Cannot render list item with dynamic/flexible height

I understand that it is not possible with a ListView as it is a Flutter constraint. However, it should be possible with SingleChildScrollView. The problem here is that without having a box constraint on the SingleChildScrollVIew ( which is scrollable column in FF ), it throws an error and in turn nothing is rendered.

Without this feature it seems like we are forced to generate only list items with fixed height. Or is there another way to achieve this?