Do I need to use a "fresh" MicroSD card every time I install NVRAM? Why do I have to do that anyway (use a different MicroSD card)? Just curious; I like learning about this type of stuff.
Not for the NVRAM, but for installing the mset cia. A spare microSD is needed because Gateway will boot into Gateway mode on the sysNAND if emuNAND is not yet set up on an SD card, and you need to boot into sysNAND to install the cia.