Certbot has removed support of certbot-auto for Debian-based systems
(cf.
https://github.com/certbot/certbot/blob/adacc4ab6dc63b024b17f0ec5adeb1adc9f93300/certbot-auto#L802).

Official instructions for Debian
(https://certbot.eff.org/lets-encrypt/debianbuster-other) tell to use
the snapd package (https://packages.debian.org/buster/snapd)... which
depends on systemd and has not been rebuilt separately for Devuan yet.

Is there any plan to do so?
I know making the list of repackaged packages grow is troublesome for
maintenance future-wise...

Cheers,
Bernard (Beer) Rosset
https://rosset.net/