Thanks for explanation, makes perfect sense.
But is it possible in this situation to use nrf54 DK only as a J-Link to program for Xiao nrf52840? Or when DK is connected to the PC it takes over and “fools” the VSCode being the “main” board to program? Because for a non-DK board, as I understand, NCS provides all the dev/debug feauters via J-link. Sorry, I feel like you have answered this question already, but I just didn’t get it 