Start a business adding proper sliding contacts micro switches to popular devices. Then transition to selling them preinstalled. Simply cut the power wire to the camera module and microphone. I would love to pay a little more for a device with a physical switch and an option for no screen side camera.

I was thinking the other day, if I decide to replace my battery in my phone, I am going to design a TPU phone case that integrates the rear battery cover and not installing the rear glass bullshit too.

Still, that does not fix everyone else carrying stalkerware.