I do all my CI/CD orchestration around node and JavaScript, even for applications/services not using JS.
React, material-ui, redux, react-jss etc, all JavaScript.
Express, cocket.io, hapi, etc... all JavaScript.
I'm not sure where you are coming from here. As to your reference of Make... you don't have to write npm before you can use npm... the same argument is true of JS tooling.
As to your shell scripts, do they (including your make configuration) run in Windows, Linux and Mac without issue? My Node/JS scripts do.