So I got a 20th anniversary pokemon n3ds and got Rxtools CFW on it, booting with ctrbootmanager. months and months ago. But I'm upgrading to a bigger microsd card. so I need to do the whole process of getting cfw again, but I read rxtools is no longer being worked on and apparently luma3ds is good and something called arm9hax exists. So what's the easiest and best way to set this all up again, with this stuff that's new to me. I'd also like to keep my game saves. Thanks so much for the help!