Hi. I have a new (to me) switch lite that I factory reset with plans to mod for running cfw, retro gaming, etc.
How deep into the setup process should I go? Leave it on language select and do the hardware mod? Set it up with a new dummy nintendo account? Log in with my own legit nintendo account (currently bound to a switch)?
And thanks!
Feel free to do with it as you like. You will be playing on the Sysnand that will continue to be able to go online in as is condition. You will create a copy of your Sysnand, called your Emunand, that will have all your modifications on it. You will want to block your Emunand from contacting Ninty via software settings. When you want to play a legit game Online you simply reboot into Sysnand again and play to your hearts content.
bottom line: there are no special considerations that need to be made. Enjoy your switch!