If writing everything in one language is your goal, then you are severely limiting yourself.

The beauty of Make is that it doesn't care what languages the scripts are written that it's running.

In my JS projects I typically have Makefiles that use a combination of: JS, bash and Python

If you compile NodeJS from source, guess what command you have to type in...

I feel being more open minded in terms of programing languages will make you a better and more powerful programmer.