Hi,
After cleaning sysnand with haku33 my switch bricked so I updated fusee and atmosphere followed these instructions "boot atmosphère 1.6.1 or higher on sysmmc.
To be sure that you are using sysmmc, you can inject hekate, and select "emuMMC" -> "Change emuMMC" -> "Disable" (in the upper right...
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