Add documentation for mautrix-bluesky.

README.md

@@ -117,6 +117,7 @@ Bridges can be used to connect your Matrix installation with third-party communi
 | [mautrix-gmessages](https://github.com/mautrix/gmessages) | ❌ | Bridge to [Google Messages](https://messages.google.com/) | [Link](docs/configuring-playbook-bridge-mautrix-gmessages.md) |
 | [mautrix-whatsapp](https://github.com/mautrix/whatsapp) | ❌ | Bridge to [WhatsApp](https://www.whatsapp.com/) | [Link](docs/configuring-playbook-bridge-mautrix-whatsapp.md) |
 | [mautrix-wsproxy](https://github.com/mautrix/wsproxy) | ❌ | Bridge to Android SMS or Apple iMessage | [Link](docs/configuring-playbook-bridge-mautrix-wsproxy.md) |
+| [mautrix-bluesky](https://github.com/mautrix/bluesky) | ❌ | Bridge to [Bluesky](https://bsky.social/) | [Link](docs/configuring-playbook-bridge-mautrix-bluesky.md) |
 | [mautrix-twitter](https://github.com/mautrix/twitter) | ❌ | Bridge to [Twitter](https://twitter.com/) | [Link](docs/configuring-playbook-bridge-mautrix-twitter.md) |
 | [mautrix-googlechat](https://github.com/mautrix/googlechat) | ❌ | Bridge to [Google Chat](https://en.wikipedia.org/wiki/Google_Chat) | [Link](docs/configuring-playbook-bridge-mautrix-googlechat.md) |
 | [mautrix-meta](https://github.com/mautrix/instagram) | ❌ | Bridge to [Messenger](https://messenger.com/) and [Instagram](https://instagram.com/) | Link for [Messenger](docs/configuring-playbook-bridge-mautrix-meta-messenger.md) / [Instagram](docs/configuring-playbook-bridge-mautrix-meta-instagram.md) |

docs/configuring-playbook-bridge-mautrix-bluesky.md

@@ -0,0 +1,68 @@
+# Setting up Mautrix Bluesky bridging (optional)
+
+<sup>Refer the common guide for configuring mautrix bridges: [Setting up a Generic Mautrix Bridge](configuring-playbook-bridge-mautrix-bridges.md)</sup>
+
+The playbook can install and configure [mautrix-bluesky](https://github.com/mautrix/bluesky) for you, which provides a bridge to [Bluesky](https://bsky.social/about).
+
+See the project's [documentation](https://github.com/mautrix/bluesky/blob/master/README.md) to learn what it does and why it might be useful to you.
+
+## Prerequisite (optional)
+
+### Enable Appservice Double Puppet
+
+If you want to set up [Double Puppeting](https://docs.mau.fi/bridges/general/double-puppeting.html) (hint: you most likely do) for this bridge automatically, you need to have enabled [Appservice Double Puppet](configuring-playbook-appservice-double-puppet.md) service for this playbook.
+
+See [this section](configuring-playbook-bridge-mautrix-bridges.md#set-up-double-puppeting-optional) on the [common guide for configuring mautrix bridges](configuring-playbook-bridge-mautrix-bridges.md) for details about setting up Double Puppeting.
+
+## Adjusting the playbook configuration
+
+To enable the bridge, add the following configuration to your `inventory/host_vars/matrix.example.com/vars.yml` file:
+
+```yaml
+matrix_mautrix_bluesky_enabled: true
+```
+
+### Extending the configuration
+
+There are some additional things you may wish to configure about the bridge.
+
+<!-- NOTE: relay mode is not supported for this bridge -->
+See [this section](configuring-playbook-bridge-mautrix-bridges.md#extending-the-configuration) on the [common guide for configuring mautrix bridges](configuring-playbook-bridge-mautrix-bridges.md) for details about variables that you can customize and the bridge's default configuration, including [bridge permissions](configuring-playbook-bridge-mautrix-bridges.md#configure-bridge-permissions-optional), [encryption support](configuring-playbook-bridge-mautrix-bridges.md#enable-encryption-optional), [bot's username](configuring-playbook-bridge-mautrix-bridges.md#set-the-bots-username-optional), etc.
+
+## Installing
+
+After configuring the playbook, run it with [playbook tags](playbook-tags.md) as below:
+
+<!-- NOTE: let this conservative command run (instead of install-all) to make it clear that failure of the command means something is clearly broken. -->
+```sh
+ansible-playbook -i inventory/hosts setup.yml --tags=setup-all,ensure-matrix-users-created,start
+```
+
+**Notes**:
+
+- The `ensure-matrix-users-created` playbook tag makes the playbook automatically create the bot's user account.
+
+- The shortcut commands with the [`just` program](just.md) are also available: `just install-all` or `just setup-all`
+
+  `just install-all` is useful for maintaining your setup quickly ([2x-5x faster](../CHANGELOG.md#2x-5x-performance-improvements-in-playbook-runtime) than `just setup-all`) when its components remain unchanged. If you adjust your `vars.yml` to remove other components, you'd need to run `just setup-all`, or these components will still remain installed.
+
+## Usage
+
+To use the bridge, you need to start a chat with `@blueskybot:example.com` (where `example.com` is your base domain, not the `matrix.` domain).
+
+You can then follow instructions on the bridge's [official documentation on Authentication](https://docs.mau.fi/bridges/go/bluesky/authentication.html).
+
+After logging in, the bridge will create portal rooms for some recent chats. Portal rooms for other chats will be created as you receive messages.
+
+## Troubleshooting
+
+As with all other services, you can find the logs in [systemd-journald](https://www.freedesktop.org/software/systemd/man/systemd-journald.service.html) by logging in to the server with SSH and running `journalctl -fu matrix-mautrix-bluesky`.
+
+### Increase logging verbosity
+
+The default logging level for this component is `warn`. If you want to increase the verbosity, add the following configuration to your `vars.yml` file and re-run the playbook:
+
+```yaml
+# Valid values: fatal, error, warn, info, debug, trace
+matrix_mautrix_bluesky_logging_level: 'debug'
+```