I believe that is the only way indeed. Though another commenter noted that these kinds of apps are heavily dependent on a network to work. Perhaps it can be an extension on Mastodon somewhere in the future.

Matchmaking is such a generic problem anyway. Friends, Business relations, Vacancies, Partners, Sex buddies. We'll get there, I believe.

what about web3? that seems to be thrown around as the solution for everything as of late. Couldn't decentralization actually help in this case?