Develop a Drowsiness Detection Android Mobile Application

i need a developer to develop an android application that can detects drowsiness by opening a camera develop using tensorflow lite and android sdk . My aim is that the project will use datasets from kaggle to enhance facial expression of only yawning and eyes closing. But in most muslim countries, some people may use their hands to cover their mouth if they yawn. So i need an app do determine that too. Furthermore, i want to add haar-cascade method just to detect the localization of eyes and mouth . Down here is the sample sketch of this app.