const team = await api.fetch('/staff');
team.filter(e => e.checkedIn)
    .map(e => e.name);

<Attendance geo="inside"
  selfie={true} />

SELECT name, check_in
FROM attendance
WHERE date = CURDATE();

if (distance <= radius) {
  markPresent(user);
}

01001010 11010110
10110101 00101101