{
  "app": {
    "name": "My Application",
    "version": "1.0.0",
    "debug": false
  },
  "server": {
    "host": "localhost",
    "port": 8080,
    "timeout": 30
  },
  "database": {
    "host": "localhost",
    "port": 5432,
    "name": "mydb",
    "user": "admin",
    "password": "secret"
  },
  "features": {
    "enable_logging": true,
    "max_file_size": 1048576,
    "allowed_extensions": ["jpg", "png", "pdf"]
  }
}