Build your pizzeria website in Dundee
Dundee shifted its centre to the waterfront and left the old middle to whoever still lives there. Money went to Broughty Ferry, young families went to the suburbs, and the kitchen in the middle has no discovery because discovery does not come there. What comes is habit and proximity.
You are not competing with the place down the street, you are the only place on that street
A customer in Whitfield or Coldside is not comparing you to somewhere in the city centre. They are asking what is nearest, and you are the only answer that matters. So a site that names your street and your neighbourhood, and shows hours they can trust, turns neighbourhood loyalty into repeat orders.
The app is worthless here. It shows your delivery zone to a city-wide search you will never win. Your own site and your phone number visible without a click is what a local customer will use.
The mailing list matters more than the app
An app shows you to someone new. A mailing list shows you to someone who came once and will come again. In a neighbourhood city like Dundee where discovery is not the game, the repeat order is everything. So collect email from every order, offer a discount code in the email, and by the end of the month you own a channel that no app can compete with.
Be open when you say you are open
A closed kitchen and a Google listing still showing open is the fastest way to lose a regular. So if you are only open Wednesday through Sunday, say so. If you close for a week in summer, tell the list. A site that tells the truth keeps the customer who believes you.