This file is a template for ducky scripts.
I am not risponsible of what you do with these scripts, this is only for educational purpose.
First of all, you need and arduino board that is compatible with the Keyboard library. This boards are called Arduino Leonardo, or you can search a board with the ATmega34U4 microcontroller. You can find them in aliexpress for almost 3$, also you can find ones with a micro sd card reader.
You need to download the keyboard library. You can do this in the arduino IDE. In the tools bar just go to Sketch > Include Library > Manage Libraries. Then, just search for the library and install it.
After all of this, download the code, open it in the arduino IDE, after this, go to Tools > Board and search for your arduino. Congratulations, just upload the code and you will have and arduino rubber ducky.