For each additional server add another array to icecast_servers

serial_port = "/dev/ttyACM0" serial_baud = 115200
serial_timeout = 5

icecast_servers = { 1: { "username": "source", "password": "broadcastifypass", "host": "broadcastify.com:80", "mount": "brodcastify-mount", "https": 0 }, 2: { "username": "source", "password": "source_pass", "host": "example.com/stream", "mount": "scanner_stream", "https": 1 },

}