SolidState

A graph-based realtime replication engine for creating offline first multiplayer applications. SolidState can replicate data peer-to-peer, through a persitent triplestore, or on Solid PODs.

Usage

See the docs

Development

To develop…

npm ci
npm run dev
npm run test:dev

To release…

npm release

Notes

Solid Pods are downstream from local device stores. The idea is that Solid pods only reflect data states that are contemporaneous with the users authenticated session.

Starting with a simple use case,

[ User A Device ] => [ User Pod ]

This gets more complex when we want to add additional users and/or additional devices.

[ User A Device ] => [ User Pod ]
      ||
[ Sync Server ]
      ||
[ User B Device ] => [ User Pod ]

However, Local stores may need to pull data from a solid pod as an upstream source in the case of multiple user devices, or a cleared device storage:

[ User Device A ] => [ User Pod ] => [ User Device B ]

The alternative to this is to connect to a sync server:

[ User Device A ] => [ User Pod ]
      ||                 ^
[ Sync Server ]          ||
      ||                 ||
[ User B Device ] ========|

Ideally a single-user sync will avoid a sync server. We'll see.

Can we encrypt the sync server, maybe with a shared secret? When inviting a user to share a graph, the two required bits of information would be the graph url and the graph secret.