I have a 9.0 N3DS , what can I do with it?

personal hello , okay, I 'm from Brazil , I have some doubts that I would like to take with you , I have at hand a N3DS XL, he is in version 9.0.0.20 , I saw here several ways to install an cfw and emunand but I do not know where to start,
I have here with me for a Sky3ds , and through it can have access to Ninjahax and tb the Zelda OoT which has an exploit for the Gateway

My doubts

I want to install an CFW supporting emunand is possible ?

Knew the Rxtools , will support N3DS , should I...

I have a 9.0 N3DS , what can I do with it?