RasberryPi Smart PanTilt Camera Correction

I need a GUI program that allow the user to active a face tracking whit servos of the PanTilt camera kit just like this (https://www.pyimagesearch.com/2019/04/01/pan-tilt-face-tracking-with-a-raspberry-pi-and-opencv/). Then the program need to makes profiles of faces that recognise and when certain conditions occur starts certain actions (like "Profile1" is 3 meters from the camera, --> start a script (python script selected from the Pi desktop); or acrtive flashlight, starts audio file, ecc.)
I've already a code that dosen't work the freelancer don't want to work anymore (he take the money already). maybe some portions of the code can speed up the realizzation of this project.
More details on chat.