I think the MVCC features in Minuet are applicable in instances where immutability can be used as an optimization, such as Datomic. However, Datomic has a very specific data model and set of use cases which means they likely optimize in a variety of domain specific ways. More likely I would suspect Minuet is positioned to be the basis for a RDBMS storage engine, or on its own as a powerful key/value store.