telnet postcard.sfconservancy.org 2333

https://dustycloud.org/blog/conservancy-card/

Christopher Lemmer Webber:

... Try running "telnet postcard.sfconservancy.org 2333" in your terminal... you won't regret it, I promise! You should get to see a fun "season's greetings postcard" animated live in your terminal. My friends at Software Freedom Conservancy are running a supporters drive and I was happy to do this to help (if you were a supporter in the past, you should be getting a matching postcard in the mail!) ...