Build me a native android App for my Website (php, javascript, css)

Hi There,

I am interested in 'converting' my website , which consists of php, javascript and css , into a native Android App (java, maybe flutter, maybe kotlin - depends on result; app must gain access to native smartphone features like camera, push notif., etc).

So, you should built an App that has the same design as my website, when I look at it on my smartphone via webbrowser (it is responsive already).

One crucial question for me is:
What if I do any changes to my website in future - add buttons, functions, change some design - will I then each time have to hire someone, to do the same changes on my app,
or are you able to do it in a way, so that changes to my website are automatically being processed and integrated in my native app ?


I looked at alternatives like webview transformation (cordova, flutter, react native, pwa), but this is not enough for me as I need to have native functions in my app.


I have $250 for this project.


btw: I need you to sign a NDA agreement with me;
freelancer.com offers a standardized procedure here, so this should be no big problem, as everything is automized


Regards