This tutorial doesn't need to use any cloud provider, we are using bare metal Raspberry PI 4 nodes with minimun 4 GB RAM.
Depending on the country you live in, may be tricky or expensive to buy RPI 4 nowadays (like BR is ¯_(ツ)_/¯).
I prefer to work with Terminator. Please follow this tutorial to learn how to install and use it.
The use of Terminator is optional and not required to complete this tutorial.