TFW you spend an evening fighting acme/file permissions to add an SSL cert to your XMPP server, then realise afterwards you don't know anyone with an XMPP account anyway

(The time is not wasted, in that I want XMPP so my server can alert me when bad things[*] happen to it, I'm just thinking that it could be nontrivial to test that it works )

[*] the particular set of bad things I have in mind necessarily excludes "help, I lost network connectivity to the xmpp server", yes