fn active_here() -> Option<bool>Expand description
Whether a person is at this device now, for its entry (Entry::active):
on a phone, unsaid (in use only while Sioul is on its screen); on a
computer, as active_of reads the session’s last reading and the last
press in Sioul. The system is read on a thread of its own every thirty
seconds (watch_system): an exchange, a start or a close only read the
value kept, and never wait on the system’s bus (a bus that never answers
once held the exchanges for good: review of battery part C, F3 and G1).
No reading yet, or one two minutes old: unsaid (Sioul running counts), a
recent press aside.