There should be roughly ~0 cost (maybe a few cents?) to tie indicator LEDs to the camera and microphones's power supplies, and make it independently auditable b

There should be roughly ~0 cost (maybe a few cents?) to tie indicator LEDs to the camera and microphones's power supplies, and make it independently auditable by anyone with a multimeter (and maybe a magnifying glass?) Is there a database of laptops that do this correctly? I guess you'd also want the microphone physically disconnected when the cover is closed, or at least have the LED visible when the cover is closed.