I'm looking for help with fairbase rules

Hello everyone
I know this is a topic already discussed in many other chats in this group

But I would like to ask if any of you can make a video tutorial from A to Z in the creation of firebase rules both from the fairbase side and from the codular side, what to set both

Thank you very much and obviously I would like to specify that if I wrote it is because I didn’t find anything of particular interest to me or that could solve my problem