If you want to mimic a more production like situation you might use this workflow: Create a package of your submodule locally: cd /path/to/your/module npm pack This will create a .tgz file of your package in /path/to/your/module Install the local package of the submodule in your application: cd /path/to/your/application npm install /path/to/your/module/<YourModule>-<YourModulesVersion>.tgz

Rails' default approach to log everything is great during development, it's terrible when running it in production. It pretty much renders Rails logs useless to me.

Debug mode allows you to see only the data generated by your device while validating analytics and also solves the purpose of having separate data streams for staging and production (no more separate data streams for staging and production).

one should not upgrade a production environment without extensive testing. I prefer to not upgrade prod at all. Instead, I create a new instance with latest everything, host my apps there, test everything out, and then make it production.

The following options are ideal for development:

Some of these values are suited for development and some for production. For development you typically want fast Source Maps at the cost of bundle size, but for production you want separate Source Maps that are accurate and support minimizing.