inf-ruby provides a Read Eval Print Loop (REPL) buffer, allowing for easy interaction with a Ruby subprocess. Features include support for detecting specific uses of Ruby, e.g., when using Rails, and using an appropriate console.

If you are using Guix shell with manifest.scm, the inf-ruby-wrapper-command customization variable could be helpful.

Propshaft is an asset pipeline library for Rails. It's built for an era where bundling assets to save on HTTP connections is no longer urgent, where JavaScript and CSS are either compiled by dedicated Node.js bundlers or served directly to the browsers, and where increases in bandwidth have made the need for minification less pressing. These factors allow for a dramatically simpler and faster asset pipeline compared to previous options, like Sprockets.

Immutable extensions to objects

Memoize method return values

Flamegraph support for arbitrary ruby apps

This package provides telnet client functionality.

Documentation at https://melpa.org/#/poly-ruby

Minimal embedded v8 engine for Ruby

Minimal embedded v8 engine for Ruby

Minimal embedded v8 engine for Ruby

ActionText edits and displays rich text in Rails applications.

IO.console adds console capabilities to Ruby IO instances.

This library provides arbitrary-precision decimal floating-point number class.

Run all possible enumerable methods in concurrent/parallel threads

ActionView provides conventions and helpers for building web pages in Ruby.

Rspec-core provides the RSpec test runner and example groups.

Rspec-core provides the RSpec test runner and example groups.

Middleware is a generalized implementation of a middleware abstraction for Ruby.

This package provides a subset of the BCP 47 spec.

This library integrates the SASS stylesheet language into Ruby on Rails.

This library provides a simple API for XML processing in Ruby.

This library provides Ruby bindings for the Mac OSX FSEvents API.

This package provides a library implementing patterns that behave like regular expressions.

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