Default Phoenix assets without Node.js

I’m learning Phoenix with “Programming Phoenix 1.4” book, but I want to avoid using Node.js altogether. I’d also like to track assets in my repo.

The mix phx.new --no-webpack task not only skips setting webpack up, but also skips default assets creation.

Shall I just download phoenix.js and phoenix_html.js and concatenate them into app.js (and do similar thing with css files etc.), or maybe there’s an easier way?