Welcome
You have chosen the path of being a Contributor and to understand the project on a deeper level! I will explain certain things and i will do my best to convey my knowledge but you have to bring some prerequisites, this is not a Software Engineering or Electronics course, i assume that you have very basic knowledge in those domains since it will be required to follow along.
What can you expect from this Documentation?
I will provide Explanations in different forms like in plain text, Diagrams, Photos or even Videos. The Goal is for you to understand the Project on a level that you can start working on it when you have finished the Materials
Order
Theoretically you can read the User docs first and then the Contributor docs, or the other way around. Both are standalone documentations with a different goal, if you intent to read the Contributor docs anyway, I would suggest reading them before you build the product along with reading the User docs because then you will understand what you are doing along the way and it'll be much more fun to build!
What if you get stuck
If the Contributor docs bring you to a point where you don't know whats happening anymore and you feel lost, take a break, make a step back Focus on the basics and try to learn what you don't understand. It's absolutely okay and encouraged to maybe watch some Youtube tutorials or read articles that help you understanding these docs