I'm not sure it's possible on 6.0. But I read somewhere you can install the NSP on 5.1 and it won't require to link an account.
Apparently if you use SX OS you can bypass the linked account check on 5.1.
Thank youGot the info in this thread: https://gbatemp.net/threads/nes-online-modification-tool.519556/
I can't validate that it works though as I'm on 6.0. However I can tell for a fact that on 6.0 with SX OS you do need a linked account.
EDIT: Well this was actually debunked a few messages below in the same thread; sorry for the confusion. Looks like that's not possible at the moment.
Thank you
mind filling us in?
yea using the most tie SXOS, have the NES Online Emulator at the first day, never get a message to link my acc