M4XW specifically said there are no release notes, no support, nothing. This is not intended as a release. This is merely a super-alpha build he compiled and put up on his host and made a quick post. Its just a test build and future changes will be merged upstream with retroarch for a full official release.
He did confirm this uses hardware acceleration with the new libnx, and thats literally the only detail he is sharing.
After testing I can say that you should wait. Its not really playable at this point. Also, you should know preformance wont really increase until there is a dynarec implementation. So don't hold your breath for a build next week! There's a bounty on the dynarec.
I updated my post on the first page with more information to help you run this if you desire to test.