Runtime configuration data that may be user specific or zettel specific
Some metadata of the runtime configuration may be overwritten in an user zettel. A subset of those may be overwritten in zettel that is currently used. This allows to specify user specific or zettel specific behavior.
The following metadata keys are supported to provide a more specific behavior:
|lang||Y||Y||Making it user-specific could make zettel for other user less useful|