Tracearr/Media-Server-SSE v0.4.0 on GitHub

server.stats event broadcast every 6 seconds while at least one client is connected, carrying at (unix seconds), hostCpuUtilization, processCpuUtilization, hostMemoryUtilization, and processMemoryUtilization. Host values read /proc and are omitted off Linux; inside a container /proc reports the host, matching what Plex's statistics endpoints show. The 6-second cadence matches Plex's resolution so dashboards can chart all server types together.
task.started, task.progress, and task.completed events from the server's scheduled task manager. Payloads carry taskId, taskName, and taskCategory on start, progress (0-100) during execution, and state (the completion status) on finish. Progress is throttled to one event per task per percent moved or per 2 seconds, whichever comes first.