> > a stuck mirror

Detect the mirror being stuck and shut the beam off. Easy.

Hint: how bad would it be if the MCU in your gas heating boiler latched up and wouldn't shut the burner off? How is this mitigated?

This was addressed in the original comment:

> Additionally, no LIDAR manufacturer publishes beam-failure shutoff latency. Most are >50ms, which can be long enough for permanent injury