Configuration

Configurations are stored in a JSON file config.json but we allow overriding those values with environment variables. If, at any point in the code, the config is queried (config.get(key)) for a key that isn’t present in the top level of the JSON file, a warning is issued to add a default value to the JSON file. This helps ensure that we can track all possible configuration values in the JSON config rather than having to bookkeep them elsewhere.