Stefan graced the Agaric chat room with a Ruby bot that reports when commits are made. Sometimes it stops working (tries to rejoin the chat room, dies immediately) and it can be fixed by ending the Ruby process and starting it again.
ssh simone.mayfirst.org
sudo su
su stefan
top # identify the ruby process or processes (PID), for this say it is 12345
kill -9 12345
rbot & disown