How to record an asciicasts for an example

sudo pip3 install asciinema
asciinema auth & click link
echo "set -g default-shell /usr/bin/fish" >> ~/.tmux.conf
Prepare tmux windows and commands
Ctrl-B+D to detach session
asciinema rec -c "tmux attach"
Call the executables in the prepared windows
Ctrl-D to stop after ~30 seconds
sed 's/username/hypnotoad' /tmp/foo.cast
asciinema upload /tmp/foo.cast
On asciinema.org: Make recording public & add link back to example