NextGraph: E2EE sync engine, SDK, graph DB, and reactive ORM

NextGraph is a protocol, a framework, and a platform that supports easy development of Local-First, decentralized, secure and private apps.

By combining the best of the local first world (Yjs, Automerge CRDT libraries), a graph database, DID (decentralized identifiers) for users and documents, and end-to-end encryption plus encryption at rest, we provide an SDK that offers all the requirements of portability, interoperability and security needed today for building a true alternative to Big Tech platforms and products.

This talk will be composed of two parts. Niko will first introduce the general architecture of our platform, engine, protocol and SDK, giving an overview of its components, and some details on the E2EE sync protocol, cryptographic capabilities/permissions/access control. We will show how we support any kind of CRDT, including Automerge and Yjs, and the CRDT for Graph database (RDF) that we have developed.

Then Laurin will introduce the new ORM TypeScript SDK for NextGraph that turns document/database records into ordinary, typed objects with two‑way binding. By proxying those objects and emitting signals, the SDK provides a framework‑agnostic reactive layer that integrates cleanly with React, Vue, and Svelte. And more frameworks could be easily added in the future.

CRDT support - The SDK works with Yjs, Automerge, and, most notably, RDF - a graph data format designed for application interoperability. The SDK includes a converter that transforms SHEX shapes (an RDF schema language) into TypeScript type definitions for type safety.

Reactive POJOs - Objects are wrapped in a proxy, so any property change triggers a signal, which updates both the UI and sends a JSON patch to the backend. Signals provide an efficient, event‑driven mechanism for state propagation and have been gaining popularity in modern front‑end ecosystems.

You will see a live demo walking through a simple property change, showing how the mutation is instantly persisted to the local database, reflected in UI components across React, Vue, Svelte, and synchronized with the network across devices and user accounts.