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 A curated list of awesome C++ (or C) frameworks, libraries, resources, and shiny things. Inspired by awesome-... stuff.
 
 - [Awesome C++  ](#awesome-c--)
-	- [Standard Libraries](#standard-libraries)
-	- [Frameworks](#frameworks)
-	- [Artificial Intelligence](#artificial-intelligence)
-	- [Asynchronous Event Loop](#asynchronous-event-loop)
-	- [Audio](#audio)
-	- [Biology](#biology)
-	- [BitTorrent](#bittorrent)
-	- [Chemistry](#chemistry)
-	- [CLI](#cli)
-	- [Compression](#compression)
-	- [Concurrency](#concurrency)
-	- [Configuration](#configuration)
-	- [Containers](#containers)
-	- [Cryptography](#cryptography)
-	- [CSV](#csv)
-	- [Database](#database)
-	- [Data visualization](#data-visualization)
-	- [Debug](#debug)
-	- [Documentation](#documentation)
-	- [DSP](#dsp)
-	- [Font](#font)
-	- [Game Engine](#game-engine)
-	- [Graph](#graph)
-	- [GUI](#gui)
-	- [Graphics](#graphics)
-	- [Image Processing](#image-processing)
-	- [Internationalization](#internationalization)
-	- [Inter-process communication](#inter-process-communication)
-	- [JSON](#json)
-	- [Logging](#logging)
-	- [Machine Learning](#machine-learning)
-	- [Math](#math)
-	- [Memory Allocation](#memory-allocation)
-	- [Multimedia](#multimedia)
-	- [Networking](#networking)
-	- [Office Open XML](#office-open-xml)
-	- [PDF](#pdf)
-	- [Physics](#physics)
-	- [Reflection](#reflection)
-	- [Regular Expression](#regular-expression)
-	- [Robotics](#robotics)
-	- [Scientific Computing](#scientific-computing)
-	- [Scripting](#scripting)
-	- [Serialization](#serialization)
-	- [Serial Port](#serial-port)
-	- [Sorting](#sorting)
-	- [Video](#video)
-	- [Virtual Machines](#virtual-machines)
-	- [Web Application Framework](#web-application-framework)
-	- [XML](#xml)
-	- [Yaml](#yaml)
-	- [Miscellaneous](#miscellaneous)
+  - [Standard Libraries](#standard-libraries)
+  - [Frameworks](#frameworks)
+  - [Artificial Intelligence](#artificial-intelligence)
+  - [Asynchronous Event Loop](#asynchronous-event-loop)
+  - [Audio](#audio)
+  - [Biology](#biology)
+  - [BitTorrent](#bittorrent)
+  - [Chemistry](#chemistry)
+  - [CLI](#cli)
+  - [Compression](#compression)
+  - [Concurrency](#concurrency)
+  - [Configuration](#configuration)
+  - [Containers](#containers)
+  - [Cryptography](#cryptography)
+  - [CSV](#csv)
+  - [Database](#database)
+  - [Data visualization](#data-visualization)
+  - [Debug](#debug)
+  - [Documentation](#documentation)
+  - [DSP](#dsp)
+  - [Font](#font)
+  - [Game Engine](#game-engine)
+  - [Graph](#graph)
+  - [GUI](#gui)
+  - [Graphics](#graphics)
+  - [Image Processing](#image-processing)
+  - [Internationalization](#internationalization)
+  - [Inter-process communication](#inter-process-communication)
+  - [JSON](#json)
+  - [Logging](#logging)
+  - [Machine Learning](#machine-learning)
+  - [Math](#math)
+  - [Memory Allocation](#memory-allocation)
+  - [Multimedia](#multimedia)
+  - [Networking](#networking)
+  - [Office Open XML](#office-open-xml)
+  - [PDF](#pdf)
+  - [Physics](#physics)
+  - [Reflection](#reflection)
+  - [Regular Expression](#regular-expression)
+  - [Robotics](#robotics)
+  - [Scientific Computing](#scientific-computing)
+  - [Scripting](#scripting)
+  - [Serialization](#serialization)
+  - [Serial Port](#serial-port)
+  - [Sorting](#sorting)
+  - [Video](#video)
+  - [Virtual Machines](#virtual-machines)
+  - [Web Application Framework](#web-application-framework)
+  - [XML](#xml)
+  - [Yaml](#yaml)
+  - [Miscellaneous](#miscellaneous)
 - [Software](#software)
-	- [Compiler](#compiler)
-	- [Online Compiler](#online-compiler)
-	- [Debugger](#debugger)
-	- [Integrated Development Environment](#integrated-development-environment)
-	- [Build Systems](#build-systems)
-	- [Static Code Analysis](#static-code-analysis)
-	- [Coding Style Tools](#coding-style-tools)
+  - [Compiler](#compiler)
+  - [Online Compiler](#online-compiler)
+  - [Debugger](#debugger)
+  - [Integrated Development Environment](#integrated-development-environment)
+  - [Build Systems](#build-systems)
+  - [Static Code Analysis](#static-code-analysis)
+  - [Coding Style Tools](#coding-style-tools)
 - [Resources](#resources)
-	- [API Design](#api-design)
-	- [Articles](#articles)
-	- [Books](#books)
-	- [Coding Standards](#coding-standards)
-	- [Coding Style](#coding-style)
-	- [Podcasts](#podcasts)
-	- [Talks](#talks)
-	- [Videos](#videos)
-	- [Websites](#websites)
-	- [Weblogs](#weblogs)
-	- [Other Awesome Projects](#other-awesome-projects)
+  - [API Design](#api-design)
+  - [Articles](#articles)
+  - [Books](#books)
+  - [Coding Standards](#coding-standards)
+  - [Coding Style](#coding-style)
+  - [Podcasts](#podcasts)
+  - [Talks](#talks)
+  - [Videos](#videos)
+  - [Websites](#websites)
+  - [Weblogs](#weblogs)
+  - [Other Awesome Projects](#other-awesome-projects)
 - [Other Awesome Lists](#other-awesome-lists)
 - [Jobs](#jobs)
 - [Sponsors](#sponsors)
 - [Contributing](#contributing)
-			- [*If you see a project or link here that is no longer maintained or is not a good fit, please submit a pull request to improve this document. Thank you!*](#if-you-see-a-project-or-link-here-that-is-no-longer-maintained-or-is-not-a-good-fit-please-submit-a-pull-request-to-improve-this-document-thank-you)
+      - [*If you see a project or link here that is no longer maintained or is not a good fit, please submit a pull request to improve this document. Thank you!*](#if-you-see-a-project-or-link-here-that-is-no-longer-maintained-or-is-not-a-good-fit-please-submit-a-pull-request-to-improve-this-document-thank-you)
 
 ## Standard Libraries
 *C++ Standard Library - including STL Containers, STL Algorithm, STL Functional, etc.*
@@ -240,6 +240,7 @@ A curated list of awesome C++ (or C) frameworks, libraries, resources, and shiny
  * [cli](https://github.com/daniele77/cli) - A cross-platform header only C++14 library for interactive command line interfaces (Cisco style). [Boost]
  * [CLI11](https://github.com/CLIUtils/CLI11) - Header only single or multi-file C++11 library for simple and advanced CLI parsing. [BSD]
  * [clipp](https://github.com/muellan/clipp) - Easy to use, powerful and expressive command line argument handling for C++11/14/17 contained in a single header file. [MIT]
+ * [CPP-ARGON](https://github.com/SpectraL519/cpp-argon) - A header-only, feature-rich, concept-based argument parsing library for C++20. [MIT]
  * [cpp-terminal](https://github.com/jupyter-xeus/cpp-terminal) - Small header only C++ library for writing multiplatform terminal applications. [MIT]
  * [Ctrl+C](https://github.com/evgenykislov/ctrl-c) - Crossplatform C++11 library to handle Ctrl+C event in custom functions. [MIT]
  * [cxxopts](https://github.com/jarro2783/cxxopts) - Lightweight C++ command line option parser. [MIT]