You’re not dumb at all, everybody starts somewhere. Jumping in head first is a great way to learn.
I won’t be incorporating any of the hackergadgets boards configs into my images because if you don’t have the board installed something’s won’t work right.
I have put together a package that will install some apps and configure the board here.
It is packaged for any debian-based distro, which Kali is. I have not tested it in Kali though. You should just be able to issue this command to install and configure it.
sudo apt update && sudo apt --install-recommends install hackergadgets-uconsole-aio-board
Let me know how it works for you and feel free to reach out if you have any more questions.