Key Mapper Review
Key Mapper is an app on F-Droid to map hardware buttons on your device to many different actions like turning on and off your flashlight, calling someone, opening an app etc. There are many actions that can be triggered, far too many to list here. So i'll just imclude some screenshots of some of the actions.
Get it on F-Droid (F-Droid repository): https://www.f-droid.org/packages/io.github.sds100.keymapper/
Github repository: https://github.com/sds100/KeyMapper