Green Peppers address two main issues. First it mends the huge disconnect that exist between people and the origins of the food they consume. Second it promotes a 100 mile diet.
Once the user signs up the app provides listings for the available categories with a 100 mile radius(in the future the user will be given the ability to adjust the range but not exceeding 100 miles).
Users can rate other sellers and remove their own listings.
Anyone can add a listing to any of the categories.
This app is totally dependent on local user generated content, so basically a user like yourself adds a listing to a category and if that listing is in your radius you are able to see it and contact that provider/user.
Ex: User1 makes home brewed beer, he was over zealous in brewed a few to many and decides to list his surplus under the Beer category in the Green Pepper app. User2 is within the 100m radius and sees User1's home brew beer, User2 clicks the item and is taken to a detail view showing reviews of the seller/user and decides to call User1 for some home brewed beer.
Any bartering/exchange of money is done outside of the app on terms agreed upon my both parties.