Hello @Atia Issac, welcome to the community space!! It is a pleasure to meet you.
There are some resources to get you started. For example, there is one thread you might want to take a look at : Setting up wifi in rural area South Africa
There is also a link within that thread around how to set up a CN: https://internetfreedomfestival.org/wiki/index.php/Community_Updates#July_11 .
This is just a starting place, but perhaps you have some specific questions around starting a CN? Please do pose the question here.
Cheers! kathleen