text: from django.contrib.sites.models import Site
  from django.db.models.signals import post_save
  from django.dispatch import receiver
  from core.models import SiteCustomization
  
  
  @receiver(post_save, sender=Site)
  def create_site_customization(sender, instance, created, **kwargs):
      if created:
          SiteCustomization.objects.create(site=instance)
  
  
  @receiver(post_save, sender=Site)
  def save_site_customization(sender, instance, **kwargs):
      instance.sitecustomization.save()
  