Red Arrow Numo::NArray adds `Arrow::Tensor#to_narray` and `#to_arrow`/`#to_arrow_array` to `Numo::NArray`'s numerical subclasses such as `Numo::Int8`. `Arrow::Tensor#to_narray` returns a `Numo::NArray`'s numerical subclass such as `Numo::Int8`. `#to_arrow` returns a `Arrow::Tensor`. `#to_arrow_array` returns an `Arrow::Array` instance if the original object is an 1 dimensional array.

Red Arrow PyCall adds `#to_python` method to most Ruby objects for Apache Arrow such as `Arrow::Array`. Red Arrow PyCall adds `to_ruby` method to most Python objects for Apache Arrow such as `pyarrow.lib.Int8Array`.

Red Datasets Arrow adds `#to_arrow` method to each dataset in Red Datasets. You can get dataset as `Arrow::Table` object. `Arrow::Table` is provided by [Red Arrow](http://github.com/red-data-tools/red-arrow).

Red Datasets GDK Pixbuf adds `#to_gdk_pixbuf` method to some datasets in Red Datasets. You can get `GdkPixbuf::Pixbuf` objects from a dataset.

Red Datasets Numo::NArray adds `#to_narray` method to each dataset in Red Datasets. You can get dataset as Numo::NArray's numeric subclass object.

Red Datasets Pandas adds `#to_pandas` method to each dataset and its table in Red Datasets. You can get data as Pandas::DataFrame class object.

Red Palette provides features for dealing with palette.

Rephrase: a gem for manipulating Ruby code

Base implementation of Repository layer in Data Mapper pattern. See README for details.

Support classes for Repository::Base and subclasses.

Light weight job scheduling on top of ResqueAdmin. Adds methods enqueue_at/enqueue_in to schedule jobs in the future. Also supports queueing jobs on a fixed, cron-like schedule.

Write your resume once in machine-readable YAML format and export it to HTML or PDF using custom themes.

A server and slide deck generator for revealjs

Rhet Butler is a presentation assistant. Build a slide deck in simple YAML, design it in CSS, run the presentation with your smartphone over Websockets.

riak-client is a rich client for Riak, the distributed database by Basho. It supports the full HTTP and Protocol Buffers interfaces including storage operations, bucket configuration, link-walking, secondary indexes and map-reduce.

Just the bare minimum of what's needed to create bi-directional chat bots using Roda as backend, sucker_punch and Clockwork for async and timed jobs.

Files adapter for ROM

Receives queries from RoQua, sends them to Mirth, and translates Mirth's responses back into Rubyland.

an ePub generation library in Ruby

RSpec extensions for using AXElements