VPN APP (V2ray+trojan+shadowsocksR) 5 O.S (ios+android+windows+mac+linux)

smooth and fast VPN using protocols: V2ray-trojan-ssr vpn app with my own Ui & a basic backend panel using php+mysql i need app for (ios + android + windows + mac + linux ) = minimum $1500 / maximum $5000 for whole project, official programing language only ! not flutter-xcode-react,js...! Microsoft studio = windows version Android studio = android version Swift = ios//mac version C ,c++ = linux version i provide: Ui + panel template + servers + openSource vpn protocols documentiation + API for authentication. in text file described what exatly i need, please read it, important to followed by text file