GDAL/OGR bindings for ruby

Lookup IPv4 and IPv6 addresses in Maxmind GeoIP2 database files

pygments.rb exposes the pygments syntax highlighter to Ruby

A lite ruby wrapper around Joyent http-parser

cppjieba binding for ruby

systemd-journal logging native lib wrapper

Wrapper around the C++ api for Leap Motion.

Ruby module to interact with block devices on Linux platforms.

A proxy server for MongoDB.

Adds support to Ruby for encrypting, decrypting, signing and validating the signatures of XML documents, according to the [XML Encryption Syntax and Processing](http://www.w3.org/TR/xmlenc-core/) standard, by wrapping around the [xmlsec](http://www.aleksey.com/xmlsec) C library and adding relevant methods to `Nokogiri::XML::Document`.

Ruby/Numo Linear Algebra library with interface to BLAS/LAPACK.

Ruby interface to libots libraries for unix.

Yet another Ruby profiler

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

Ruby bindings for C library quirc that extracts and decode QR images

Ractor::TVar

Readapt is a Ruby debugger that natively supports the Debug Adapter Protocol. Features include next/step in/step out, local and global variable data, and individual thread control.

The rkerberos library is an interface for the Kerberos 5 network authentication protocol. It wraps the Kerberos C API.

Ruby to Lua bindings

ruby-dnn is a ruby deep learning library.