Before Food Trucks, Americans Ate 'Night Lunch' from Beautiful Wagons
This is a gold standard for what a platform should be.  An individual sells a product at a one-off price to a entrepreneur who then is able to make a living off of it.  There is no 30% take in perpetuity with regulations that slowly chip away at margins.  It's just one person selling another an honest opportunity to make money. And as they scale, everyone in the consumption chain benefits -- more sales, more businesses and more places to eat easily for the end customer.