To match users for social meetups based on shared interests and availability, consider the following approach:

Profile Creation: Users fill out profiles with their interests, hobbies, preferred activities, and available times for meetups.

Interest Matching: Use algorithms to match users based on overlapping interests, such as hobbies, favorite sports, or specific activities they enjoy.

Availability Matching: Integrate a scheduling tool that allows users to input their preferred times for meetups, ensuring compatibility with others' availability.

Suggestions & Notifications: The system can suggest potential meetup matches, notify users of possible connections, and allow them to choose when and where to meet based on mutual availability.