Using groups and permissions efficiently in Django

Using Django Forms & APIs
1

For my Django projects, I am used to creating a custom user model and managing what my user can do for a specific route using a roles field like this:

class User(AbstractBaseUser, PermissionsMixin):
    name = models.CharField("full name", max_length=255, blank=True)
    email = models.EmailField("email address", unique=True)
    createdAt = models.DateField(auto_now_add=True)
    photo = models.ImageField(
        "profile photo",
        blank=True,
        null=True,
        validators=[
            FileExtensionValidator(allowed_extensions=["jpg", "png", "jpeg", "webp"])
        ],
    )  # by default retrieves file from media root
    role = models.CharField(
        max_length=50,
        choices=[(role.value, role.name) for role in USER_ROLES],
    )
    is_active = models.BooleanField(default=True)

    USERNAME_FIELD = "email"
    
    objects: CustomUserManager = CustomUserManager()
    
    def has_perm(self, perm, obj=None):
        if self.role == USER_ROLES.ADMIN.value:
            return True
        return super().has_perm(perm, obj)

    def has_module_perms(self, app_label):
        if self.role == USER_ROLES.ADMIN.value:
            return True
        return super().has_module_perms(app_label)

    def __str__(self) -> str:
        return f"{self.pk}-{self.email}"

    @property
    def is_staff(self):
        return self.role == USER_ROLES.ADMIN.value
    
    @property
    def is_superuser(self):
        return self.role == USER_ROLES.ADMIN.value

But I realize that it’s best to shift to a multi-role approach for flexibility and I was hoping to use the built-in Group and Permissions model for this. However, I was confused as to how to manage the groups and permissions for a user inside an view/API route and sync any changes in groups and permissions later on if needed. Can anyone suggest an efficient way of doing so without relying on the built-in Django Admin panel?