NewBuilder create new instance of [config.Builder] implementation.

NewEnvVarsMapSource is same as NewEnvVarsSource except the values come from the user-supplied map.

NewEnvVarsSource creates configuration source from environmental variables in the same way ASP.NET does.

NewJsonSource creates configuration source for Json which implements [config.Source].

JsonSource implements [config.Source] interface.

Builder builds a unified [config.Config] object from multiple Sources.

Config is a simplified cut-down version of ASP.NET IConfiguration interface.

Entry is a configuration entry combining key, value and the source of the value.

RootConfig is the main top-level configuration object which aggregates configuration from multiple configuration sources and provides and "effective configuration".

Source is a common interface for types which can provide Config, e.g.