DefraDB
DefraDB is a Peer-to-Peer Edge Database
...Its data model, powered by the convergence of MerkleCRDTs and the content-addressability of IPLD, enables a multi-write-master architecture. It features DQL, a query language compatible with GraphQL but providing extra convenience. By leveraging peer-to-peer networking it can be deployed nimbly in novel topologies. Access control is determined by a relationship-based DSL, supporting document or field-level policies, secured by the SourceHub network. DefraDB is a core part of the Source technologies that enable new paradigms of decentralized data and access-control management, user-centric apps, data trustworthiness, and much more.