All true I guess. I would still expect a vcs + command line familiarity and text editor for any developer a requirement. I would also be surprised if there was

All true I guess. I would still expect a vcs + command line familiarity and text editor for any developer a requirement. I would also be surprised if there wasn't an alternative for storage that needs to be learned, for another language. So even eliminating js, html and css, there is a UI toolkit of some sort to learn, a storage mechanism to learn. The layers are still there.