Fetch configuration from the environment.

Presently, config is stored statefully in an `atom` after initial load.

Load configuration from environment variables.

Load configuration from the filesystem.

Error handling utility functions.

Contains a health check protocol which ought to be implemented by components whose
state might be healthy or unhealthy.  Most commonly testing for the liveness of an
underlying datastore.  This could be useful with a Kubernetes liveness probe,
for instance.

Kubernetes configuration and deployment helpers.

Option monad style exception handling.

Miscellaneous utility functions.