SL

Sliding Sync Proxy

Standalone sync proxy enabling fast Matrix clients

Matrix & XMPP ★ 282 stars Medium setup Apache-2.0

The Sliding Sync Proxy is a standalone server that implements the MSC3575 sliding sync protocol in front of a Matrix homeserver. It enables fast, modern clients like Element X before native homeserver support.

Key features

  • Implements sliding sync protocol
  • Enables fast Element X clients
  • Sits in front of any homeserver
  • Postgres-backed state

Pros & cons

Strengths

  • Released under the Apache-2.0 license
  • First-class Docker support for quick deployment
  • Written in Go
  • Tiny footprint — runs in 256 MB RAM

Trade-offs

  • Being superseded by native support
  • Extra component to run

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