Hey guys,
I just recently bought my 3DS a few weeks ago and wanted to jump right into the hacking scene. I was interested in hacking my 3ds without a flashcard and stumbled on a tutorial here: How to Hack the 3DS Step by Step.
The steps are quite clear for installing the custom firmware...
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