Thank you! If you thought these JS based app development was fast, you're in for a real treat! Check out these apps I wrote as exercise: https://github.com/gliechtenstein/botlist.json & https://github.com/gliechtenstein/kitty.json
I built these in around 15 minutes each, and you can too, once you get used to the markup you can too (which also is great since all you need to learn is the consistent JSON syntax which works for actions, view layouts, and styling. There is no real "environment setup" and "becoming a programmer" process that most people need to go through just to get anything running).