This is shown in the BBB room when doing office hours.

This is especially important if we do a vanity host, to avoid breaking links.

See tpo/tpa/gitlab#97

this regroups the other Howtos

that way we don't have to rebuild our CA infrastructure immediately,
yet are still able to fix email reception from (say) state.gov

This was necessary to figure out a crash related to the apache
exporter not sending any metrics anymore.