Restaurants don't want to care about deploying their own delivery services. If they can pay a fee and outsource that they will. Open Source would only work if

Restaurants don't want to care about deploying their own delivery services. If they can pay a fee and outsource that they will. Open Source would only work if there were vendors to sell a packaged solution that restaurants can just plug into their systems (menu/ordering), no small restaurant will want the headache of maintaining their own software infrastructure...