The Boltzmann command-line interface (CLI) creates and updates a node project for you, with a boltzmann.js file created from a template to your specification, a package.json naming the required dependencies and some useful run scripts, and a linter configuration.

Boltzmann's built-in features are configurable using environment variables.

This document covers the built-in middleware Boltzmann makes available. Some middleware is automatically installed by Boltzmann when scaffolded with certain feature flags. Other middleware you need to attach yourself, either to specific handlers or to your app.