There have been more than a few companies with similar ideas, and most have since shut down. You might want to look at those companies - what were their feature

There have been more than a few companies with similar ideas, and most have since shut down. You might want to look at those companies - what were their features, how much capital did they have, what was their timeline, why did they fail, etc. Trying to corner the entire restaurant market is very hard. For example, a company called uVore tried exactly this but found greater success catering to a more niche market (in their case, coffee pickups). Maybe consider a more targeted approach? Just some ideas. Good luck!