This idea is actually relatively easy to implement, but I still think it would be successful in certain towns and villages. It's about writing a small PWA and hosting it on the restaurant's website. You can charge an annual fee for the hosting and have no further effort during the year.
Many restaurants do not deliver, but it is possible to pick up food. The queues are usually long and a team may not want to wait long to receive the food.
Would that be possible in your town? Ask a restaurant if they are interested.