Trouble with Mac

[madelineleighsmith]

Hi! I'm a new coder and having trouble downloading the project in order to actually use the software. I have never used GitHubI feel pretty dumb asking because I've combed through the directions and can't understand them. I'm running on macOS Catalina. I want to use this software to design a drone to carry a rocket. I would really appreciate someone pointing me to a tutorial that would be helpful in downloading the software. Thanks!

Maybe section 2 in this doc would be helpful?
https://github.com/mit-gfx/multicopter_design/blob/master/docs/user_guide.pdf

[madelineleighsmith]

I am confused on 2.4.2. I was able to clone using git but I'm not sure how to download libraries. What program do I use and how do I reach a point where I can enter in the code from the provided script?