I can use several languages, mostly Danish, Spanish and English. Those are the language languages I feel confident enough to translate my games into. And programming languages? I've made some tools in Python, such as one (I didn't publish) which can turn numbers into words and vice-versa. ("five hundred and eighty-two" becomes "582", and then it can be turned back into the name of the number in Danish, Spanish or English.) I've also played with C and C++, but I'm better at Python.
As for game engines, I've played with Godot, Ren'Py and Unity, but most with Godot and least with Unity.
Art: I've made some pixel art, some 2D triangle art, and even some fonts (one of those fonts appears in the logo of Sheep Monologue and in this page's banner).
Music: I can play several instruments, but the guitar is probably the one I'm best at. I mean the acoustic guitar, I don't play an electric one. Though I don't play it as much as when I lived in Spain.