This define how users get support, what's an emergency and what is supported.
It also add some guidelines regarding how and when should the sysadmin team adopt a service

That scenario is more complex and has more implications than just
renewing the key. It *also* includes cert revocation so it's implicit
as well.

thanks weasel for the instructions

The multi-user.target does not exist in user-level systemd services,
so this Install configuration never triggers.

They assume a lot of prior knowledge. In particular, they do not show
how to create an account.