60 people: 30 alone, 30 in 15 group projects of two, 45 projects of the
largest example. Each has the document and the room open, moves a pointer
every 2 s, pings every 6 s; in a group both move a device every 10 s. A
line a minute: the rooms' lag (M3's probe), a change's way to the
partner, what got lost, and /healthz.
Against an F a dashboard reconciles, M9_DASHBOARD/M9_SESSION/M9_USER make
the projects through the dashboard and sign everybody in as that person —
otherwise the next reconciliation ends every session (measured: all 120
sockets in the second minute).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>