That's not the best way, if you have a USB of decent size handy, you should try devolution.
It has extremely high compatibility, but you can only use it for games you own.
You have to rip your game to USB and put the ISO in a folder called games, then run it with a loader that supports devolution. The sample loader that comes with it is good enough for the most part.
When you run a game, you must insert the disc of the game you are going to play, you only need to do that once for each game you have.
If you don't already have a USB loader capable of ripping games, I recommend just finding cleanrip. It works well.
Dios Mios and Nintendont have their share of problems with
save data redirection. Plus Nintendont kinda sucks in it's current state. Low game compatibility makes it rather undesirable.
Plus Dios Mios requires additional mods and highly specific formatting to work properly. Not sure about nintendont. Devo is far simpler in comparison.