Dir returns the home directory for the executing user.

Expand expands the path to include the home directory if the path is prefixed with `~`.

GetBoolEnvVarOrDefault returns the boolean value specified in the environmential variable identified as name, or it returns the specified default value if the environmential variable is not found.

GetConfigDirs returns a list of location where configuration files can be located.

GetStringEnvVarOrEmptyString returns a string value found in the specified environmential variable or it returns an empty string value.

DisableCache will disable caching of the home directory.