Hi,
For Admin on mobile view, I guess it needs to be a cloud based.
Do you have an Azure account?
If yes, then it can be cloud based app only.
And I have made many invoice management, bar code scanner etc projects during my work tenure. So I can create that.
Also, I can make a common module, which can be used for any module you want like Pharmacy, Restaurant, Services, Saloon etc.
Please respond for further communications.
With regards,
Khush