There's nothing there except for placeholders. However, I'm interested, I'm kinda interested in the mini cfw.https://github.com/maorninja/Follow-up-Guide/wiki
This is a follow up to plailect's guide of what you should do.
DS flashcards are so cheap nowdays anyway. You CAN pick one up for less than $10, though I would go with something around $20 like the R4i Gold for a nicer UI and more reliable gaming.3DS games, just use freeShop and encTitleKeys.bin Updater. No need to worry about mentioning ISO sites if you just use this.
DS games, buy a DS flashcart. Like this one. DS ROMs are available if you google "game name ROM"
GBA games, just google "Virtual Console injects with Nintendo-styled 3D banners" and click the first result. I've got plenty there.
ShadowNAND isn't really meant to replace the CFW that boots from SD, so really there are no benefits. It's only really there just in case something happens to the arm9loaderhax.bin, the SD or the SD slot. If anything goes wrong, it still allows you to boot into a small CFW. Other than that you should continue to use luma3DS on it as normal.I followed the original plailects-guide. Now I see an update with ShadowNAND. What are the benefits if mine is currently booting Luma3DS from the SD card?