There's Datascript[0] and Datomic[1]. While not "identical", they are definitely complimentary. There's a (now defunct) library[2] for keeping them in sync too.

There's Datascript[0] and Datomic[1]. While not "identical", they are definitely complimentary. There's a (now defunct) library[2] for keeping them in sync too. 1: https://github.com/tonsky/datascript https://github.com/tonsky/datascript 2: https://www.datomic.com/ https://www.datomic.com/ 3: https://github.com/metasoarous/datsync https://github.com/metasoarous/datsync