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# Bridges

MindRoom uses [mautrix](https://docs.mau.fi/bridges/) bridges to connect external messaging platforms to Matrix. Bridges run as appservices alongside Synapse, creating ghost users for external contacts and relaying messages bidirectionally.

## Available Bridges

| Bridge | Platform | Mode | Status |
|--------|----------|------|--------|
| [Telegram](telegram.md) | Telegram | Puppet (login as yourself) | Available |
| Slack | Slack | - | Planned |
| Email | IMAP/SMTP | - | Planned |

## How Bridges Work

Each bridge registers as a Matrix [Application Service](https://spec.matrix.org/latest/application-service-api/) with Synapse. The bridge:

1. Creates ghost users on Matrix for external contacts
2. Creates Matrix rooms for external chats
3. Relays messages between the external platform and Matrix in real time

In **puppet mode**, you log into your real account on the external platform. Your messages appear as coming from you on both sides, not from a bot.

## Adding a New Bridge

1. Create a config directory: `telegram-bridge/`, `slack-bridge/`, etc.
2. Add the bridge service to `compose.yaml`
3. Generate a registration file and mount it into Synapse
4. Add the registration path to `homeserver.yaml` under `app_service_config_files`
5. Restart Synapse and start the bridge
