wish you luck as the activation was server side and you want to risk touching xecuter when nintendo have access to all their domains?
it is pointless to try hack sx os, the features it offeres are minimal, hdd loading and xci isnt a massive feat considering the wasted time trying to hack the os then the risks involved.
also note that its not yet known if sx os has a future anymore, there is a chance that it has been abandoned.
so again, wasting time for 2 features, which could be possible on free atmos, but its pointless as nsp formats are easily installed via usb from your computer to your console.
also it may sound good to dual boot both, but then you need to remind (which far too many never learn), if atmos supports a new fw, you cant update, it will break sx os unless they update (which people bitch as 11.1 is not mandatory and sx os has no support).
its best to pick your option and stick to it.
but to try hack what could be a dead os is pointless.