Could it be possible to buy goods from a wholesaler and sell them on Allegro, but give your margin?

I wonder if the idea of buying goods from a wholesaler and selling them on Allegro would work, but give your margin. In addition, order all these things to my room, I have such a warehouse, and if someone was buying a given item, I would go to the post office or deliver parcels to the courier myself. Have you heard of anyone who has done or is doing this and how is it going? Because the idea of selling goods and not even seeing them is so bad for me.