RubyRC4 is a pure Ruby implementation of the RC4 algorithm.

cliver provides a way to detect missing command-line dependencies, including versions.

Provides empty Module#ruby2_keywords method, for the forward source-level compatibility against ruby2.7 and ruby3.

Timers offers a collections of one-shot and periodic timers, intended for use with event loops such as async.

shoulda is a meta-package combining shoulda-context and shoulda-matchers providing tools for writing tests.

This package is a Ruby parser library for Gemtext (hypertext format which is intended to serve as the native response format of the Gemini file transfer protocol) and produces a document object of various nodes.

This Ruby gem extends Faraday to perform multipart-post requests.

This is a parser for kramdown that converts Markdown documents in the GFM dialect to HTML.

Rubocop::AST extends ruby-parser with classes used by RuboCop to deal with Ruby's Abstract Syntax Tree (AST), in particular:

• RuboCop::AST::Node

• RuboCop::AST::NodePattern

Sanitize is a whitelist-based HTML and CSS sanitizer. Given a list of acceptable elements, attributes, and CSS properties, Sanitize will remove all unacceptable HTML and/or CSS from a string.

This package provides a Ruby wrapper around the Terraform command line interface so that Terraform can be more easily invoked from Ruby code.

Formatador is a Ruby library to format text printed to the standard output stream.

Test::Unit is unit testing framework for Ruby, based on xUnit principles. These were originally designed by Kent Beck, creator of extreme programming software development methodology, for Smalltalk's SUnit. It allows writing tests, checking results and automated testing in Ruby.

Prawn::Icon provides various icon fonts including FontAwesome, PaymentFont and Foundation Icons for use with the Prawn PDF toolkit.

Metaclass is a Ruby library adding a metaclass method to all Ruby objects.

Pygmentize provides a simple way to call pygmentize from within a Ruby application.

Erubi is a ERB template engine for Ruby. It is a simplified fork of Erubis

This Ruby library is controlling and communicating with spawned processes. It is designed after Python's subprocess module.

Antwrap is a Ruby module that wraps the Apache Ant build tool. Antwrap can be used to invoke Ant tasks from a Ruby or a JRuby script.

This package provides a RBTree is a sorted associative collection that is implemented with a Red-Black Tree. It maps keys to values like a Hash, but maintains its elements in ascending key order. The interface is the almost identical to that of Hash.

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

This package provides a WebSocket server for Ruby.

Reline is a pure Ruby alternative GNU Readline or Editline implementation.

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