I did everything the gameplay works but certain areas freeze the game like few packs you buy, if you try to edit deck all cards gone and game freezes, and can't view cards menu. I dunno if I updated it wrong or did something but I did the update and did the mod.
Other then that the story mode is...
I know its a low priority but in the far future if you choose to translate the story there's a website online that already translated the first 3 chapters so this may save you bit time down the road.
There is a Citra core build for retroarch however it very unstable and not many games work for it. Many games freeze jitter or crash. Also they haven't updated it in ages.
Now for normal nds melon standalone is the best.