# Zero


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


## Documentation

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