The **mongodb‑livedata‑server** package extracts Meteor’s live‑data layer into a standalone, TypeScript‑based npm module that combines a MongoDB change feed (via polling or oplog tailing) with a DDP server over WebSockets. It lets any Node.js app—e.g., an Express server—define Meteor‑style methods and publications using `LiveCursor` to automatically push database updates to connected clients without needing Meteor’s Fibers or other dependencies, making it useful for developers who want Meteor‑style real‑time sync or are migrating away from Meteor.