# Zero


> Zero is a new kind of sync engine powered by queries.


## Documentation

- [Introduction](https://zero.rocicorp.dev/docs/introduction)
- [Quickstart](https://zero.rocicorp.dev/docs/quickstart)
- [Add to Existing Project](https://zero.rocicorp.dev/docs/add-to-existing-project)
- [Samples](https://zero.rocicorp.dev/docs/samples)
- [Status](https://zero.rocicorp.dev/docs/status)
- [What is Sync?](https://zero.rocicorp.dev/docs/sync): A Slightly Opinionated Tour of the Space
- [When to Use](https://zero.rocicorp.dev/docs/when-to-use): And When Not To – A Quick Guide
- [Roadmap](https://zero.rocicorp.dev/docs/roadmap)
- [Schema](https://zero.rocicorp.dev/docs/zero-schema)
- [Reading Data (ZQL)](https://zero.rocicorp.dev/docs/reading-data)
- [Writing Data (Mutators)](https://zero.rocicorp.dev/docs/writing-data)
- [Custom Mutators](https://zero.rocicorp.dev/docs/custom-mutators)
- [Synced Queries](https://zero.rocicorp.dev/docs/synced-queries)
- [Authentication](https://zero.rocicorp.dev/docs/auth)
- [Permissions](https://zero.rocicorp.dev/docs/permissions)
- [ZQL on the Server](https://zero.rocicorp.dev/docs/zql-on-the-server)
- [Offline](https://zero.rocicorp.dev/docs/offline)
- [Provider Support](https://zero.rocicorp.dev/docs/connecting-to-postgres)
- [Feature Compatibility](https://zero.rocicorp.dev/docs/postgres-support)
- [React](https://zero.rocicorp.dev/docs/react)
- [SolidJS](https://zero.rocicorp.dev/docs/solidjs)
- [React Native](https://zero.rocicorp.dev/docs/react-native)
- [Community](https://zero.rocicorp.dev/docs/community)
- [Overview](https://zero.rocicorp.dev/docs/deployment)
- [Runtime Config](https://zero.rocicorp.dev/docs/zero-cache-config)
- [Inspector](https://zero.rocicorp.dev/docs/debug/inspector)
- [Permissions](https://zero.rocicorp.dev/docs/debug/permissions)
- [Slow Queries](https://zero.rocicorp.dev/docs/debug/slow-queries)
- [Replication](https://zero.rocicorp.dev/docs/debug/replication)
- [Query ASTs](https://zero.rocicorp.dev/docs/debug/query-asts)
- [OpenTelemetry](https://zero.rocicorp.dev/docs/debug/otel)
- [Release Notes](https://zero.rocicorp.dev/docs/release-notes)
- [Reporting Bugs](https://zero.rocicorp.dev/docs/reporting-bugs)
- [Open Source](https://zero.rocicorp.dev/docs/open-source)
- [LLMs](https://zero.rocicorp.dev/docs/llms)