Install Go (if not already installed).
Clone the repository and navigate to the project directory.
Run go run main.go to start the server.
Use curl or Postman to test the API:

    Check balance: GET http://localhost:8080/balance?name=Mark
    Transfer money: POST http://localhost:8080/transfer with JSON payload:

{
  "from": "Mark",
  "to": "Jane",
  "amount": 20
}