The server pushes each new step over server-sent events
(GET /api/v1/live/stream) the moment it is sampled, so updates no
longer arrive in uneven pairs. The chart slides left steadily between
steps instead of jumping, and the big numbers count to their new
value. Both stay still with reduced motion.
A new Live page shows current download and upload per peer, updated
every 2 seconds, with the last 2 minutes as a chart and a small chart
per peer. The server reads the WireGuard counters every 2 seconds and
keeps 2 minutes in memory; GET /api/v1/live serves them, with since=
for only the newer steps. The dev simulator now adds traffic in
proportion to the time between samples.
Daniel Redetzke