App Deploy vs. Updating

I have an app that uses a node_module but it has to be built for the raspberry pi every time I deploy a new change. I have, of course, been using a text editor to make small changes on the Pi but then I have to copy and paste into my copy locally. It’s a wee bit of an annoyance.

Being that most changes occur only on the app.js and config.yaml, is there a way we can just update specific files in the app instead of deploying the whole app?