This package provides a modest JavaScript framework for the HTML you already have.

ActionText edits and displays rich text in Rails applications.

Compose, deliver, receive, and test emails using the controller/view pattern. Including support for multipart email and attachments.

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.

This package provides a Ruby wrapper for the MRI 2.0 debug_inspector API.

Action Cable integrates WebSockets with Rails applications. Through WebSockets it allows for real-time features in web applications.

The With advisory lock gem adds advisory locking to ActiveRecord for PostgreSQL and MySQL. SQLite is also supported, but this uses the file system for locks.

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

Turbo aims to be as fast as single-page web application without having to write any JavaScript. Turbo accelerates links and form submissions without requiring server-side changes to the generated HTML. It allows carving up a page into independent frames, which can be lazy-loaded and operated as independent components. Finally, it helps making partial page updates using just HTML and a set of CRUD-like container tags. These three techniques reduce the amount of custom JavaScript that many web applications need to write by an order of magnitude. And for the few dynamic bits that are left, Stimulus can be used.

This package allows you to create an interactive Ruby session in your browser. Those sessions are launched automatically in case of an error and can also be launched manually in any page.

This gem is used to handle HTML sanitization in Rails applications. If you need similar functionality in non Rails apps consider using Loofah directly.

ActiveSupport is a toolkit of support libraries and Ruby core extensions extracted from the Rails framework. It includes support for multibyte strings, internationalization, time zones, and testing.

Bootsnap is a library that plugs into Ruby, with optional support for YAML, to optimize and cache expensive computations.

marcel provides MIME type detection using magic numbers, filenames, and extensions

railties provides the core Rails internals including handling application bootup, plugins, generators, and Rake tasks.

ActionMailbox receives and processes incoming emails in Rails applications.

ActionPack provides conventions for building and testing MVC web applications. These work with any Rack-compatible server.

Sprockets is a Rack-based asset packaging system that concatenates and serves JavaScript, CoffeeScript, CSS, LESS, Sass, and SCSS.

Provides Sprockets implementation for the Rails Asset Pipeline.

This package provides a C library for Broadcom BCM 2835 as used in the Raspberry Pi

This package contains device tree overlay binaries to support the WaveShare SpotPear TFT LCDs on the Raspberry Pi.

rpi-imager is graphical utility to easily provision and flash a memory card with an operating system image suitable for the Raspberry Pi single board computer.

This package provides a bootloader for the ARM part of a Raspberry Pi. Note: It does not work on Raspberry Pi 1.

This package package contains libraries to interface to EGL, mmal, GLESv2, vcos, openmaxil, vchiq_arm, bcm_host, VFC and OpenVG. It also provides the dtmerge, dtoverlay, dtparam, raspivid and tvservice commands, among others.