MERN-Advertisements_on_the_map-legacy_support!

Main priority is stability of app:
 - typeScript (tsx) - strict type
 - testing react
  - jest
 - error handling
  - pm2 error log - для Node
  - ErrorBoundary - для REACT
  - mongo-eroor-log - для MongoDB
DB + ORM
 - MongoDB + Mongoose
 - PostgreSQL + Sequalize
  - tranzactions
  - validation
react
 - ErrorBoundary - for REACT
 - redux or mobx
 - UI fraimworks: bootstrap, Material UI, Ant Design
 - jwt authentication
 - react-dom, react-helmet
 - sass
 - typescript
 - other packages - see package.json in exampels
Node
 - Express
Server - ubuntu 22.04
 - nginx - config
 - firewall - config
Scaling:
 - nginx - load balancer
 - docker