The diff modifies two lines in `src/snek/service/chat.py` within the `ChatService` class. The first change removes the `await` keyword from the notification channel message creation, wrapping it instead with `async self.app.create_task()`. The second change removes the outer `await self.app.create_task()` wrapper from the socket broadcast call, making it a direct synchronous call. These adjustments alter the concurrency model for both notification delivery and socket broadcasting operations.