Complete setup and installation of flutter based app with all three Admin, User and Vendor Applications from provided source code from theme-forest

We are a solar consulting firm and we are looking forward to hire an App Developer who can help us to install and completely set up the admin, user and vendor application and also make it live on IOS, Android & Web platforms.
we are sharing the link of the application also that we want to install.
https://codecanyon.net/item/handyman-service-flutter-ondemand-home-services-app-with-complete-solution/33776097