Play online via telnet:
telnet flappy.nullprogram.com
Build the game (make), install an inetd daemon and telnetd and put
this in /etc/inetd.conf.
telnet stream tcp nowait telnetd /usr/sbin/tcpd /usr/sbin/in.telnetd -L /path/to/flappy
By default the high scores database will be kept in a SQLite database
in /tmp. Use the -d option to change it.