Query Expression Meaning
 Zettel that contains some configuration data for the Zettelstore
 40 recently created zettel
 40 recently updated zettel
 40 random zettel, ordered by zettel identifier
 Zettel with invalid / dead links
 Zettel that are not referenced by other zettel
 Zettel without tags
 Zettel with an expire date, ordered from the nearest to the latest
 Zettel within the context of the given zettel
 Redirect to a random zettel