Homebrew Question OpenGL on Switch: EGL, glad, glm

[Schnekk]

So I want to start programming a 2D stuff with opengl. For this I am learning how to program opengl in c++ but with every more information I get ever and ever more lost. What is this EGL library I am barely finding about on the Internet? What is glad and this GLM? I am so lost right now, I just want to create awesome stuff but now I want to kill myself.

Please I need just quick explanation what purpose they serve or a quick guide what is required to programm opengl on the switch!
Greetings from Belarus

 

[masagrator]

EGL is an API used to communicate with hardware for OpenGL, OpenGL ES and OpenVG.
https://en.m.wikipedia.org/wiki/EGL_(API)

You need to use directly egl only if there is no opengl equivalent of it (f.e. eglSwapBuffers to push new frame to display).