> There are plenty of pre-made decks for learning the basics of pretty much all the major languages.

I tried a few of them and the quality varies. The Arabic one I tried was very funny, it would show you something, like أ, and then ask: does it mean "Alif" the letter o does it mean: "How much wood would a woodchuck chuck if a woodchuck would chuck wood? A woodchuck would chuck how much a woodchuck would chuck if a woodchuck would chuck wood".

Pretty useless.