emitted 0 passed gate 0 written 0 dropped 0 core logger edited 0 lines
// pick a level and press it — one call, three sinks
Sourcelogger
Threshold gate
idlepress a level
if (level < threshold)
    return;
Appenders — fan-out3 sinks
One call, three sinks
Press ERROR. The event passes the gate once, then the same event object reaches every appender.
Flip 📄 File to { } — same event, two shapes on screen at once.