Config-fs is a key/value backed configuration file system. The daemon process synchronizes the content found in K/V store, converting the keys into files / directories and so forth. Naturally any changes which are made at the K/V end are propagated downstream to the config file system.By default the configuration directory is build from root "/", though yje -root=KEY can override this. A use case for this would be expose only a subsection of the k/v store. For example, we can expose /prod/app/config directory to /config while hiding everything underneath; Note, all dynamic configs take keys root "/" as their context, so in our case we expose the config files, while placing the credentials, values, config etc the dynamic config reference out of reach.