Well, a very domestic day:
Finished the Node-RED Geofence flow.
Removed Postfix, Dovecot etc. on old server now I am using Mailcow.
Installed msmtp & made sure all system messages were still sent to me.
Finished configuring the reverse proxy on new main server to point to some test sites on the old server and redid all the Apache config files & certs.
Hacked back into a Joomla site where I'd updated the password ages ago and didn't save it (did a direct update in the user database table)