How to specify the minimum possible number of products for a configurable product in Magento?

Question

Magento

The shop sells fabrics and accessories. By default, the minimum purchase amount is 0.5. This is necessary for fabrics, because they are sold by 0.5m. In addition to fabrics, there are also all sorts of buttons, locks, etc. A configurable product has been created for locks, in which locks of different colors are combined. Each individual product has a minimum volume of 1, but in a configurable product, the minimum volume cannot be specified and it turns out that 0.5 locks are offered for sale. Of course, this amount doesn’t give you the opportunity to put it in the basket, but it’s still not an option, you need to display 1.
I tried to specify 1 by default, then the fabrics also cost 1m, although you can buy 0.5m.