How to download and setup glfw
Open terminal and run command
git clone https://github.com/go-gl/glfw.git
git clone is used to create a copy or clone of glfw repositories.
You pass git clone a repository URL. it supports a few different network protocols and corresponding URL formats.
Also you may download zip file with glfw https://github.com/go-gl/glfw/archive/master.zip
Or simply clone glfw with SSH
[email protected]:go-gl/glfw.git