redsea is a lightweight command-line FM Radio Data System (FM-RDS) decoder. Redsea can be used with any RTL-SDR USB radio stick with the rtl_fm tool, or any other software-defined radio (SDR) via csdr, for example. It can also decode raw ASCII bitstream, the hex format used by RDS Spy, and audio files containing multiplex signals (MPX).

WSJT-X implements communication protocols or modes called FT4, FT8, JT4, JT9, JT65, QRA64, ISCAT, MSK144, and WSPR, as well as one called Echo for detecting and measuring your own radio signals reflected from the Moon. These modes were all designed for making reliable, confirmed QSOs under extreme weak-signal conditions.

This library contains VOLK kernels of hand-written SIMD code for different mathematical operations used by GNSS-SDR, mainly with 8-bit and 16-bit real and complex data types, offering a platform/architecture agnostic version that will run in all machines, plus other versions for different SIMD instruction sets.

qdmr is a graphical user interface (GUI) application that allows one to program several types of DMR radios. It is comparable to the Customer Programming Software (CPS) bundled with these radios but aims to be a more universal tool.

To install the qdmr udev rules, you must extend udev-service-type with this package. E.g.: (udev-rules-service 'qdmr qdmr).

Ragel compiles executable finite state machines from regular languages. Ragel targets C, C++, Obj-C, C#, D, Java, Go and Ruby. Ragel state machines can not only recognize byte sequences as regular expression machines do, but can also execute code at arbitrary points in the recognition of a regular language. Code embedding is done using inline operators that do not disrupt the regular language syntax.

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

This gem can compare HTML and assert certain elements exists. This is useful when writing tests.

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

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

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

Active Record connects classes to relational database table to establish an almost zero-configuration persistence layer for applications.

ActiveStorage integrates file storage services with Rails applications, allowing files to be attached to ActiveRecord models.

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

ActiveJob allows declaring job classes in a common way across Rails applications.

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.

Provides Sprockets implementation for the Rails Asset Pipeline.

ActionMailbox receives and processes incoming emails in Rails applications.

GlobalID provides a way to generate URIs from a model in Ruby that uniquely identify it.

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

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

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

This package provides support for using RSpec to test Ruby on Rails applications, in pace of the default Minitest testing library.

ActionText edits and displays rich text in Rails applications.

This package provides a toolkit for building modeling frameworks like Active Record. ActiveSupport handles attributes, callbacks, validations, serialization, internationalization, and testing.