Mine runs locally on the DVR. I wouldn’t trust any cloud service with my video.

My old setup only had normal motion detection. I couldn’t enable alerts with that because it would go off all night from the bugs swarming the IR LEDs on the cameras.

Sure, there are good uses.

I use the RADE V1 codec in FreeDV. It is an AI vocoder that packs high quality audio into 1500 Hz of bandwidth. It sounds much better than traditional codecs like AMBE or Codec 2.

Another one I use is AI motion detection for my security cameras. It recognises a vehicle or a person and significantly reduces the number of false alerts.