import djhacker
djhacker.formfield(
    YourModel.your_field,
    form_class=YourFormField,
    custom_form_field_kwarg='something',
)

@djhacker.register(models.ForeignKey)
def custom_fk_formfield(model_field, **kwargs):
    return dict(
        form_class=YourFormField,
        custom_form_field_kwarg=something,
        **kwargs,
    )
# you don't need to pass extra arguments anymore for ForeignKey fields:
djhacker.formfield(YourModel.some_fk, queryset=Some.objects.all())

import djhacker
djhacker.media_script_attributes()

class YourWidget(forms.Widget):
    class Media:
        js = [
            'your/script.js[type=module][defer=true]',
        ]

<script src="/static/your/script.js" type="module" defer="carview.php?tsp=true"></script>

@djhacker.register(models.ForeignKey)
def custom_fk_formfield(model_field, **kwargs):
    return YourFormField, {
        'custom_form_field_kwarg': 'something',
        **kwargs,
    )

@djhacker.register(models.ForeignKey)
def custom_fk_formfield(model_field, **kwargs):
    return dict(
        form_class=YourFormField,
        custom_form_field_kwarg=something,
        **kwargs,
    )