Skipping Automatic Dependency Installation

By default, the deployment executor will attempt to install dependencies for your project by using the default dependency manager for the language (i.e. npm for nodejs or virtualenv for python). However, there may be scenarios where you may want to have more control over the dependency installation step (e.g. you are using yarn and/or a different version of node than the one that is installed by default).

This is enabled by skipping the default dependency installation step (under Advanced Settings in the UI), and setting a few pre-run commands and environment variables.