Food truck on wheels: map and pre-order

We have one food truck that parks in a different neighborhood almost every day, and customers constantly ask where we are now and if they can skip the line. We need a web application that answers both questions immediately. The foundation is a live map with the truck's current pin: coordinates sent by driver device every couple minutes, plus a weekly schedule nearby so people can see the three closest stops in advance. From the same screen a hungry visitor should open the menu, see the daily special with a separate badge and price and place a pre-order, choosing a time slot for pickup. Slots must account for kitchen capacity: as soon as a fifteen-minute window fills up, it closes automatically. For each completed order, a digital stamp is awarded on the loyalty card, and the tenth stamp unlocks a free drink redeemable at the window with a one-time code. Event organizers separately submit catering requests via a short form: date, guest count, address and rough budget go into a simple manager inbox. Result: responsive frontend, admin panel for menu and schedule edits, order queue screen for the team and clear setup instructions.