Create a Joystick Using the Arduino Joystick Library 2.0 : 12 Steps (with Pictures) - Instructables
Programming Ponderings: Arduino Joystick Library
Programming Ponderings: Arduino Joystick Library - Version 2.0
GitHub - MHeironimus/ArduinoJoystickLibrary: An Arduino library that adds one or more joysticks to the list of HID devices an Arduino Leonardo or Arduino Micro can support.
Arduino Nano - Joystick | Arduino Nano Tutorial
GitHub - sparkfun/SparkFun_Qwiic_Joystick_Arduino_Library: An Arduino library to read the SparkFun Qwiic Joystick. https://www.sparkfun.com