cli registration of e-mail address with telia captive portal
sudo cp -r poke_captive_portal /opt/
sudo cp /opt/poke_captive_portal/poke-telia.* /etc/systemd/system/
sudo cp /opt/poke_captive_portal/poke.conf /root/.config/
sudo systemctl enable --now poke-telia.timer
Ensure to adjust ~/.config/poke.conf to your system.