I want this - but mobile first. Whenever I’m sitting on a bus or train for a short trip that doesn’t warrant bringing a laptop but there is a simple little twe

I want this - but mobile first. Whenever I’m sitting on a bus or train for a short trip that doesn’t warrant bringing a laptop but there is a simple little tweak that could be made in 10 mins. I would like to use a tool like this designed to be used on a mobile device. Also I think then people who only have mobile devices could also create their own software. It grates on me that in order to build mobile web applications you need a laptop or desktop.