composer require norman-huth/nova-key-input
Based on KeyValue Field
KeyInput::make(__('Prices'), 'prices')
->rules('json')
->disableEditingKeys()
->disableAddingRows()
->disableDeletingRows()
->keyLabel(__('Country'))
->valueLabel(__('Price'))
->type('number')
->step(0.01)
->min(0)
->max(5000)
->required()
