Arduino - Install and Use Arduino Libraries

Create a Custom Arduino Add-On Library

Create Your Own Arduino Library - The Robotics Back-End

Load Arduino Libraries From Github in New Arduino Library Manager

Git Submodules for Arduino Library Management

Details of Using Arduino Libraries: Arduino Course 6.4

Arduino Hacks – Arduino libraries, what they are and how to install them

Guide for I2C OLED Display with Arduino | Random Nerd Tutorials