You will only have to use one settings file. For more info about this take a look at: https://github.com/usil/nodeboot-spa-server.

• Just modify the included settings.json file, with env variables that you need.
• Only create one build instead of creating one build for each stage (testing, production, development, etc). Just modify or replace the settings.json file.
• You can change the name of the file if you desire to do so, then you will need to also modify the custom-webpack.config.js file.