Social apps are hard to build but they will form the gateway to onboard the next wave of users to crypto.Food is another domain that captures a large number of people and has the ability to form niche communities around it. With crypto-powered reputation and incentives, a community and frontend for niche foods should be a fascinating way to create these communities.
Think zomato or foursquare but just focused on one thing (biryani, coffee etc.) with reputation badges & crypto loyalty incentives for reviewers in the app.