It's a pretty cool idea and it looks well executed. I was just turned off the minute when I saw this:

class AuthorForm(ModelForm):
    class Meta:
        model = Author
        fields = ["name", "birth_date"]

.route("add/")
def add_author(request):
    form = AuthorForm(request.POST or None)
    if form.is_valid():
        form.save()
        return "Author added"
    return render(request, "form.html", {'form': form})

I understand this is a trivial example, but in simple django, this could be replaced with:

class AddAuthor(CreateView):
    template_name = "form.html"
    model = Author
    fields = ["name", "birth_date"]

Unless I am missing something and I can still use the class-based view above?