Comment by anthk

I just use this script in a terminal. It needs curl, lame and minimodem. Easy and quick on any GNU/Linux or BSD distro, or WSL2:

    #!/bin/sh
    curl -s http://internet-tty.net:8000/ITTY \
      | lame --decode --quiet --mp3input - - \
      | minimodem --rx rtty -f - -a --print-filter -i