Go to /vg/.
Look for /hbg/ (homebrew general)
Look for their 3ds hacking guide (Pialect should be the name)
Follow it like you're a slave in Mississippi looking for the North Star.
If you hear one of them crackers coming to get you, or in other words, you think you might have fucked up, use /hbg/ as a resource. It's probably the only place on 4chan that actually allows stupid questions and don't mind giving help.
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Freedom! (until Jim Crow)