Timeout provides a way to auto-terminate a potentially long-running operation if it hasn't finished in a fixed amount of time.

minitest-rg changes the colour of the output from Minitest.

ruby-hydra is a Ruby library for working with hyphenation patterns.

This package provides support for encoding and decoding binary data using a Base64 representation.

This gem provides parser dictionary data for AnyStyle.

ProgressBar is a simple library for displaying progress bars. The maximum value is configurable, and additional information can be displayed like the percentage completion, estimated time remaining, elapsed time and rate.

Ruby-Locale is the pure ruby library which provides basic APIs for localization.

This library provides contracts for Ruby. A contract describes the correct inputs and output for a method, and will raise an error if a incorrect value is found.

This package allows you to test FTP implementations in ruby. It is a minimal single-client FTP server that can be bound to any arbitrary port on localhost.

This package provides a Language Server Protocol (LSP) development kit for Ruby.

This library makes it easier to discover the truth values of various Ruby objects.

This package provides a command line interface for running for Rack applications.

This library provides a generic OAuth2 strategy for OmniAuth. It doesn't provide a way to gather user information, so should be used as a building block for authentication strategies.

CountDownLatch is a synchronization aid that allows one or more threads to wait until a set of operations being performed in other threads completes.

Debugging functionality for Ruby. This is completely rewritten debug.rb which was contained by the ancient Ruby versions. It is included with Ruby itself, but this package is made available so that the latest version can be made available independently from Ruby.

Faraday is a HTTP/REST API client library which provides a common interface over different adapters.

Hamster provides 6 persistent data structures: Hash, Vector, Set, SortedSet, List, and Deque (which works as an immutable queue or stack).

TaskJuggler (tj3) is a project management tool for project planning and tracking using a domain specific language; projects are plain text files written using your favourite text editor. It includes reporting in HTML, CSV or iCalendar format and an email based status tracking system to send and receive time sheets from collaborators.

It covers the complete spectrum of project management tasks from the first idea to the completion of the project. It assists you during project scoping, resource assignment, cost and revenue planning, risk and communication management, status tracking and reporting.

Optimized XML (Ox) is a fast XML parser and object serializer for Ruby written as a native C extension. It was designed to be an alternative to Nokogiri and other Ruby XML parsers for generic XML parsing and as an alternative to Marshal for Object serialization.

nio provides cross-platform asynchronous I/O primitives in Ruby for scalable network clients and servers.

RJB is a bridge program that connects Ruby and Java via the Java Native Interface.

Timecop provides "time travel" and "time freezing" capabilities, making it easier to test time-dependent code. It provides a unified method to mock Time.now, Date.today, and DateTime.now in a single call.

BRASS (Bare-Metal Ruby Assertion System Standard) is a basic foundational assertions framework for other assertion and test frameworks to make use of.

Lino provides an interface to run external commands. It provides an interface to add options as well as managing the standard input, output and error streams.