Gamebuino library was a little friendlier but Pokitto has a living and very active community and that's far superior IMHO. Calling the library functions is the easy part, learning C++ will be the difficult part and that's where the community will help you. BTW the library in which I wrote this game (SAF) lets you program the game so that it will automatically run on both Pokitto and GB meta, without you having to worry about Pokitto/Gamebuino specific code, and it will also run on PC etc.
thats cool af, im currently learning pokitto, i started today, already wrote my first tutorials for it too https://talk.pokitto.com/t/very-beginner-friendly-tutorial-0-1-how-to-create-a-s...
i noticed the tutorials weren't the best for beginners so i decided to make my own