MameUI [formerly Mame32] is the GUI version of the M.ultiple A.rcade M.achine E.mulator, a program which seeks to document the internal hardware and code of all arcade games.
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