Homebrew Emulators for YSMENU on r4 cart for DS/Lite

[CaK]

I would like to get some emulators for my DS, I am using just the YSMenu on a r4 gold pro 2020 cartridge, I want to use NES, SNES, Commodore 64, Apple II, DOS, GameBoy Advance, GameBoy Color, and the original GameBoy games. For the most part copying the emulator root to the root of the SD card is just copy and paste. I understand that I might need a BIOS in order to run some of the emulators.

 

[CaK]

I just don’t know where to put the BIOS at. I guess if I don’t get any replies sometime within the next week than I can always use YouTube for some video tutorials.

 

[RocketRobz]

Try asking here.
Also, please don't follow video guides. They tend to get outdated quickly.