This is for logging from a flask app with sendxmpp, because [prosody](https://prosody.im) is far easier to set
up compared to setting up an email server.

Not only is prosody easy to setup, but it is very [well-documented](https://prosody.im),
has it's own [ppa](https://prosody.im/download/package_repository),
and it's also trivial to add a [hook for Let's Encrypt Certs](https://prosody.im/doc/letsencrypt) in your `certbot renew` cron.

I find that [poezio](https://github.com/poezio/poezio) is a great xmpp client on Linux,
and [Yaxim](https://github.com/yaxim-org/yaxim) is great on Android.

Also, here's the [manpage for sendxmpp](https://manpages.debian.org/buster/sendxmpp/sendxmpp.1p.en.html).