It is demo project for devlops tools

1. react for fromtend (only not extra un use and more dynamic and etrative web just for demo) (BACKEND URL LOCAL for VITE_BACKEND_URL=http://localhost:5000, VITE_BACKEND_URL_SQL=http://localhost:3000)
2. nodejs use backend (just express, cors, dotenv package install and one one page)
3. db for backend in two pages main.js port local 5000 is for mongodb and sql for app.js port local 3000 & in frontend in also two ports for backend 3000 and 5000 in env 3000 for sql and 5000 is for mongodb