To enable the [Google Chat](https://chat.google.com/) bridge, add the following configuration to your `inventory/host_vars/matrix.DOMAIN/vars.yml` file:
If you'd like to use [Double Puppeting](https://docs.mau.fi/bridges/general/double-puppeting.html) (hint: you most likely do), you have 2 ways of going about it.
The bridge will automatically perform Double Puppeting if you enable the [Appservice Double Puppet](configuring-playbook-appservice-double-puppet.md) service or the [Shared Secret Auth](configuring-playbook-shared-secret-auth.md) service for this playbook.
Enabling [Appservice Double Puppet](configuring-playbook-appservice-double-puppet.md) is the recommended way of setting up Double Puppeting, as it's easier to accomplish, works for all your users automatically, and has less of a chance of breaking in the future.
Enabling double puppeting by enabling the [Shared Secret Auth](configuring-playbook-shared-secret-auth.md) service works at the time of writing, but is deprecated and will stop working in the future.
Once the bot is enabled you need to start a chat with `googlechat bridge bot` with handle `@googlechatbot:example.com` (where `example.com` is your base domain, not the `matrix.` domain).
Send `login` to the bridge bot to receive a link to the portal from which you can enable the bridging. Open the link sent by the bot and follow the instructions.
Automatic login may not work. If it does not, reload the page and select the "Manual login" checkbox before starting. Manual login involves logging into your Google account normally and then manually getting the OAuth token from browser cookies with developer tools.
Once logged in, recent chats should show up as new conversations automatically. Other chats will get portals as you receive messages.
You can learn more about authentication from the bridge's [official documentation on Authentication](https://docs.mau.fi/bridges/python/googlechat/authentication.html).
After successfully enabling bridging, you may wish to [set up Double Puppeting](#set-up-double-puppeting), if you haven't already done so.