If you use custom environment variables a lot, here's a generator for them: https://www.npmjs.com/package/@northscaler/config-custom-environment-variables-generator.

Sometimes for testing or DevOps, you need one script to load more than configuration. This is normally a challenge with node-config As a singleton, it returns the same configuration each time. To force node-config to reload the configuration, use the config-uncached module.