One trip everyone can actually take
Fermat helps 2–10 friends choose a trip that works for everyone without exposing individual budgets. Each person privately adds dates, budget, home country and preferences. Fermat compares the constraints, shows fair options the whole group can vote on, then turns the winner into a shared plan.
A source that found nothing is a measurement. A source that has not run is a gap. Neither means the launch lacks the thing.