M2.7: Host Game, backups, launchd/systemd samples, hosting and Tailscale guide

scripts/world/world.gd

@@ -756,6 +756,9 @@ func _go_online() -> void:
 		bar.position = Vector2(16, 40)
 		$HUD.add_child(bar)
 	Actions.notify.emit("Connected to %s" % Net.server_info.get("server_name", "the server"))
+	if Net.hosting:
+		var at := Net.my_addresses()
+		Actions.notify.emit("You're hosting. Friends join at %s" % (", ".join(PackedStringArray(at)) if not at.is_empty() else "this computer's address"))
 
 func _on_net_left(_reason: String) -> void:
 	WorldNet.leave_world()