Lua Carousel now comes with a comprehensive system of online help you can run on computer or phone: • A tutorial for using it tailored towards programmers • Exercises for learning programming • Lots of example programs you can run right from within it, clone and remix • Reference documentation for available capabilities, while carefully exposing the level in the stack that provides them. (I believe this is critical information for people to be aware of. Abstracting it is counter-productive.) Try it out by installing LÖVE for your platform. It's completely open source and live editable on a computer.