Start the server by running npm run start from this directory.
Run npm run watch in order to have the insert-skeleton-script.js script run automatically when you make changes.
You may need to do npm i -g npm-watch to install npm-watch globally before everything will work.
With the child_process module, it is possible to create a separate script so that npm run start and npm run watch always happen together and both processes log their output to the console. I have done this one time before.