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Chatbot that notifies you of nearby vaccine appointments
Pidgin is an easy to use and free chat client used by millions. Connect to AIM, MSN, Yahoo, and more chat networks all at once.
It's not my software, but I could try to troubleshoot with you. If you're on Windows, you have to select server yax.im. If you can't get Gajim to work, I used to use Pidgin for my XMPP communication protocol needs.