syn

What is syn and what is it for?

syn is a software library for building Holochain apps in which several people work on the same document at once and each person's changes appear for the others as they are made. It supplies the shared-state engine and ready-made interface pieces, leaving the app developer to describe the shape of their document and how to draw it.

syn is a library for developers building Holochain apps that need live, shared state — the kind of software where two or more people work on the same document at the same time. It ships as a small set of JavaScript packages that can be added to a Holochain app: a client that talks to the app's backend, a store that handles documents, workspaces and sessions, and interface elements for common collaborative tasks such as editing text.

The shared document is treated as mergeable data, so changes from different people combine without a central server settling them. Participants pass their edits directly to one another over Holochain's peer-to-peer signals as they type, and the collected state is committed to the distributed hash table at intervals, which is what gives the document durability and data integrity.

The repository includes a sample application, SynText, that demonstrates collaborative text editing, along with a development setup that runs several participants at once so the synchronisation can be seen happening. The project's documentation site covers the design and how to use the packages.

From 2 public sources, checked 23 September 2026.