Add 'bot-channel' config in bot.conf.example and use it, if present, in

bot_channel.py

bot.conf.example

@@ -7,6 +7,9 @@ tls-certificate          =
 tls-api-key              =
 tls-api-certificate      =
 
+# the default channel BitBot automatically joins
+bot-channel              =
+
 # https://openweathermap.org/api
 openweathermap-api-key   =
 

modules/bot_channel.py

@@ -5,5 +5,6 @@ from src import ModuleManager, utils
 class Module(ModuleManager.BaseModule):
     @utils.hook("received.numeric.001")
     def do_join(self, event):
-        event["server"].send_join(event["server"].get_setting("bot-channel",
-            "#bitbot"))
+        bot_channel = event["server"].get_setting("bot-channel",
+            self.bot.config.get("bot-channel", "#bitbot"))
+        event["server"].send_join(bot_channel)