AddConfigKey registers a new config key to be loaded from config files with Viper and/or overriden via the CLI.

AddDependency registers a dependency to provide to fx.

AddStartable registers a startable.

NewCLI creates a new CLI instance.

Dig manages and creates dependencies.

CLI builds and serves the CLI for *launching* the Beneath backend (*not* the Python-based CLI for local authentication, creating streams, etc.).

ConfigKey represents a config key and optionally a default value.

Lifecycle runs one or more Runables.

Startable is a service that can be started with the start command.

Runable should implement a Run function that returns nil on success, an error on failure, and stops gracefully if the ctx is cancelled.