I found this application called 3SharpView that communicates with the 3DS wirelessly to transmit inputs so they can be visualized on the computer screen. I'm just starting to practice runs for this game and I think seeing my inputs in post would be cool for both me and whoever watches. However, would this even be allowed? I know NTR isn't for submitting runs but maybe this is different. According to the creator of the app, "this does not force-enable the higher clock speed on the new 3DS, so you would not need to worry about running into illegitimate faster load times or less-lag in games." If that means anything to speedrunning

If you're not using the software itself to record the run, it should theoretically be fine. A better way to test if that is the case is to see a full run and compare it accordingly. Not making any final decisions for now, though.