During this lecture, there will be many demonstrations. But nothing is better than doing it yourself. So, if you have a Gateway and a device, you will have the opportunity to do exactly the same demonstrations provided in this course. If you don't have hardware, then you will still be able to work on the LoRaWAN Server and the IoT platform.
But we know that it's sometimes difficult to set up a proper environnement without diving into complicated software installation. So this "HOW TO" section is here to provide a clear and easy way to execute simple operation such as "HOW TO setup Node-Red" or "HOW TO open a SSH connection".
You don't have to listen to all these videos now. If you want, you can just come back later when you feel that it's the right time for you to build a LoRaWAN network yourself !
Have fun !