🎯 Why signals matter: clean logic, modularity, safe extensions
🔔 Built-ins: post_save, pre_delete, custom Signal
💡 Practical uses: welcome emails, stock updates, rating recalculation, delete guards
🚀 Best practices: use dispatch_uid, async tasks, AppConfig.ready()
📦 Bonus: custom signals to broadcast your app’s unique events
👉 Learn to orchestrate your Django app like a pro!
https://blog.devgenius.io/django-signals-2025-a-hands-on-guide-to-event-driven-apps-3af7d6464928
