+An example of logging info to local syslog, but warn to a Slack channel:
+```
+config :logger,
+ backends: [ {ExSyslogger, :ex_syslogger}, Quack.Logger ],
+ level: :info
+
+config :logger, :ex_syslogger,
+ level: :info,
+ ident: "pleroma",
+ format: "$metadata[$level] $message"
+
+config :quack,
+ level: :warn,
+ meta: [:all],
+ webhook_url: "https://hooks.slack.com/services/YOUR-API-KEY-HERE"
+```
+
+See the [Quack Github](https://github.com/azohra/quack) for more details