And test for (kind of) SSH availability

This gives us a good opportunity to mention the privacy policy, too.

At least, I suppose it was incorrect.  It won't build anywhere it has not
already built.  I don't know how it built where it already built.

The new version of PaymentServer has incompatible changes that require this.

so it won't be running yet when this runs

right???

reordering/reformatting just to make commenting easier

maybe the other systemd timer fires right away too