Simon -- since you're the cocreator of Django, you might get a kick out of this: From loading up a Django environment to adding and rendering the first view takes less than a minute: https://gifs.amasad.repl.co/django.gif
Before starting this company I was a founding engineer on the React Native team where I focused speed of setting up and taking the drudgery out of cross-platform mobile dev. And before that I was a founding engineer at Codecademy where we were attacking the same problem from an education angle.
With Repl.it, however, we're determined to simultaneously solve the "getting started" problem while scaling the environment to allow real work. It's incredibly challenging but we've made great progress. If anyone is interested in working with us, collaborating, or if you're simply passionate about this problem and want to chat then I'd love to hear from you: amjad@repl.it