From my understanding on the 3DS you have to mutually register friend codes, that and the fact that the console is essentially dead means I'm not gonna add that in the form of a profile field like I did with the Switch. So just post it here and I'll likely add you.

My friend code is 4013-0352-0648

i already added u flash but for anyone else mine is 4270-7174-1866

Mine is 0259-1513-7114. Feel free to add

idk if this would go here but my pokemon pearl friendcode is 1380 3965 5314 if anyone wants to trade :)