Hello! The thread name mostly about it :-)
A bit more: yesterday got a DSi with firmware version 1.0J. It had Unlaunch preinstalled (by the previous owner I guess), with HiyaCFW and TwilightMenu++. I couldn't find anything like nand.bin or band.dat on the DSi memory card so I'd like to ask...
I may try the new ram site, and download more RAM to my Switch. Not sure if ddr3 is the right ram
for it tho. Edit- no it uses floppy Ram, just like @AncientBoi