# Synapse charm > Documentation for the Synapse charm, a Juju charm that deploys and manages Synapse, a Matrix homeserver, on Kubernetes. It covers deployment, SMTP integration, backup and restore, scaling and charm architecture. 2026 ## Pages in this subsection - [How-to guides](https://canonical.com/juju/docs/synapse-charm/latest/how-to/index.html.md): How-to guides for operating the Synapse charm, including SMTP, backups, and scaling. - [How to back up and restore Synapse](https://canonical.com/juju/docs/synapse-charm/latest/how-to/backup-and-restore/index.html.md): This document shows how to back up and restore Synapse. - [How to integrate with SMTP for sending notifications](https://canonical.com/juju/docs/synapse-charm/latest/how-to/configure-smtp/index.html.md): This document shows how to integrate Synapse with SMTP for sending - [How to horizontally scale](https://canonical.com/juju/docs/synapse-charm/latest/how-to/horizontally-scale/index.html.md): A Synapse deployment can scale horizontally by running multiple Synapse processes called workers. - [How to contribute](https://canonical.com/juju/docs/synapse-charm/latest/how-to/contribute/index.html.md): Familiarize yourself with contributing to the synapse charm documentation. ## Optional - [Top-level llms.txt](https://canonical.com/juju/docs/synapse-charm/latest/llms.txt): Complete documentation index.