Make sure you're using this build, and that you have this on the root of your sd card. You'll also need a gba bios, but it shouldn't crash without it - it should just tell you.
Yes, but the Dreamcast had a MIPS-based CPU.
If you were to classify CPUs based entirely on whether or not they're RISC, the Gameboy Advance and DS (and 3DS) lines fall under that.
My bad, I was under the impression it was 64bit from some cursory reading I was doing.
Still, I'm sure it being MIPS-based at all makes it a bit easier on it.
N64 emulation is a lot better than it would be on the 3ds because it has a MIPS-based 64-bit processor.
Even then, it doesn't work very well - like another person said, only SM64 runs playably.
Yeah you can just reflash the sysnand. I mean, I'd definitely try to avoid doing it, because it is dangerous if you run out of charge or cosmic rays cause your SD card to disconnect, but you can do it.
eshop balance is stored on your eshop account, which is tied to something-or-other on your...
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