What technologies and programming languages were used to implement the server component in your last project?

In my last project, the server component was implemented using the following technologies and languages:

• Programming Language: Java (or Kotlin) — for writing business logic and REST API.
• Framework: Spring Boot — to simplify development and configuration of the server application.
• Database: PostgreSQL — for data storage.
• API: RESTful services using JSON for data exchange with the Android application.

This stack allows creating scalable and maintainable server solutions that are well integrated with the Android client.