Hello.
I propose an amendment to the new law on personal complementary work: the list of jobs is expanded, and the occasional delivery of unaddressed parcels is added. Producers of handicrafts and handicraft products should have the cost of materials used and the cost of the stall taken into account in the income tax return when selling at a stall (e.g. fairs).  It is not the same if the work is just a service (cleaning, babysitting, etc.), there is no material cost, but if the work is made and sold at a stall, it is a major cost that is not taken into account for income tax purposes. One and the other are not on an equal footing.