Signal¶

brew install signal-cli

signal-cli link -n "optional device name" | tee >(xargs -L 1 qrencode -t utf8)
# or
signal-cli link -n "optional device name" | xargs -L 1 qrencode -o /tmp/qrcode.png & while [ ! -f /tmp/qrcode.png ]; do sleep 1; done; xdg-open /tmp/qrcode.png