Just want to make sure I'm not throwing money away and was hoping someone can confirm my thought process.
My jig arrived yesterday. Using Hekate, I backed up my clean sysNAND, installed emuNAND, and put 90DNS on both the sysNAND and emuNAND. Later in the day, I started putting homebrew and other hackery on the Switch, but after doing so I realized I had selected the "CFW (sysNAND)" option from Hekate instead of the "CFW (emuNAND)" option. I double-checked that the sysNAND was using 90DNS and then restored the clean sysNAND I had created earlier in the day. After verifying there were no issues with the restore, I set up what I wanted to set up on the emuNAND.
I really want to play Super Mario Maker 2 online, so I was planning on buying a physical copy later today and playing it on the now-clean sysNAND. If I'm understanding correctly, I dirtied my sysNAND by using CFW / homebrew on it (albeit very briefly), but since I was on 90DNS from the point it got dirtied to when I restored the clean sysNAND, I should be alright now using the sysNAND online with legitimately purchased games. Is this correct?
Is there any reason I should ever select the "CFW (sysNAND)" option from Hekate? It feels like an accident waiting to happen if I accidentally click it at any point when my sysNAND has a proper Internet connection set up -- can I disable the option somehow?