files.

The implementation of Bitcoin hierarchical deterministic key for Ruby.

Herms-beacon scans for any available altbeacons/ibeacons