smartctl_exporter runs on every non-container machine, bound to
localhost and scraped by Vector into the host-tagged metrics path.
Alerts on a failed SMART status, NVMe critical warnings, new NVMe media
errors and NVMe spare below its threshold.

Memory PSI comes from /proc/pressure/memory via an exec source, as a
counter of stalled seconds, so the alert takes an exact 10m rate instead
of the kernel's 5m avg300 EWMA. Plus an alert on any OOM kill.

MemoryPressure threshold 10%: some task stalling on memory a tenth of
the time over 10 minutes is sustained reclaim/swap thrash, while short
spikes such as big builds average out.

flake.lock: update

flake.lock: update