I have an o3ds on 9.2 that was running rxtools/gateway emunand. I successfully installed arm9 because the test binary makes my 3ds turn off when ever i press a button. Thing is I dont know what do next to make my emunand boot lol

Where do i get those firmware.bin files from? I think thats what I'm missinghttps://gbatemp.net/threads/reinand-mod-o3ds-n3ds-sysnand.411110/ you're going to want to set this up,,which basically involves copy the arm9loaderhax payload bin to your sd card as well as the rei folder (with proper firmware.bin and firmware90.bin)
edit: chris_247 beat me to the punch! lol