o3ds I would downgrade to 9.2 and then install arm9loader hax so you can install hombrew launcher as a home menu icon. You can't downgrade from 11.0 at the time of this post, but you can use the o3ds browserhax to install something like basehaxx to a physical copy of ORAS, making sure when installing it to set it to use the payloads for n3ds 11.0. Then you can load homebrew from the n3ds as well. But you will not be able to downgrade the n3ds until a kernel exploit is found for 11.0, and that's IF an exploit is found.