I have no idea how this program works [closed]

I’m a student who just started learning programming (Learned only until the level of AP Computer Science). I want to further study programming by analyzing one simple program that allows users automatically enter the zoom meeting, but I don’t know how I should analyze this program.

There are XXX main questions I have:

What is the usage each for Python, HTML, and TeX in this program?
How does this program connect different programming languages, and how does the program work when I run this program (I don’t know the mechanism)?
For the front-end of this program, does this program use Python GUI or HTML?

This is the link for the program:
https://github.com/lukekim0201/Zoom-Program-Revised.git